YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A The Products: Y-Series Features Applications * * * * * Intermediate Bus Architectures Telecommunications Data communications Distributed Power Architectures Servers, workstations Benefits * High efficiency- no heat sink required (0.95 at 5 VDC output) * Reduces total solution board area * Tape and reel packing * Compatible with pick & place equipment * Minimizes part numbers in inventory * Low cost * RoHS lead-free solder and lead-solder-exempted products are available * Delivers up to 10 A (55 W) * Extended input range 9.6 to 14 VDC * No derating up to 85 C (70 C for 5 VDC) * Surface-mount package * Industry-standard footprint and pinout * Small size and low-profile: 1.30" x 0.53" x 0.314" (33.02 x 13.46 x 7.98 mm) * Weight: 0.22 oz [6.12 g] * Co-planarity < 0.003", maximum * Synchronous Buck Converter topology * Start-up into pre-biased output * No minimum load required * Programmable output voltage via external resistor * Operating ambient temperature: -40 C to 85 C * Remote output sense * Remote ON/OFF (positive or negative) * Fixed-frequency operation * Auto-reset output overcurrent protection * Auto-reset overtemperature protection * High reliability, MTBF approx. 27.2 million hours calculated per Telcordia TR-332, Method I Case 1 * All materials meet UL94, V-0 flammability rating * UL60950 recognition in U.S. & Canada, and DEMKO certification per IEC/EN60950 Description The YS12S10 non-isolated DC-DC converter delivers up to 10 A of output current in an industry-standard surface-mount package. Operating from a 9.6 to 14 VDC input, the YS12S10 converters are ideal choices for Intermediate Bus Architectures where Point-of-Load (POL) power delivery is generally a requirement. The converters provide an extremely tight regulated, programmable output voltage of 0.7525 to 5.5 VDC. The YS12S10 converters provide exceptional thermal performance, even in high temperature environments with minimal airflow. No derating is required up to 85 C (up to 70 C for 5 VDC output), even without airflow at natural convection. This performance is accomplished through the use of advanced circuitry, packaging, and processing techniques to achieve a design possessing ultra-high efficiency, excellent thermal management, and a very low-body profile. The low-body profile and the preclusion of heat sinks minimize impedance to system airflow, thus enhancing cooling for both upstream and downstream devices. The use of 100% automation for assembly, coupled with advanced power electronics, and thermal design, results in a product with extremely high reliability. JUL 20, 2006 revised to OCT 18, 2006 Page 1 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Electrical Specifications Conditions: TA = 25 C, Airflow = 300 LFM (1.5 m/s), Vin = 12 VDC, Vout = 0.7525 - 5.5 VDC, unless otherwise specified. Parameter Notes Min Typ Max Units 15 VDC Absolute Maximum Ratings Input Voltage Continuous -0.3 Operating Ambient Temperature -40 85 C Storage Temperature -55 125 C Feature Characteristics Switching Frequency Output Voltage Trim Range1 Remote Sense Compensation 300 By external resistor, See Trim Table 1 0.7525 1 Turn-On Delay Time With Vin (Converter Enabled, then Vin applied) With Enable (Vin = Vin(nom) applied, then enabled) 2 Rise time (Full resistive load) kHz 5.5 VDC 0.5 VDC Full resistive load From Vin = Vin(min) to Vo = 0.1* Vo(nom) 3 ms From enable to Vo = 0.1*Vo(nom) 3 ms From 0.1*Vo(nom) to 0.9*Vo(nom) 4 ms ON/OFF Control (Positive Logic) 3 Converter Off -5 0.8 VDC Converter On 2.4 Vin VDC Converter Off 2.4 Vin VDC Converter On -5 0.8 VDC ON/OFF Control (Negative Logic) 3 Additional Notes: 1 The output voltage should not exceed 5.5 VDC. 2 Note that the startup time is the sum of turn-on delay time and rise time. 3 The converter is ON if the ON/OFF pin is left open. JUL 20, 2006 revised to OCT 18, 2006 Page 2 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Electrical Specifications (continued) Conditions: TA = 25 C, Airflow = 300 LFM (1.5 m/s), Vin = 12 VDC, Vout = 0.7525 - 5.5 VDC, unless otherwise specified. Parameter Notes Min Typ Max Units 9.6 12 14 VDC Input Characteristics Operating Input Voltage Range Input Under Voltage Lockout Turn-on Threshold 9.0 VDC Turn-off Threshold 8.5 VDC Maximum Input Current 10 ADC Out @ 9.6 VDC In VOUT = 5.0 VDC 5.5 ADC VOUT = 3.3 VDC 3.7 ADC VOUT = 2.5 VDC 2.8 ADC VOUT = 2.0 VDC 2.3 ADC VOUT = 1.8 VDC 2.1 ADC VOUT = 1.5 VDC 1.8 ADC VOUT = 1.2 VDC 1.5 ADC VOUT = 1.0 VDC 1.3 ADC 1.1 ADC VOUT = 0.7525 VDC Input Stand-by Current (Converter disabled) Input No Load Current (Converter enabled) Input Reflected-Ripple Current - is Input Voltage Ripple Rejection JUL 20, 2006 revised to OCT 18, 2006 5 VOUT = 5.0 VDC 76 mA mA VOUT = 3.3 VDC 60 mA VOUT = 2.5 VDC 45 mA VOUT = 2.0 VDC 41 mA VOUT = 1.8 VDC 38 mA VOUT = 1.5 VDC 35 mA VOUT = 1.2 VDC 33 mA VOUT = 1.0 VDC 30 mA VOUT = 0.7525 VDC 28 mA VOUT = 5.0 VDC 36 mAP-P VOUT = 3.3 VDC 34 mAP-P VOUT = 