www.fairchildsemi.com RC1584 7A Adjustable/Fixed Low Dropout Linear Regulator Features Description * * * * * * The RC1584 and RC1584-1.5 are low dropout three-terminal regulators with 7A output current capability. These devices have been optimized for low voltage applications including VTT bus termination, where transient response and minimum input voltage are critical. The RC1584 is ideal for low voltage microprocessor applications requiring a regulated output from 1.5V to 3.6V with an input supply of 5V or less. The RC1584-1.5 offers fixed 1.5V with 7A current capability for GTL+ bus VTT termination. Fast transient response Low dropout voltage at up to 7A Load regulation: 0.05% typical Trimmed current limit On-chip thermal limiting Standard TO-220, TO-263 and TO-263 center cut packages Applications * Pentium(R) Class GTL+ bus supply * Low voltage logic supply * Post regulator for switching supply Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperatures. The RC1584 and RC1584-1.5 are available in the industrystandard TO-220, TO-263 and TO-263 center cut power packages. Typical Applications VIN VIN = 3.3V 10F + RC1584 VOUT 1.5V at 7A + ADJ 124 22F 24.9 RC1584-1.5 VIN VOUT VIN = 3.3V + 10F GND 1.5V at 7A + 22F 65-1584-16 Pentium is a registered trademark of Intel Corporation. REV. 1.0.5 7/13/00 RC1584 PRODUCT SPECIFICATION Pin Assignments RC1584M-1.5 RC1584M FRONT VIEW FRONT VIEW RC1584T RC1584T-1.5 FRONT VIEW FRONT VIEW 1 1 2 3 GND OUT IN 1 2 2 3 1 2 3 3 ADJ OUT IN ADJ OUT IN 3-Lead Plastic TO-263 JC = 3C/W* GND OUT IN 3-Lead Plastic TO-220 JC = 3C/W RC1584MC-1.5 RC1584MC FRONT VIEW FRONT VIEW Tab is Out. 1 GND 2 3 1 IN ADJ 2 3 IN 3-Lead Plastic TO-263 Center Cut JC = 3C/W* 65-1584-02 * JA can vary from 20C/W to >40C/W with various mounting techniques. Absolute Maximum Ratings Parameter Min. Max. Unit 7 V 0 125 C -65 150 C 300 C VIN Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10 sec.) 2 REV. 1.0.5 7/13/00 PRODUCT SPECIFICATION RC1584 Electrical Characteristics Tj = 25C unless otherwise specified. The * denotes specifications which apply over the specified operating temperature range. Parameter Conditions Min. Typ. Max Units Reference Voltage 1.5V (VIN - VOUT) 5.75V, 10mA IOUT 7A * 1.225 (-2%) 1.250 1.275 (+2%) V Output Voltage4 3.3V VIN 7V 10mA IOUT 7A * 1.47 1.5 1.53 V Line Regulation1, 2 (VOUT + 1.5V) VIN 7V, IOUT = 10mA * 0.005 0.2 % Load Regulation1, 2 (VIN - VOUT) = 3V 10mA IOUT 7A * 0.05 0.5 % Dropout Voltage VREF = 1%, IOUT = 7A * 1.150 1.300 V Current Limit (VIN - VOUT) = 2V * 3 7.1 8 A Adjust Pin Current3 * 35 120 A Adjust Pin Current Change3 1.5V (VIN - VOUT) 5.75V, 10mA IOUT 7A * 0.2 5 A Minimum Load Current 1.5V (VIN - VOUT) 5.75V * Quiescent Current VIN = 5V * Ripple Rejection f = 120Hz, COUT = 22F Tantalum, (VIN - VOUT) = 3V, IOUT = 7A Thermal Regulation TA = 25C, 30ms pulse mA 4 60 13 72 0.004 * Temperature Stability 10 mA dB 0.02 0.5 %/W % Long-Term Stability TA = 125C, 1000 hrs. 0.03 RMS Output Noise (% of VOUT) TA = 25C, 10Hz f 10kHz 0.003 % Thermal Resistance, Junction to Case TO-220 3 C/W TO-263 3 C/W 150 C Thermal Shutdown 1.0 % Notes: 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. 2. Line and load regulation are guaranteed up to the maximum power dissipation (18W). Power dissipation is determined by input/output differential and the output currrent. Guaranteed maximum output power will not be available over the full input/ output voltage range. 