APU8836_14 A-POWER | Alldatasheet

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Technical content

1Data and specifications subject to change without notice.

DESCRIPTION

The APU8836 device is an efficient linear voltage regula- tor 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 shut- down. The APU8836 is available in adjustable output voltage versions in a small SOT-23 5-Pin package. 300mA ULTRA LOW DROPOUT POSITIVE ADJUSTABLE AND FIXED REGULATORS 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 TYPICAL APPLICATION Figure 1 - Typical application of the APU8836 ajustable voltage regulator.

APPLICATIONS

Laptop, Notebook & Palmtop computers Battery Powered Equipments PCMCIA Vcc & Vpp Regulator Consumer Electronics High Efficiency Linear Power Supplies

FEATURES

2.2uF C2 2.2uF SD Enable VOUT Adj VIN Gnd EN Vo = 0.8 3 1+ R1 R2( ) Advanced Power Electronics Corp. 201206215 APU8836X Y5 : SOT-23-5L Package Y5R : SOT-23-5L

PACKAGE INFORMATION

Load Regulation (Note 1) Dropout Voltage (Note 2) 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 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 SYM TEST CONDITION MIN TYP MAX UNITS Vo + 1V<VIN<10V 1mA<Io<300mA Io=100mA Io=150mA Io=300mA VEN=2V, Io=1000mA 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 0.005 1.5 170 320 120 420 0.05 0.1 0.1 0.8 %/V mV mA mA mA %/W mA V V mA mA Vo DVI DVL DVI(O) IQ IQ(SD) ICL DVP IADJ VEN(L) VEN(H) Advanced Power Electronics Corp. ENGNDVIN VOUT ADJ TOP VIEW Rthja=256℃/W APU8836Y5 SOT-23-5L EN GND VIN VOUTADJ TOP VIEW Rthja=256℃/W APU8836Y5R SOT-23-5L o C To 125 o C

PIN SYMBOL 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. 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. 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. 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. 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. Note 3: Ground current is the regulator quiescent cur- rent plus the pass transistor current. The total current from the supply is the sum of the load current plus the ground pin current. Note 1: Low duty cycle pulse testing with Kelvin con- nections is required in order to maintain accurate data. Note 2: Dropout voltage is defined as the minimum dif- ferential voltage between VIN and VOUT required to main- tain regulation at VOUT. It is measured when the output voltage drops below its nominal value. PIN DESCRIPTIONS VIN Gnd En Adj (Adjustable Only) VOUT Advanced Power Electronics Corp.

Figure 2 - APU8836 Adjustable output block diagram. VIN En THERMAL SHUTDOWN 0.8V VOUT Adj Gnd Advanced Power Electronics Corp. CURRENT LIMIT

Electronics Corp. APU8836 TYPICAL PERFORMANCE CHARACTERISTICS VIN=VEN=3.5V, R1/R2=2KΩ/1KΩ, CIN=COUT=2.2uF(EL Cap.) VIN=VEN=3.5V, R1/R2=2KΩ/1KΩ, CIN=COUT=2.2uF(EL Cap.) Power ON (RL=8Ω) Power OFF (R L=8Ω) Power ON (RL=16Ω) Power OFF (R L=16Ω) Power Sequence IOUT=0mA ~ 150mA Ton=Toff=1mS, Rising=Falling=0.25A/uS Current Limit (VOUT vs. IOUT) Load Transient Power Sequence VOUT IOUT VOUT IOUT VIN VEN VOUT IOUT VIN VEN VOUT IOUT VIN VEN VOUT IOUT VIN VEN VOUT IOUT

Electronics Corp. APU8836 TYPICAL PERFORMANCE CHARACTERISTICS VIN=3.5V, R1/R2=2KΩ/1KΩ, CIN=COUT=2.2uF(EL Cap.) VEN=0V to 2V VEN=2V to 0V VIN=3.5V, R1/R2=2KΩ/1KΩ, CIN=COUT=2.2uF(EL Cap.) VEN=0V to 2V VEN=2V to 0V Enable ON Sequence (RL=16Ω) Enable OFF Sequence (R L=16Ω) Enable ON Sequence (RL=8Ω) Enable OFF Sequence (R L=8Ω) VIN VEN VOUT IOUT VIN VEN VOUT IOUT VIN VEN VOUT IOUT VIN VEN VOUT IOUT

Electronics Corp. APU8836 MARKING INFORMATION SOT-23-5L XXSS Part Number : RS : APU8836Y5 rS : APU8836Y5R Date Code : SS