2.5 VDC 32 mAP-P VOUT = 2.0 VDC 31 mAP-P VOUT = 1.8 VDC 30 mAP-P VOUT = 1.5 VDC 29 mAP-P VOUT = 1.2 VDC 26 mAP-P VOUT = 1.0 VDC 23 mAP-P VOUT = 0.7525 VDC 20 mAP-P 120 Hz 72 dB See Fig. D for setup. (BW = 20 MHz) Page 3 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Electrical Specifications (continued) Conditions: TA = 25 C, Airflow = 300 LFM (1.5 m/s), Vin = 12 VDC, Vout = 0.7525 - 5.5 VDC, unless otherwise specified. Parameter Notes Min Typ Max Units -1.5 Vout +1.5 %Vout Output Characteristics Output Voltage Set Point (no load) 4 Output Regulation Over Line Full resistive load 1 2 mV Over Load Output Voltage Range (Over all operating input voltage, resistive load and temperature conditions until end of life ) From no load to full load 5 12 mV Output Ripple and Noise - 20 MHz bandwidth Over line, load and temperature (Fig. D) +2.5 -2.5 %Vout Peak-to-Peak VOUT = 1.0 VDC 10 20 mVP-P Peak-to-Peak VOUT = 5.0 VDC 25 40 mVP-P 1,000 F 5,000 F External Load Capacitance Plus full load (resistive) Min ESR > 1m Min ESR > 10 m Output Current Range 0 10 Output Current Limit Inception (IOUT) Output Short-Circuit Current ADC 20 ADC 3 Arms Co = 10 F ceramic. + 1 F ceramic 150/(1805) mV 30 s Co = 10 F ceramic + 1 F ceramic 150/(1805) mV 30 s Short = 10 m, continuous Dynamic Response Iout step from 5 A to 10 A with di/dt = 5 A/s Settling Time (VOUT < 10% peak deviation) Iout step from 10 A to 5 A with di/dt = -5 A/s Settling Time (VOUT < 10% peak deviation) Iout step from 5 A to 10 with di/dt = 5 A/s Co = 330 F polymer capacitors 5 100/(120 ) mV 55 s Settling Time (VOUT < 10% peak deviation) Iout step from 10 A to 5 A with di/dt = -5 A/s Co = 330 F polymer capacitors 100/(120 ) mV 55 s Settling Time (VOUT < 10% peak deviation) Efficiency 5 Full load (10 A) VOUT = 5.0 VDC 95.0 % VOUT = 3.3 VDC 94.0 % VOUT = 2.5 VDC 93.0 % VOUT = 2.0 VDC 91.5 % VOUT = 1.8 VDC 90.5 % VOUT = 1.5 VDC 89.5 % VOUT = 1.2 VDC 87.5 % VOUT = 1.0 VDC 86.0 % VOUT = 0.7525 VDC 84.0 % Additional Notes: 4 Trim resistor connected across the GND and TRIM pins of the converter. 5 For VOUT = 5.0 VDC only. See the waveforms section for dynamic response and settling time for different output voltages. JUL 20, 2006 revised to OCT 18, 2006 Page 4 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Operations Vin Input and Output Impedance R* The YS12S10 converter should be connected via a low impedance to the DC power source. In many applications, the inductance associated with the distribution from the power source to the input of the converter can affect the stability of the converter. It is recommended to use decoupling capacitors (minimum 47 F) placed as close as possible to the converter's input pins in order to ensure stability of the converter and reduce input ripple voltage. Internally, the converter has 20 F (low ESR ceramics) of input capacitance. In a typical application, low - ESR tantalum or POS capacitors will be sufficient to provide adequate ripple voltage filtering at the input of the converter. However, very low ESR ceramic capacitors 47 to 100 F are recommended at the input of the converter in order to minimize the input ripple voltage. They should be placed as close as possible to the input pins of the converter. Y-Series Converter SENSE (Top View) ON/OFF Vout Vin Rload GND TRIM CONTROL INPUT R* is for negative logic option only Fig. A: Circuit configuration for ON/OFF function. The ON/OFF pin is internally pulled up to Vin for a positive logic version, and pulled down for a negative logic version. A TTL or CMOS logic gate, open-collector (open-drain) transistor can be used to drive the ON/OFF pin. When using open-collector (open-drain) transistor with a negative logic option, add a pull-up resistor (R*) of 75 k to Vin as shown in Fig. A. This device must be capable of: - sinking up to 0.2 mA at a low level voltage of 0.8 V The YS12S10 has been designed for stable operation with or without external capacitance. Low ESR ceramic capacitors placed as close as possible to the load (minimum 47 F) are recommended for better transient performance and lower output voltage ripple. - sourcing up to 0.25 mA at a high logic level of It is important to keep low resistance and low inductance PCB traces for connecting your load to the output pins of the converter. This is required to maintain good load regulation since the converter does not have a SENSE pin for compensating voltage drops associated with the power distribution system on your PCB. The remote sense feature of the converter compensates for voltage drops occurring only between Vout pin (Pin 4) of the converter and the load. The SENSE (Pin 2) pin should be connected at the load or at the point where regulation is required (see Fig. B). There is no sense feature on the output GND return pin, where the solid ground plane should provide a low voltage drop. ON/OFF (Pin 1) The ON/OFF pin (Pin 1) is used to turn the power converter on or off remotely via a system signal. There are two remote control