3. RC1584 only. 4. RC1584-1.5 only. REV. 1.0.5 7/13/00 3 RC1584 PRODUCT SPECIFICATION Typical Performance Characteristics 0.10 1.2 1.1 T=0C 0.9 T=125C T=25C 0.8 0.7 0.6 0.5 0 1 2 3 4 5 6 0.05 0 -0.05 -0.10 -0.15 -0.20 -75 -50 -25 7 3.65 1.265 3.60 1.260 1.255 1.250 1.245 1.240 1.235 1.230 25 50 75 100 125 150 175 REFERENCE VOLTAGE (V) 3.70 1.270 0 3.50 3.45 3.40 3.35 3.30 Note: 1. RC1584 Only 3.25 3.20 -75 -50 -25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (C) Figure 3. Reference Voltage vs. Temperature Figure 4. Output Voltage vs. Temperature 5 100 Note: 1. RC1584 Only 3 2 1 0 -75 -50 -25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (C) Figure 5. Minimum Load Current vs. Temperature 80 70 60 50 40 30 20 65-1584-08 4 ADJUST PIN CURRENT (A) 90 65-1584-07 MINIMUM LOAD CURRENT (mA) VOUT SET WITH 1% RESISTORS VOUT = 3.6V1 3.55 JUNCTION TEMPERATURE (C) 4 25 50 75 100 125 150 175 Figure 2. Load Regulation vs. Temperature 1.275 65-1584-05 REFERENCE VOLTAGE (V) Figure 1. Dropout Voltage vs. Output Current 1.225 -75 -50 -25 0 JUNCTION TEMPERATURE (C) OUTPUT CURRENT (A) 65-1584-06 1.0 I = 7A 65-1584-04 1.3 65-1584-03 DROPOUT VOLTAGE (V) 1.4 OUTPUT VOLTAGE DEVIATION (%) 1.5 10 0 -75 -50 -25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (C) Figure 6. Adjust Pin Current vs. Temperature REV. 1.0.5 7/13/00 PRODUCT SPECIFICATION RC1584 Typical Performance Characteristics (continued) 10 90 8 7 6 -75 -50 -25 0 25 50 75 100 125 150 175 70 60 50 40 30 20 10 0 10 (VIN - VOUT) 3V 0.5V VRIPPLE 2V IOUT = 7A 100 JUNCTION TEMPERATURE (C) 1K 65-1584-10 RIPPLE REJECTIONS (dB) 9 65-1584-09 SHORT-CIRCUIT CURRENT (A) 80 10K 100K FREQUENCY (Hz) Figure 7. Short-Circuit Current vs. Temperature Figure 8. Ripple Rejection vs. Frequency 15 10 65-1584-11 POWER (W) 20 5 0 50 60 70 80 90 100 110 120 130 140 150 CASE TEMPERATURE (C) Figure 9. Maximum Power Dissipation REV. 1.0.5 7/13/00 5 RC1584 PRODUCT SPECIFICATION Applications Information General The RC1584 and RC1584-1.5 are three-terminal regulators optimized for GTL+ VTT termination applications. These devices are short-circuit protected, and offer thermal shutdown to turn off the regulator when the junction temperature exceeds about 150C. The RC1584 series provides low dropout voltage and fast transient response. Frequency compensation uses capacitors with low ESR while still maintaining stability. This is critical in addressing the needs of low voltage high speed microprocessor buses like GTL+. D1 1N4002 (OPTIONAL) RC1584 RC1587 VIN IN + C1 10F OUT ADJ + R1 VOUT C2 22F + CADJ R2 Stability The RC1584 series require an output capacitor as a part of the frequency compensation. It is recommended to use a 22F solid tantalum or a 100F aluminum electrolytic on the output to ensure stability. The frequency compensation of these devices optimizes the frequency response with low ESR capacitors. In general, it is suggested to use capacitors with an ESR of <1. It is also recommended to use bypass capacitors such as a 22F tantalum or a 100F aluminum on the adjust pin of the RC1584 for low ripple and fast transient response. When these bypassing capacitors are not used at the adjust pin, larger values of output capacitors provide equally good results. D1 1N4002 (OPTIONAL) RC1587-1.5, RC1584-1.5 -3.3 VIN C1 10F IN + OUT GND + VOUT C2 22F 65-1584-13 65-1587-13 Figure 10. Optional Protection Protection Diodes In normal operation, the RC1584 series does not require any protection diodes. For the RC1584, internal resistors limit internal current paths on the adjust pin. Therefore, even with bypass capacitors on the adjust pin, no protection diode is needed to ensure device safety under shortcircuit conditions. A protection diode between the input and output pins is usually not needed. An internal diode between the input and output pins on the RC1584 series can handle microsecond surge currents of 50A to 100A. Even with large value output capacitors it is difficult to obtain those values of surge currents in normal operation. Only with large values of output capacitance, such as 1000F to 