Advanced Power Electronics Corp. APU8836 300mA ULTRA LOW DROPOUT POSITIVE ADJUSTABLE AND FIXED REGULATORS DESCRIPTION FEATURES SOT-23-5 Package Stable with 2.2mF Ceramic Capacitor 2% Voltage Reference Accuracy Only 320mV Dropout at 300mA and 170mV Dropout at 150mA 5mA Quiescent Current in Shutdown Current Limit and Thermal Shutdown Logic Input Enable Pin RoHS Compliant The APU8836 device is an efficient linear voltage regulator with better than 2% initial voltage accuracy, very low dropout voltage and very low ground current designed especially for hand held, battery powered applications. Other features of the device are: TTL compatible enable/ shutdown control input, current limiting and thermal shutdown. The APU8836 is available in adjustable output voltage versions in a small SOT-23 5-Pin package. APPLICATIONS Laptop, Notebook & Palmtop computers Battery Powered Equipments PCMCIA Vcc & Vpp Regulator Consumer Electronics High Efficiency Linear Power Supplies TYPICAL APPLICATION VIN VIN VO VOUT C1 2.2uF R1 C2 2.2uF Gnd ( Vo = 0.8 3 1+ R1 R2 ) R2 SD Enable EN Adj Figure 1 - Typical application of the APU8836 ajustable voltage regulator. PACKAGE ORDER INFORMATION APU8836X Package Y5 : SOT-23-5L Y5R : SOT-23-5L Data and specifications subject to change without notice. 1 201206215 Advanced Power Electronics Corp. APU8836 ABSOLUTE MAXIMUM RATINGS Input Voltage (V IN) ..................................................... 10V Enable Input Voltage ................................................. 10V Storage Temperature Range ....................................... -65C To 150C Operating Junction Temperature Range ...................... 0C To 150C o o Junction Temperature Range ...................... 0 C To 125 C PACKAGE INFORMATION TOP VIEW SOT-23-5L VIN GND EN APU8836Y5 VOUT ADJ Rthja=256/W TOP VIEW SOT-23-5L EN GND VIN APU8836Y5R ADJ VOUT Rthja=256/W ELECTRICAL SPECIFICATIONS Unless otherwise specified, these specifications apply over CIN=Co=2.2mF, Io=100mA, VIN(MIN)=2.5V(Adjustable devices), VOUT=VFB(for adjustable version only), VEN=2V and TA=25oC. Typical values refer to TA=25oC. Low duty cycle pulse testing is used which keeps junction and case temperatures equal to the ambient temperature. PARAMETER Reference Voltage SYM Vo Line Regulation Load Regulation (Note 1) DVI DVL Dropout Voltage (Note 2) DVI(O) Ground Current (Note 3) Ground Current-SD Activated Current Limit Thermal Regulation Adjust Pin Current Enable Pin Input LO Voltage Enable Pin Input HI Voltage Enable Pin Input LO Current Enable Pin Input HI Current TEST CONDITION IQ IQ(SD) ICL DVP IADJ VEN(L) VEN(H) MIN TYP -2 Vo + 1V<VIN<10V 1mA<Io<300mA MAX UNITS 2 % 0.005 1.5 %/V % Io=100mA 10 mV Io=150mA 170 Io=300mA VEN =2V, Io=1000mA 320 120 VEN =0V to 0.8V or Open Vo=0V VIN=10V, Io=150mA, 10ms Pulse VIN=2.5V, Vo=VADJ Regulator OFF Regulator ON VEN(L) =0V VEN(H)=2V 320 mA 5 420 0.05 0.1 0.8 2 0.1 20 mA mA %/W mA V V mA mA 2 Advanced Power Electronics Corp. Note 1: Low duty cycle pulse testing with Kelvin connections is required in order to maintain accurate data. Note 2: Dropout voltage is defined as the minimum differential voltage between VIN and VOUT required to maintain regulation at VOUT. It is measured when the output voltage drops below its nominal value. APU8836 Note 3: Ground current is the regulator quiescent current plus the pass transistor current. The total current from the supply is the sum of the load current plus the ground pin current. PIN DESCRIPTIONS PIN SYMBOL VIN PIN DESCRIPTION The input pin of the regulator. Typically a large storage capacitor is connected from this pin to ground to insure that the input voltage does not sag below the minimum drop out voltage during the load transient response. This pin must always be higher than VOUT by at least the amount of the dropout voltage and some margin in order for the device to regulate properly. Gnd Ground pin. This pin must be connected to the lowest potential in the system and all other pins must be at higher potential with respect to this pin. En Enable pin. A low signal or left open on this pin shuts down the output. This pin must be tied HI or to VIN for normal operation. Adj (Adjustable Only) A resistor divider from this pin to the VOUT pin and ground sets the output voltage. To minimize the error due to the error amplifier, select the values of the resistor dividers to be less than 10KV. VOUT The output of the regulator. A minimum of 2.2mF with max ESR of 1V capacitor must be connected from this pin to ground to insure stability. 3 Advanced Power Electronics Corp. APU8836 BLOCK DIAGRAM VIN VOUT Adj THERMAL SHUTDOWN 0.8V + CURRENT LIMIT Gnd En Figure 2 - APU8836 Adjustable output block diagram. 4 Advanced Power Electronics Corp. APU8836 TYPICAL PERFORMANCE CHARACTERISTICS Current Limit (VOUT vs. IOUT) Load Transient IOUT=0mA ~ 150mA VOUT VOUT IOUT IOUT VIN=3.5V, R1/R2=2K/1K, CIN=COUT=2.2uF(EL Cap.) VIN=3.5V, R1/R2=2K/1K, CIN=COUT=2.2uF(EL Cap.) Ton=Toff=1mS, Rising=Falling=0.25A/uS Power Sequence Power ON (RL=16) Power OFF (RL=16) VIN VEN VIN VOUT VEN IOUT VOUT IOUT VIN=VEN=3.5V, R1/R2=2K/1K, CIN=COUT=2.2uF(EL Cap.) Power Sequence Power ON (RL=8) Power OFF (RL=8) VIN VIN VEN VOUT VEN VOUT IOUT IOUT VIN=VEN=3.5V, R1/R2=2K/1K, CIN=COUT=2.2uF(EL Cap.) 5 Advanced Power Electronics Corp. APU8836 TYPICAL PERFORMANCE CHARACTERISTICS Enable ON Sequence (RL=16) Enable OFF Sequence (RL=16) VEN=0V to 2V VEN=2V to 0V VIN VEN VIN VEN VOUT VOUT IOUT IOUT VIN=3.5V, R1/R2=2K/1K, CIN=COUT=2.2uF(EL Cap.) Enable ON Sequence (RL=8) Enable OFF Sequence (RL=8) VEN=0V to 2V VEN=2V to 0V VIN VIN VEN VEN VOUT VOUT IOUT IOUT VIN=3.5V, R1/R2=2K/1K, CIN=COUT=2.2uF(EL Cap.) 6 Advanced Power Electronics Corp. APU8836 MARKING INFORMATION SOT-23-5L XXSS Part Number : RS : APU8836Y5 rS : APU8836Y5R Date Code : SS 7