options available, positive logic (standard option) and negative logic, with both are referenced to GND (Pin 5). The typical connections are shown in Fig. A. 2.3 to 5 V - sourcing up to 0.75 mA when connected to Vin. Remote Sense (Pin 2) Vin JUL 20, 2006 revised to OCT 18, 2006 SENSE (Top View) Rw ON/OFF Vout GND TRIM Vin Rload The positive logic version turns the converter on when the ON/OFF pin is at a logic high or left open, and turns the converter off when at a logic low or shorted to GND. The negative logic version turns the converter on when the ON/OFF pin is at a logic low or left open, and turns the converter off when the ON/OFF pin is at a logic high or connected to Vin. Y-Series Converter Rw Fig. B: Circuit configuration for ON/OFF function. If remote sensing is not required, the SENSE pin must be connected to the Vout pin (Pin 4) to ensure the converter will regulate at the specified output voltage. If these connections are not made, the converter will deliver an output voltage that is slightly higher than the specified value. Page 5 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Because the sense lead carries minimal current, large traces on the end-user board are not required. However, sense trace should be located close to a ground plane to minimize system noise and ensure the optimum performance. The ground pin of the trim resistor should be connected directly to the converter GND pin (Pin 5) with no voltage drop in between. Table 1 provides the trim resistor values for popular output voltages. When utilizing the remote sense feature, care must be taken not to exceed the maximum allowable output power capability of the converter which is equal to the product of the nominal output voltage and the allowable output current for the given conditions. Table 1: Trim Resistor Value The Closest V0-REG [V] RTRIM [k] Standard Value [k] open 0.7525 41.42 41.2 1.0 22.46 22.6 1.2 13.05 13.0 1.5 9.02 9.09 1.8 7.42 7.50 2.0 5.01 4.99 2.5 3.12 3.09 3.3 1.47 1.47 5.0 1.21 1.21 5.5 When using remote sense, the output voltage at the converter can be increased up to 0.5 V above the nominal rating in order to maintain the required voltage across the load. Therefore, the designer must, if necessary, decrease the maximum current (originally obtained from the derating curves) by the same percentage to ensure the converter's actual output power remains at or below the maximum allowable output power. Output Voltage Programming (Pin 3) The output voltage can be programmed from 0.7525 to 5.5 V by connecting an external resistor between TRIM pin (Pin 3) and GND pin (Pin 5); see Fig. C. Note that when trim resistor is not connected, output voltage of the converter is 0.7525 V. A trim resistor, RTRIM, for a desired output voltage can be calculated using the following equation: RTRIM = 10.5 -1 (VO -REQ - 0.7525) [k] where, RTRIM = Required value of trim resistor [k] VO-REQ = Desired (trimmed) output voltage [V] Vin Y-Series Converter The output voltage can also be programmed by external voltage source. To make trimming less sensitive, a series external resistor REXT is recommended between TRIM pin and programming voltage source. Control Voltage can be calculated by the formula: VCTRL = 0.7 - Control voltages with REXT = 0 and REXT = 15 k are shown in Table 2. (Top View) Vout Vin Rload GND TRIM R T-INCR Fig. C: Configuration for programming output voltage. Note that the tolerance of a trim resistor directly affects the output voltage tolerance. It is recommended to use standard 1% or 0.5% resistors; for tighter tolerance, two resistors in parallel are recommended rather than one standard value from Table 1. JUL 20, 2006 revised to OCT 18, 2006 [V] where VCTRL = Control voltage [V] REXT = External resistor between TRIM pin and voltage source; the k value can be chosen depending on the required output voltage range. SENSE ON/OFF (1 + REXT)(VO -REQ - 0.7525) 15 Page 6 of 27 Table 2: Control Voltage [VDC] V0-REG [V] VCTRL (REXT = 0) VCTRL(REXT = 15 k) 0.7525 0.700 0.700 1.0 0.684 0.436 1.2 0.670 0.223 1.5 0.650 -0.097 1.8 0.630 -0.417 2.0 0.617 -0.631 2.5 0.584 -1.164 3.3 0.530 -2.017 5.0 0.417 -3.831 5.5 0.384 -4.364 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Protection Features Input Undervoltage Lockout Input undervoltage lockout is standard with this converter. The converter will shut down when the input voltage drops below a pre-determined voltage; it will start automatically when Vin returns to a specified range. The input voltage must be typically 9.0 V for the converter to turn on. Once the converter has been turned on, it will shut off when the input voltage drops below typically 8.5 V. Output Overcurrent Protection (OCP) The converter is protected against overcurrent and short circuit conditions. Upon sensing an overcurrent condition, the converter will enter hiccup mode. Once overload or short circuit condition is removed, Vout will return to nominal value. Overtemperature Protection (OTP) The converter