5000F, and with the input pin instantaneously shorted to ground can damage occur. A crowbar circuit at the input can generate those levels of current; a diode from output to input is then recommended, as shown in Figure 10. Usually, normal power supply cycling or system "hot plugging and unplugging" will not generate current large enough to do any damage. The adjust pin can be driven on a transient basis 7V with respect to the output, without any device degradation. As with any IC regulator, exceeding the maximum input-tooutput voltage differential causes the internal transistors to break down and none of the protection circuitry is then functional. 6 Ripple Rejection In applications that require improved ripple rejection, a bypass capacitor from the adjust pin of the RC1584 to ground reduces the output ripple by the ratio of VOUT/1.25V. The impedance of the adjust pin capacitor at the ripple frequency should be less than the value of R1 (typically in the range of 100 to 120) in the feedback divider network in Figure 10. Therefore, the value of the required adjust pin capacitor is a function of the input ripple frequency. For example, if R1 equals 100 and the ripple frequency equals 120Hz, the adjust pin capacitor should be 22F. At 10kHz, only 0.22F is needed. Output Voltage The RC1584 regulator develops a 1.25V reference voltage between the output pin and the adjust pin (see Figure 11). Placing a resistor R1 between these two terminals causes a constant current to flow through R1 and down through R2 to set the overall output voltage. Normally, this current is the specified minimum load current of 10mA. The current out of the adjust pin adds to the current from R1 and is typically 35A. Its output voltage contribution is small and only needs consideration when very precise output voltage setting is required. REV. 1.0.5 7/13/00 PRODUCT SPECIFICATION RC1584 RC1584 VIN OUT IN + C1 10F ADJ + VREF IADJ 35A R1 RC1584 VOUT C2 22F VIN IN OUT ADJ R1* R2 VOUT = VREF (1 + R2/R1) + IADJ (R2) RL 65-1584-14 Figure 11. Basic Regulator Circuit * CONNECT R1 TO CASE CONNECT R2 TO LOAD Load Regulation For fixed voltage devices, negative side sensing is a true Kelvin connection with the ground pin of the device returned to the negative side of the load. This is illustrated in Figure 12. RC1584-1.5 IN RP PARASITIC LINE RESISTANCE OUT GND RL 65-1584-17 Figure 12. Connection for Best Load Regulation For adjustable voltage devices, negative side sensing is a true Kelvin connection with the bottom of the output divider returned to the negative side of the load. The best load regulation is obtained when the top of resistor divider R1 connects directly to the regulator output and not to the load. Figure 13 illustrates this point. If R1 connects to the load, then the effective resistance between the regulator and the load would be: RP x (1 + R2/R1), RP = Parasitic Line Resistance The connection shown in Figure 13 does not multiply RP by the divider ratio. As an example, RP is about four milliohms per foot with 16-gauge wire. This translates to 4mV per foot at 1A load current. At higher load currents, this drop represents a significant percentage of the overall regulation. It is important to keep the positive lead between the regulator and the load as short as possible and to use large wire or PC board traces. REV. 1.0.5 7/13/00 R2* 65-1584-15 It is not possible to provide true remote load sensing because the RC1584 series are three-terminal devices. Load regulation is limited by the resistance of the wire connecting the regulators to the load. Load regulation per the data sheet specification is measured at the bottom of the package. VIN RP PARASITIC LINE RESISTANCE Figure 13. Connection for Best Load Regulation Thermal Considerations