will shut down under an overtemperature condition to protect itself from overheating caused by operation outside the thermal derating curves, or operation in abnormal conditions such as system fan failure. After the converter has cooled to a safe operating temperature, it will automatically restart. Safety Requirements The converter meets North American and International safety regulatory requirements per UL60950 and EN60950. The maximum DC voltage between any two pins is Vin under all operating conditions. Therefore, the unit has ELV (extra low voltage) output; it meets SELV requirements under the condition that all input voltages are ELV. The converter is not internally fused. To comply with safety agencies' requirements, a recognized fuse with a maximum rating of 15 Amps must be used in series with the input line. The figures are numbered as Fig. x.y, where x indicates the different output voltages, and y associates with specific plots (y = 1 for the vertical thermal derating, ...). For example, Fig. x.1 will refer to the vertical thermal derating for all the output voltages in general. The following pages contain specific plots or waveforms associated with the converter. Additional comments for specific data are provided below. Test Conditions All data presented were taken with the converter soldered to a test board, specifically a 0.060" thick printed wiring board (PWB) with four layers. The top and bottom layers were not metalized. The two inner layers, comprised of two-ounce copper, were used to provide traces for connectivity to the converter. The lack of metalization on the outer layers as well as the limited thermal connection ensured that heat transfer from the converter to the PWB was minimized. This provides a worst-case but consistent scenario for thermal derating purposes. All measurements requiring airflow were made in the vertical and horizontal wind tunnels using Infrared (IR) thermography and thermocouples for thermometry. Ensuring components on the converter do not exceed their ratings is important to maintaining high reliability. If one anticipates operating the converter at or close to the maximum loads specified in the derating curves, it is prudent to check actual operating temperatures in the application. Thermographic imaging is preferable; if this capability is not available, then thermocouples may be used. The use of AWG #40 gauge thermocouples is recommended to ensure measurement accuracy. Careful routing of the thermocouple leads will further minimize measurement error. Refer to Fig. D for the optimum measuring thermocouple location. Characterization General Information The converter has been characterized for many operational aspects, to include thermal derating (maximum load current as a function of ambient temperature and airflow) for vertical and horizontal mountings, efficiency, startup and shutdown parameters, output ripple and noise, transient response to load step-change, overload, and short circuit. JUL 20, 2006 revised to OCT 18, 2006 Fig. D: Location of the thermocouple for thermal testing. Page 7 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Thermal Derating Load current vs. ambient temperature and airflow rates are given in Figs. x.1 to x.2 for maximum temperature of 110 C. Ambient temperature was varied between 25 C and 85 C, with airflow rates from 30 to 500 LFM (0.15 m/s to 2.5 m/s), and vertical and horizontal converter mountings. The airflow during the testing is parallel to the long axis of the converter, going from pin 1 and pin 6 to pins 2-5. For each set of conditions, the maximum load current is defined as the lowest of: Ripple and Noise The output voltage ripple waveform is measured at full rated load current. Note that all output voltage waveforms are measured across a 1 F ceramic capacitor. The output voltage ripple and input reflected ripple current waveforms are obtained using the test setup shown in Fig. E. iS (i) The output current at which any MOSFET temperature does not exceed a maximum specified temperature (110 C) as indicated by the thermographic image, or 1 H source inductance Vsource (ii) The maximum current rating of the converter (10 A) During normal operation, derating curves with maximum FET temperature less than or equal to 110 C should not be exceeded. Temperature on the PCB at the thermocouple location shown in Fig. D should not exceed 110 C in order to operate inside the derating curves. Y-Series CIN 4x47F ceramic capacitor DC-DC Converter CO 100F ceramic capacitor Vout Fig. E: Test setup for measuring input reflected-ripple currents, is and output voltage ripple. Efficiency Figure x.3 shows the efficiency vs. load current plot for ambient temperature of 25 C, airflow rate of 200 LFM (1 m/s) and input voltages of 9.6 V, 12 V, and 14 V. Power Dissipation Fig. x.4 shows the power dissipation vs. load current plot for Ta = 25 C, airflow rate of 200 LFM (1 m/s) with vertical mounting and input voltages of 9.6 V, 12 V, and 14 