The RC1584 series protect themselves under overload conditions with internal power and thermal limiting circuitry. However, for normal continuous load conditions, do not exceed maximum junction temperature ratings. It is important to consider all sources of thermal resistance from junction-to-ambient. These sources include the junction-to-case resistance, the case-to-heat sink interface resistance, and the heat sink resistance. Thermal resistance specifications have been developed to more accurately reflect device temperature and ensure safe operating temperatures. For example, look at using an RC1584T to generate 7A @ 1.5V 2% from a 3.3V source (3.135V to 3.465V). Assumptions: * * * * * VIN = 3.465V worst case VOUT = 1.47V worst case IOUT = 7A continuous TA = 40C Case-to-Ambient = 3C/W (assuming both a heatsink and a thermally conductive material) The power dissipation in this application is: PD = (VIN - VOUT) * (IOUT) = (3.465 - 1.47) * (7) = 13.97W From the specification table: TJ = TA + (PD) * (Case-to-Ambient + JC) = 40 + (13.97) * (3 + 3) = 124C The junction temperature is below the maximum rating. 7 RC1584 PRODUCT SPECIFICATION Junction-to-case thermal resistance is specified from the IC junction to the bottom of the case directly below the die. This is the lowest resistance path for heat flow. Proper mounting ensures the best thermal flow from this area of the package to the heat sink. Use of a thermally conductive material at the case-to-heat sink interface is recommended. Use a thermally conductive spacer if the case of the device must be electrically isolated and include its contribution to the total thermal resistance. The cases of the RC1584 series are directly connected to the output of the device. U1 RC1584 VIN 3.3V + C1 10F VOUT 1.5V VOUT VIN R1 124 ADJ + + C3 100F R2 24.9 C2 100F 65-1584-18 Figure 14. Application Circuit (RC1584) Table 1. Bill of Materials for Application Circuit for the RC1584 Item C1 Quantity Manufacturer Part Number 1 Xicon L10V10 L10V100 Description 10F, 10V Aluminum C2, C3 2 Xicon R1 1 Generic 124, 1% 100F, 10V Aluminum R2 1 Generic 24.9, 1% U1 1 Fairchild RC1584T 7A Regulator U1 RC1584-1.5 VIN 3.3V VIN C1 10F + VOUT 1.5V VOUT GND + C3 100F 65-1584-19 Figure 15. Application Circuit (RC1584-1.5) Table 2. Bill of Materials for Application Circuit for the RC1584-1.5 Item Quantity Manufacturer Part Number C1 1 Xicon L10V10 10F, 10V Aluminum C3 1 Xicon L10V100 100F, 10V Aluminum U1 1 Fairchild RC1584T-1.5 8 Description 7A Regulator REV. 1.0.5 7/13/00 PRODUCT SPECIFICATION RC1584 Mechanical Dimensions 3-Lead TO-263 Package Symbol Inches Millimeters Notes Min. Max. Min. Max. A b b2 c2 D E e .160 .020 .190 .036 4.06 0.51 4.83 0.91 L L1 L2 R .575 .090 -- .017 0 .049 .051 .045 .055 .340 .380 .380 .405 .100 BSC .625 .110 .055 .019 8 1.25 1.30 1.14 1.40 8.64 9.65 9.65 10.29 2.54 BSC 14.61 2.29 -- 0.43 0 Notes: 1. Dimensions are exclusive of mold flash and metal burrs. 2. Standoff-height is measured from lead tip with ref. to Datum -B-. 3. Foot length is measured with ref. to Datum -A- with lead surface (at inner R). 4. Dimensiuon exclusive of dambar protrusion or intrusion. 5. Formed leads to be planar with respect to one another at seating place -C-. 15.88 2.79 1.40 0.78 8 E @PKG/ @HEATSINK L2 c2 D E-PIN L R (2 PLCS) b2 L1 b e -B- -A- A -C- REV. 1.0.5 7/13/00 9 RC1584 PRODUCT SPECIFICATION Mechanical Dimensions (continued) 3-Lead TO-263 Center Cut Package Symbol Inches Millimeters Notes Min. Max. Min. Max. A b b2 c2 D E e .160 .020 .190 .036 4.06 0.51 4.83 0.91 L L1 L2 .575 .090 -- .050 .017 0 .049 .051 .045 .055 .340 .380 .380 .405 .100 BSC L3 R .625 .110 .055 .070 .019 8 1.25 1.30 1.14 1.40 8.64 9.65 9.65 10.29 2.54 BSC 14.61 2.29 -- 1.27 0.43 0 Notes: 1. Dimensions are exclusive of mold flash and metal burrs. 2. Standoff-height is measured from lead tip with ref. to Datum -B-. 3. Foot length is measured with ref. to Datum -A- with lead surface (at inner R). 4. Dimensiuon exclusive of dambar protrusion or intrusion. 5. Formed leads to be planar with respect to one another at seating place -C-. 15.88 2.79 1.40 1.78 0.78 8 E @PKG/ @HEATSINK L2 c2 D E-PIN L R (2 PLCS) b2 L1 L3 b e -B- -A- A -C- 10 REV. 1.0.5 7/13/00 PRODUCT SPECIFICATION RC1584 Mechanical Dimensions (continued) 3-Lead TO-220 Package Inches Symbol Min. A b b1 c1 oP D E e Millimeters Max. Min. .140 .190 .015 .040 .045 .070 .014 .022 .139 .161 .560 .650 .380 .420 .090 .110 .190 .210 .045 -- .020 .055 .230 .270 .080 .115 .500 .580 .250 BSC .100 .135 3 7 e1 e3 F H1 J1 L L1 Q Notes Max. 3.56 4.83 .38 1.02 1.14 1.78 .36 .56 3.53 4.09 14.22 16.51 9.65 10.67 2.29 2.79 4.83 5.33 1.14 -- .51 1.40 5.94 6.87 2.04 2.92 12.70 14.73 6.35 BSC 2.54 3.43 3 7 Notes: 1. Dimension c1 apply for lead finish. H1 Q L e3 b1 e e1 E b L1 E-PIN oP (5X) c1 A J1 D REV. 1.0.5 7/13/00 F 11 RC1584 PRODUCT SPECIFICATION Ordering Information Product Number Package RC1584M TO-263 RC1584MC TO-263 center cut RC1584T TO-220 RC1584M-1.5 TO-263 RC1584MC-1.5 TO-263 center cut RC1584T-1.5 TO-220 LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 7/13/00 0.0m 001 Stock#DS30001584 1998 Fairchild Semiconductor Corporation Product Folder - Fairchild P/N RC1584x15 - 8A Fixed 1.5V Low Dropout Voltage Regulator (LDO) SEARCH | Parametric | Cross Reference space Fairchild Semiconductor space GO space space Product Folders and Datasheets space space space >> Find products >> Home find products space space space RC1584x15 Products groups 8A Fixed 1.5V Low Dropout Voltage Analog and Mixed Regulator (LDO) Signal Discrete Datasheet Contents Interface General description | Features | Applications | Download this Logic datasheet Product status/pricing/packaging space Microcontrollers PDF Non-Volatile Memory General description spaceOptoelectronics e-mail this datasheet Markets and [Eapplications mail] The RC1584 and RC1584-1.5 are low dropout New products three-terminal regulators with 7A output This pagePrint version Product selection and current capability. These devices have been optimized for low voltage applications parametric search including VTT bus termination, where Cross-reference transient response and minimum input voltage search are critical. The RC1584 is ideal for low voltage microprocessor applications requiring a technical information regulated output from 1.5V to 3.6V with an input supply of 5V or less. The RC1584-1.5 buy products offers fixed 1.5V with 7A current capabil-ity technical support for GTL+ bus VTT termination. Current limit is trimmed to ensure specified my Fairchild output current and controlled short-circuit current. On-chip thermal limiting provides company protection against any combination of overload and ambient temperature that would create excessive junction temperatures. The RC1584 and RC1584-1.5 are available in the industry-standard TO-220, TO-263 and TO- space 263 center cut power packages. back to top Features Fast transient response Low dropout voltage at up to 7A Load regulation: 0.05% typical Trimmed current limit On-chip thermal limiting Standard TO-220, TO-263 and TO-263 center cut packages file:///C|/PDF/RC1584x15.html (1 of 2) [27-Jul-02 10:44:11 AM] Application notes Related Links Request samples Dotted line How to order products Dotted line Product Change Notices (PCNs) Dotted line Support Dotted line Distributor and field sales representatives Dotted line Quality and reliability Dotted line Design tools Product Folder - Fairchild P/N RC1584x15 - 8A Fixed 1.5V Low Dropout Voltage Regulator (LDO) back