V. JUL 20, 2006 revised to OCT 18, 2006 1F ceramic capacitor Page 8 of 27 www.power-one.com 12 12 10 10 Load Current [Adc] Load Current [Adc] YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 0 0 20 30 40 50 60 70 80 90 20 30 Ambient Temperature [C] 50 60 70 80 90 Ambient Temperature [C] Fig. 5.0V.1: Available load current vs. ambient temperature and airflow rates for Vout = 5.0 V converter mounted vertically with Vin = 12 V, and maximum MOSFET temperature 110 C. Fig. 5.0V.2: Available load current vs. ambient temperature and airflow rates for Vout = 5.0 V converter mounted horizontally with Vin = 12 V, and maximum MOSFET temperature 110 C. 3.0 1.00 2.5 Power Dissipation [W] 0.95 Efficiency 40 0.90 0.85 14 V 12 V 9.6 V 0.80 2.0 1.5 1.0 14 V 12 V 9.6 V 0.5 0.0 0.75 0 2 4 6 8 10 0 12 Fig. 5.0V.3: Efficiency vs. load current and input voltage for Vout = 5.0 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. JUL 20, 2006 revised to OCT 18, 2006 2 4 6 8 10 12 Load Current [Adc] Load Current [Adc] Fig. 5.0V.4: Power loss vs. load current and input voltage for Vout = 5.0 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. Page 9 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Fig. 5.0V.5: Turn-on transient for Vout = 5.0 V with application of Vin at full rated load current (resistive) and 100 F external capacitance at Vin = 12 V. Top trace: Vin (10 V/div.); Bottom trace: output voltage (1 V/div.); Time scale: 2 ms/div. Fig. 5.0V.7: Output voltage response for Vout = 5.0 V to positive load current step change from 5 A to 10 A with slew rate of 5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. JUL 20, 2006 revised to OCT 18, 2006 Fig. 5.0V.6: Output voltage ripple (20 mV/div.) at full rated load current into a resistive load with external capacitance 100 F ceramic + 1 F ceramic, and Vin = 12 V for Vout = 5.0 V. Time scale: 2 s/div. Fig. 5.0V.8: Output voltage response for Vout = 5.0 V to negative load current step change from 10 A to 5 A with slew rate of -5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. Page 10 of 27 www.power-one.com 12 12 10 10 Load Current [Adc] Load Current [Adc] YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 0 0 20 30 40 50 60 70 80 20 90 30 40 50 60 70 80 90 Ambient Temperature [C] Ambient Temperature [C] Fig. 3.3V.1: Available load current vs. ambient temperature and airflow rates for Vout = 3.3 V converter mounted vertically with Vin = 12 V, and maximum MOSFET temperature 110 C. Fig. 3.3V.2: Available load current vs. ambient temperature and airflow rates for Vout = 3.3 V converter mounted horizontally with Vin = 12 V, and maximum MOSFET temperature 110 C. 3.0 1.00 2.5 Power Dissipation [W] Efficiency 0.95 0.90 0.85 14 V 12 V 9.6 V 0.80 2.0 1.5 1.0 14 V 12 V 9.6 V 0.5 0.0 0.75 0 2 4 6 8 10 0 12 4 6 8 10 12 Load Current [Adc] Load Current [Adc] Fig. 3.3V.3: Efficiency vs. load current and input voltage for Vout = 3.3 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. JUL 20, 2006 revised to OCT 18, 2006 2 Fig. 3.3V.4: Power loss vs. load current and input voltage for Vout = 3.3 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. Page 11 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Fig. 3.3V.5: Turn-on transient for Vout = 3.3 V with application of Vin at full rated load current (resistive) and 100 F external capacitance at Vin = 12 V. Top trace: Vin (10 V/div.); Bottom trace: output voltage (1 V/div.); Time scale: 2 ms/div. Fig. 3.3V.6: Output voltage ripple (20 mV/div.) at full rated load current into a resistive load with external capacitance 100 F ceramic + 1 F ceramic, and Vin = 12 V for Vout = 3.3 V. Time scale: 2 s/div. Fig. 3.3V.7: Output voltage response for Vout = 3.3 V to positive load current step change from 5 A to 10 A with slew rate of 5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. Fig. 3.3V.8: Output voltage response for Vout = 3.3 V to negative load current step change from 10 A to 5 A with slew rate of -5 A/s at Vin = 12 V. Top trace: output voltage 100 mV/div.); Bottom trace: load current (2 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. JUL 20, 2006 revised to OCT 18, 2006 Page 12 of 27 www.power-one.com 12 12 10 10 Load Current [Adc] Load Current [Adc] YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 0 0 20 30 40 50 60 70 80 20 90 30 Ambient Temperature [C] 50 60 70 80 90 Ambient Temperature [C] Fig. 2.5V.1: Available load current vs. ambient temperature and airflow rates for Vout = 2.5 V converter mounted vertically with Vin = 12 V, and maximum MOSFET temperature 110 C. Fig. 2.5V.2: Available load current vs. ambient temperature and airflow rates for Vout = 2.5 V converter mounted horizontally with Vin = 12 V, and maximum MOSFET temperature 110 C. 3.0 1.00 2.5 Power Dissipation [W] 0.95 Efficiency 40 0.90 0.85 14 V 12 V 9.6 V 0.80 2.0 1.5 1.0 14 V 12 V 9.6 V 0.5 0.0 0.75 0 2 4 6 8 10 0 12 4 6 8 10 12 Load Current [Adc] Load Current [Adc] Fig. 2.5V.3: Efficiency vs. load current and input voltage for Vout = 2.5 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. JUL 20, 2006 revised to OCT 18, 2006 2 Fig. 2.5V.4: Power loss vs. load current and input voltage for Vout = 2.5 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. Page 13 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Fig. 2.5V.5: Turn-on transient for Vout = 2.5 V with application of Vin at full rated load current (resistive) and 47 F external capacitance at Vin = 12 V. Top trace: Vin (10 V/div.); Bottom trace: output voltage (1 V/div.); Time scale: 2 ms/div. Fig. 2.5V.6: Output voltage ripple (20 mV/div.) at full rated load current into a resistive load with external capacitance 100 F ceramic + 1 F ceramic, and Vin = 12 V for Vout = 2.5 V. Time scale: 2 s/div. Fig. 2.5V.7: Output voltage response for Vout = 2.5 V to positive load current step change from 5 A to 10 A with slew rate of 5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. Fig. 2.5V.8: Output voltage response for Vout = 2.5 V to negative load current step change from 10 A to 5 A with slew rate of -5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. JUL 20, 2006 revised to OCT 18, 2006 Page 14 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A 12 12 10 Load Current [Adc] Load Current [Adc] 10 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 0 0 20 30 40 50 60 70 80 20 90 30 50 60 70 80 90 Ambient Temperature [C] Ambient Temperature [C] Fig. 2.0V.1: Available load current vs. ambient temperature and airflow rates for Vout = 2.0 V converter mounted vertically with Vin = 12 V, and maximum MOSFET temperature 110 C. 40 Fig. 2.0V.2: Available load current vs. ambient temperature and airflow rates for Vout = 2.0 V converter mounted horizontally with Vin = 12 V, and maximum MOSFET temperature 110 C. 3.0 1.00 2.5 Power Dissipation [W] Efficiency 0.95 0.90 0.85 14 V 12 V 9.6 V 0.80 2.0 1.5 1.0 14 V 12 V 9.6 V 0.5 0.0 0.75 0 2 4 6 8 10 0 12 JUL 20, 2006 revised to OCT 18, 2006 4 6 8 10 12 Load Current [Adc] Load Current [Adc] Fig. 2.0V.3: Efficiency vs. load current and input voltage for Vout = 2.0 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. 2 Fig. 2.0V.4: Power loss vs. load current and input voltage for Vout = 2.0 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. Page 15 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Fig. 2.0V.5: Turn-on transient for Vout = 2.0 V with application of Vin at full rated load current (resistive) and 100 F external capacitance at Vin = 12 V. Top trace: Vin (10 V/div.); Bottom trace: output voltage (1 V/div.); Time scale: 2 ms/div. Fig. 2.0V.6: Output voltage ripple (20 mV/div.) at full rated load current into a resistive load with external capacitance 100 F ceramic + 1 F ceramic, and Vin = 12 V for Vout = 2.0 V. Time scale: 2 s/div. Fig. 2.0V.7: Output voltage response for Vout = 2.0 V to positive load current step change from 5 A to 10 A with slew rate of 5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. Fig. 2.0V.8: Output voltage response for Vout = 2.0 V to negative load current step change from 10 A to 5 A with slew rate of -5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. JUL 20, 2006 revised to OCT 18, 2006 Page 16 of 27 www.power-one.com 12 12 10 10 Load Current [Adc] Load Current [Adc] YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 0 0 20 30 40 50 60 70 80 90 20 30 Ambient Temperature [C] 40 50 60 70 80 90 Ambient Temperature [C] Fig. 1.8V.1: Available load current vs. ambient temperature and airflow rates for Vout = 1.8 V converter mounted vertically with Vin = 12 V, and maximum MOSFET temperature 110 C. Fig. 1.8V.2: Available load current vs. ambient temperature and airflow rates for Vout = 1.8 V converter mounted horizontally with Vin = 12 V, and maximum MOSFET temperature 110 C. 3.0 1.00 2.5 Power Dissipation [W] Efficiency 0.95 0.90 0.85 14 V 12 V 9.6 V 0.80 2.0 1.5 1.0 14 V 12 V 9.6 V 0.5 0.0 0.75 0 2 4 6 8 10 0 12 4 6 8 10 12 Load Current [Adc] Load Current [Adc] Fig. 1.8V.3: Efficiency vs. load current and input voltage for Vout = 1.8 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. JUL 20, 2006 revised to OCT 18, 2006 2 Fig. 1.8V.4: Power loss vs. load current and input voltage for Vout = 1.8 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. Page 17 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Fig. 1.8V.5: Turn-on transient for Vout = 1.8 V with application of Vin at full rated load current (resistive) and 100 F external capacitance at Vin = 12 V. Top trace: Vin (10 V/div.); Bottom trace: output voltage (1 V/div.); Time scale: 2 ms/div. Fig. 1.8V.6: Output voltage ripple (20 mV/div.) at full rated load current into a resistive load with external capacitance 100 F ceramic + 1 F ceramic, and Vin = 12 V for Vout = 1.8 V. Time scale: 2 s/div. Fig. 1.8V.7: Output voltage response for Vout = 1.8 V to positive load current step change from 5 A to 10 A with slew rate of 5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. Fig. 1.8V.8: Output voltage response for