to top Applications Pentium(R) Class GTL+ bus supply Low voltage logic supply Post regulator for switching supply back to top Product status/pricing/packaging Product Product status Pricing* Package type Leads Package marking Packing method TO-220AB RC1584T15 Full Production $0.70 RC1584M15 Full Production $0.74 TO-263(D2PAK) 3 $Y&Z&2&T 1584T15 RAIL 3 $Y&Z&2&T 1584M15 C RAIL * 1,000 piece Budgetary Pricing back to top space Home | Find products | Technical information | Buy products | Support | Company | Contact us | Site index | Privacy policy space (c) Copyright 2002 Fairchild Semiconductor space file:///C|/PDF/RC1584x15.html (2 of 2) [27-Jul-02 10:44:11 AM] space Product Folder - Fairchild P/N RC1584 - 7A Adjustable Low Dropout Voltage Regulator (LDO) SEARCH | Parametric | Cross Reference space Fairchild Semiconductor space GO space space Product Folders and Datasheets space space space >> Find products >> Home find products space space space RC1584 Products groups 7A Adjustable Low Dropout Voltage Analog and Mixed Regulator (LDO) Signal Discrete Datasheet Contents Interface General description | Features | Applications | Download this Logic datasheet Product status/pricing/packaging space Microcontrollers PDF Non-Volatile Memory General description spaceOptoelectronics e-mail this datasheet Markets and [Eapplications mail] The RC1584 and RC1584-1.5 are low dropout New products three-terminal regulators with 7A output This pagePrint version Product selection and current capability. These devices have been optimized for low voltage applications parametric search including VTT bus termination, where Cross-reference transient response and minimum input voltage search are critical. The RC1584 is ideal for low voltage microprocessor applications requiring a technical information regulated output from 1.5V to 3.6V with an input supply of 5V or less. The RC1584-1.5 buy products offers fixed 1.5V with 7A current capabil-ity technical support for GTL+ bus VTT termination. Current limit is trimmed to ensure specified my Fairchild output current and controlled short-circuit current. On-chip thermal limiting provides company protection against any combination of overload and ambient temperature that would create excessive junction temperatures. The RC1584 and RC1584-1.5 are available in the industry-standard TO-220, TO-263 and TO- space 263 center cut power packages. back to top Features Fast transient response Low dropout voltage at up to 7A Load regulation: 0.05% typical Trimmed current limit On-chip thermal limiting Standard TO-220, TO-263 and TO-263 center cut packages file:///C|/PDF/RC1584.html (1 of 2) [27-Jul-02 10:44:13 AM] Application notes Related Links Request samples Dotted line How to order products Dotted line Product Change Notices (PCNs) Dotted line Support Dotted line Distributor and field sales representatives Dotted line Quality and reliability Dotted line Design tools Product Folder - Fairchild P/N RC1584 - 7A Adjustable Low Dropout Voltage Regulator (LDO) back to top Applications Pentium(R) Class GTL+ bus supply Low voltage logic supply Post regulator for switching supply back to top Product status/pricing/packaging Product Product status Pricing* Package type RC1584M Full Production $0.74 TO-263(D2PAK) RC1584T Full Production $0.70 RC1584MT Full Production Leads Package marking Packing method TO-220AB $0.74 TO-263(D2PAK) 3 $Y&Z&2&T RC1584M C RAIL 3 $Y&Z&2&T RC1584T RAIL 3 $Y&Z&2&T RC1584M C TAPE REEL * 1,000 piece Budgetary Pricing back to top space Home | Find products | Technical information | Buy products | Support | Company | Contact us | Site index | Privacy policy space (c) Copyright 2002 Fairchild Semiconductor space file:///C|/PDF/RC1584.html (2 of 2) [27-Jul-02 10:44:13 AM] space