Vout = 1.8 V to negative load current step change from 10 A to 5 A with slew rate of -5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. JUL 20, 2006 revised to OCT 18, 2006 Page 18 of 27 www.power-one.com 12 12 10 10 Load Current [Adc] Load Current [Adc] YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 0 0 20 30 40 50 60 70 80 90 20 30 Ambient Temperature [C] 50 60 70 80 90 Ambient Temperature [C] Fig. 1.5V.1: Available load current vs. ambient temperature and airflow rates for Vout = 1.5 V converter mounted vertically with Vin = 12 V, and maximum MOSFET temperature 110 C. Fig. 1.5V.2: Available load current vs. ambient temperature and airflow rates for Vout = 1.5 V converter mounted horizontally with Vin = 12 V, and maximum MOSFET temperature 110 C. 2.0 0.95 Power Dissipation [W] 0.90 Efficiency 40 0.85 0.80 14 V 12 V 9.6 V 0.75 1.5 1.0 14 V 12 V 9.6 V 0.5 0.0 0.70 0 2 4 6 8 10 0 12 4 6 8 10 12 Load Current [Adc] Load Current [Adc] Fig. 1.5V.3: Efficiency vs. load current and input voltage for Vout = 1.5 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. JUL 20, 2006 revised to OCT 18, 2006 2 Fig. 1.5V.4: Power loss vs. load current and input voltage for Vout = 1.5 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. Page 19 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Fig. 1.5V.5: Turn-on transient for Vout = 1.5 V with application of Vin at full rated load current (resistive) and 100 F external capacitance at Vin = 12 V. Top trace: Vin (10 V/div.); Bottom trace: output voltage (1 V/div.); Time scale: 2 ms/div. Fig. 1.5V.6: Output voltage ripple (20 mV/div.) at full rated load current into a resistive load with external capacitance 100 F ceramic + 1 F ceramic, and Vin = 12 V for Vout = 1.5 V. Time scale: 2 s/div. Fig. 1.5V.7: Output voltage response for Vout = 1.5 V to positive load current step change from 5 A to 10 A with slew rate of 5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (2 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. Fig. 1.5V.8: Output voltage response for Vout = 1.5 V to negative load current step change from 10 A to 5 A with slew rate of -5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (2 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. JUL 20, 2006 revised to OCT 18, 2006 Page 20 of 27 www.power-one.com 12 12 10 10 Load Current [Adc] Load Current [Adc] YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 0 0 20 30 40 50 60 70 80 90 20 30 Ambient Temperature [C] 50 60 70 80 90 Ambient Temperature [C] Fig. 1.2V.1: Available load current vs. ambient temperature and airflow rates for Vout = 1.2 V converter mounted vertically with Vin = 12 V, and maximum MOSFET temperature 110 C. Fig. 1.2V.2: Available load current vs. ambient temperature and airflow rates for Vout = 1.2 V converter mounted horizontally with Vin = 12 V, and maximum MOSFET temperature 110 C. 2.0 0.95 Power Dissipation [W] 0.90 Efficiency 40 0.85 0.80 14 V 12 V 9.6 V 0.75 1.5 1.0 14 V 12 V 9.6 V 0.5 0.0 0.70 0 2 4 6 8 10 0 12 Fig. 1.2V.3: Efficiency vs. load current and input voltage for Vout = 1.2 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. JUL 20, 2006 revised to OCT 18, 2006 2 4 6 8 10 12 Load Current [Adc] Load Current [Adc] Fig. 1.2V.4: Power loss vs. load current and input voltage for Vout = 1.2 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. Page 21 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Fig. 1.2V.5: Turn-on transient for Vout = 1.2 V with application of Vin at full rated load current (resistive) and 100 F external capacitance at Vin = 12 V. Top trace: Vin (10 V/div.); Bottom trace: output voltage (1 V/div.); Time scale: 5 ms/div. Fig. 1.2V.6: Output voltage ripple (20 mV/div.) at full rated load current into a resistive load with external capacitance 100 F ceramic + 1 F ceramic, and Vin = 12 V for Vout = 1.2 V. Time scale: 2 s/div. Fig. 1.2V.7: Output voltage response for Vout = 1.2 V to positive load current step change from 5 A to 10 A with slew rate of 5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. Fig. 1.2V.8: Output voltage response for Vout = 1.2 V to negative load current step change from 10 A to 5 A with slew rate of -5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. JUL 20, 2006 revised to OCT 18, 2006 Page 22 of 27 www.power-one.com 12 12 10 10 Load Current [Adc] Load Current [Adc] YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 0 0 20 30 40 50 60 70 80 90 20 30 Ambient Temperature [C] 50 60 70 80 90 Ambient Temperature [C] Fig. 1.0V.1: Available load current vs. ambient temperature and airflow rates for Vout = 1.0 V converter mounted vertically with Vin = 12 V, and maximum MOSFET temperature 110 C. Fig. 1.0V.2: Available load current vs. ambient temperature and airflow rates for Vout = 1.0 V converter mounted horizontally with Vin = 12 V, and maximum MOSFET temperature 110 C. 0.90 2.0 Power Dissipation [W] 0.85 Efficiency 40 0.80 0.75 14 V 12 V 9.6 V 0.70 0.65 1.5 1.0 14 V 12 V 9.6 V 0.5 0.0 0 2 4 6 8 10 12 0 Load Current [Adc] 4 6 8 10 12 Load Current [Adc] Fig. 1.0V.3: Efficiency vs. load current and input voltage for Vout = 1.0 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. JUL 20, 2006 revised to OCT 18, 2006 2 Fig. 1.0V.4: Power loss vs. load current and input voltage for Vout = 1.0 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. Page 23 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Fig. 1.0V.5: Turn-on transient for Vout = 1.0 V with application of Vin at full rated load current (resistive) and 100 F external capacitance at Vin = 12 V. Top trace: Vin (10 V/div.); Bottom trace: output voltage (1 V/div.); Time scale: 2 ms/div. Fig. 1.0V.6: Output voltage ripple (20 mV/div.) at full rated load current into a resistive load with external capacitance 100 F ceramic + 1 F ceramic, and Vin = 12 V for Vout = 1.0 V. Time scale: 2 s/div. Fig. 1.0V.7: Output voltage response for Vout = 1.0 V to positive load current step change from 5 A to 10 A with slew rate of 5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co =100 F ceramic. Time scale: 20 s/div. Fig. 1.0V.8: Output voltage response for Vout = 1.0 V to negative load current step change from 10 A to 5 A with slew rate of -5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. JUL 20, 2006 revised to OCT 18, 2006 Page 24 of 27 www.power-one.com 12 12 10 10 Load Current [Adc] Load Current [Adc] YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 8 6 500 LFM (2.5 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 30 LFM (0.15 m/s) 4 2 0 0 20 30 40 50 60 70 80 90 20 30 Ambient Temperature [C] 40 50 60 70 80 90 Ambient Temperature [C] Fig. 0.7525V.1: Available load current vs. ambient temperature and airflow rates for Vout = 0.7525 V converter mounted vertically with Vin = 12 V, and maximum MOSFET temperature 110 C. Fig. 0.7525V.2: Available load current vs. ambient temperature and airflow rates for Vout = 0.7525 V converter mounted horizontally with Vin = 12 V, and maximum MOSFET temperature 110 C. 0.90 2.0 Power Dissipation [W] Efficiency 0.85 0.80 0.75 14 V 12 V 9.6 V 0.70 1.5 1.0 14 V 12 V 9.6 V 0.5 0.65 0 2 4 6 8 10 12 0.0 0 Load Current [Adc] 2 4 6 8 10 12 Load Current [Adc] Fig. 0.7525V.3: Efficiency vs. load current and input voltage for Vout = 0.7525 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. JUL 20, 2006 revised to OCT 18, 2006 Fig. 0.7525V.4: Power loss vs. load current and input voltage for Vout = 0.7525 V converter mounted vertically with air flowing at a rate of 200 LFM (1 m/s) and Ta = 25 C. Page 25 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Fig. 0.7525V.5: Turn-on transient for Vout = 0.7525 V with application of Vin at full rated load current (resistive) and 100 F external capacitance at Vin = 12 V. Top trace: Vin (10 V/div.); Bottom trace: output voltage (0.5 V/div.); Time scale: 2 ms/div. Fig. 0.7525V.6: Output voltage ripple (20 mV/div.) at full rated load current into a resistive load with external capacitance 100 F ceramic + 1 F ceramic, and Vin = 12 V for Vout = 0.7525 V. Time scale: 2 s/div. Fig. 0.7525V.7: Output voltage response for Vout = 0.7525 V to positive load current step change from 5 A to 10 A with slew rate of 5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co =100 F ceramic. Time scale: 20 s/div. Fig. 0.7525V.8: Output voltage response for Vout = 0.7525 V to negative load current step change from 10 A to 5 A with slew rate of -5 A/s at Vin = 12 V. Top trace: output voltage (100 mV/div.); Bottom trace: load current (5 A/div.). Co = 100 F ceramic. Time scale: 20 s/div. JUL 20, 2006 revised to OCT 18, 2006 Page 26 of 27 www.power-one.com YS12S10 DC-DC Converter Data Sheet 9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 10 A Physical Information YS12S Pinout (Surface-mount) Pad/Pin Connections 2 3 4 Pad/Pin # 1 2 3 4 5 6 5 1(*) TOP VIEW 6 Function ON/OFF SENSE TRIM Vout GND Vin YS12S Platform Notes * * * * * * (*) PIN # 1 ROTATED 90 SIDE VIEW All dimensions are in inches [mm] Connector Material: Copper Connector Finish: Gold over Nickel Converter Weight: 0.22 oz [6.12 g] Converter Height: 0.327" Max., 0.301" Min. Recommended Surface-mount Pads: Min. 0.080" X 0.112" [2.03 x 2.84] Converter Part Numbering Scheme Product Series Input Voltage Mounting Scheme Rated Load Current YS 12 S 10 Y-Series 9.6 to14 VDC S Surfacemount 10 A (0.7525 to 5.5 VDC) Enable Logic - Environmental 0 0 Standard (Positive Logic) No Suffix RoHS lead-solder-exempt compliant D Opposite of Standard (Negative Logic) G RoHS compliant for all six substances The example above describes P/N YS12S10-0: 9.6 to 14 VDC input, surface-mount, 10 A at 0.7525 to 5.5 VDC output, standard positive logic, and Eutectic Tin/Lead solder. Please consult factory regarding availability of a specific version. NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional president of Power-One, Inc. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. JUL 20, 2006 revised to OCT 18, 2006 Page 27 of 27 www.power-one.com