Advanced Power Electronics Corp. APU8852 150mA ULTRA LOW DROPOUT POSITIVE FIXED REGULATORS FEATURES DESCRIPTION Stable with 2.2uF Low ESR Ceramic Capacitor 2% Voltage Reference Accuracy Wide Operating Range: 2.5V ~ 16V 5uA Quiescent Current in Shutdown Current Limit and Thermal Shutdown Logic Input Enable Pin RoHS Compliant & Halogen Free SOT-23-5L Package The APU8852 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 APU8852 is available in fixed and 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 C1 2.2uF VOUT R1 + + GND Enable EN C2 2.2uF VOUT Vo= 0.8 x (1+R1/R2) R2 ADJ Figure 1 - Typical application of the APU8852 adjustable voltage regulator. VIN VIN C1 2.2uF VOUT=2.5V VOUT + Enable + GND EN CBYP + C2 2.2uF C3 1000pF Figure 2 - Typical application of the APU8852-25 fixed voltage regulator. Data and specifications subject to change without notice 1 201203281 Advanced Power Electronics Corp. APU8852 ABSOLUTE MAXIMUM RATINGS (TA=25oC, unless otherwise specified.) Input Voltage (VIN) ------------------------------------------ 18V Enable Input Voltage (VEN) ------------------------------- 18V Storage Temperature Range (TST) --------------------- -65 to 150oC Operating Junction Temperature Range (TJ) ------- -40 to 85oC Thermal Resistance Junction to Ambient (Rthja)Note 256oC/W Note. RthJA is measured with the PCB copper area of approximately 1 in2(Multi-layer). PACKAGE / ORDERING INFORMATION ADJ Fixed TOP VIEW TOP VIEW EN GND VIN EN GND VIN SOT-23-5L SOT-23-5L APU8852X-XX Package Output Voltage Y5 : SOT-23-5L Blank : ADJ 18 : 1.8V 25 : 2.5V 28 : 2.8V 30 : 3.0V 33 : 3.3V ADJ VOUT CBYP VOUT ELECTRICAL SPECIFICATIONS Unless otherwise specified, these specifications apply over CIN=CO=2.2F, IO=100A, VIN(MIN)=2.5V(Adjustabledevices) VIN=VO + 1V(for fixed voltage devices), VOUT=VFB(for adjustable version only), CBYP=470pF(for fixed voltage devices), 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 Line Regulation SYM Vo VI Load Regulation (Note 1) VL Dropout Voltage (Note 2) VDROP Ground Current (Note 3) IQ Minimum Load Current IMin Ground Current-SD Activated Current Limit Thermal Regulation Adj Pin Current IQ(SD) ICL VP IAdj MIN -2 TYP - MAX 2 UNITS VO + 1V<VIN<16V - 0.1 - %/V 1mA < IO < 100mA - 1.5 - % IO=100uA - 10 - IO=50mA - 50 - IO=100mA - 120 - VEN = 2V, IO = 100uA - 120 - uA - 5 - mA - 5 - uA 150 - - mA VIN = 10V, IO = 150mA, 10ms Pulse - 0.05 - %/W VIN = 2.5V, VO = VADJ - 0.1 - uA TEST CONDITION VEN = 0V to 0.8V or Open VO=0V Enable Pin Input LO Voltage VENL Regulator OFF - - 0.8 Enable Pin Input HI Voltage VENH 2 - - Enable Pin Input LO Current Regulator ON VENL = 0V - 0.01 - Enable Pin Input HI Current VENH = 2V - 20 - % mV V uA 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 1% below its nominal value. 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. 2 Advanced Power Electronics Corp. APU8852 PIN DESCRIPTIONS 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 VIN 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 GND 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 EN 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. Adj (Adjustable only) CBYP (Fixed only) A 470 to 1000pF bypass capacitor connected to this pin reduces the output noise. The output of the regulator. A minimum of 2.2uF with max ESR of 1 capacitor VOUT must be connected from this pin to ground to insure stability. BLOCK DIAGRAM VIN 1 ADJ 4 5 VOUT + + Thermal Shutdown 2 GND Current Limit 3 EN Figure 3 - APU8852Y5 Adjustable output block diagram. VIN 1 5 VOUT + CBYP - 4 + Thermal Shutdown GND 2 Current Limit 3 EN Figure 4 - APU8852Y5 Fixed Mode output block diagram. 3 Advanced Power Electronics Corp. APU8852 TYPICAL PERFORMANCE CHARACTERISTICS Quiescent Current vs. Temperature VIN=5V , VOUT=3.3V , IOUT=0A Quiescent Current vs. Input Voltage VIN=4V~16V, VOUT=3.3V, IOUT=0A, TJ=25oC IQ vs Input Voltage 200.0uA 180.0uA 180.0uA 160.0uA 160.0uA 140.0uA 140.0uA 120.0uA 120.0uA IQ IQ IQ vs Temperature 200.0uA 100.0uA 100.0uA 80.0uA 80.0uA 60.0uA 60.0uA 40.0uA 40.0uA 20.0uA 20.0uA VIN=5V 0.0uA -60 0.0uA -40 -20 0 20 40 60 80 100 120 4V 140 6V 8V 10V 12V 14V 16V Input Voltage Temperature Output Voltage vs. Output Current VIN=5V , VOUT=3.3V , IOUT=10mA~150mA Output Voltage vs. Input Voltage VIN=4~16V , VOUT=3.3V, IOUT=10mA Output Voltage vs Output Current 3.4300V Output Voltage vs Input Voltage 3.3600V 3.3580V 3.4100V 3.3560V 3.3900V 3.3540V 3.3520V Output V oltage Output Voltage 3.3700V 3.3500V 3.3300V 3.3100V 3.2900V 3.3500V 3.3480V 3.3460V 3.3440V 3.3420V 3.3400V 3.3380V 3.2700V 3.3360V 3.3340V 3.2500V Temp=25 3.2300V 0mA 20mA 40mA 60mA 80mA 100mA 120mA 140mA Temp=25 3.3320V 160mA Output Current 3.3300V 4V 6V 8V 10V 12V 14V 16V Input Voltage Output Voltage vs. Temperature VIN=5V , VOUT=3.3V, IOUT=10mA PSRR VIN=5V , VOUT=3.3V , IOUT=10mA Output Voltage vs Temperature 3.4300V 3.4100V 3.3900V Output Voltage 3.3700V 3.3500V 3.3300V 3.3100V 3.2900V 3.2700V 3.2500V VIN=5V 3.2300V -40 -20 0 20 40 60 80 100 120 140 Temperature 4 Advanced Power Electronics Corp. APU8852 TYPICAL PERFORMANCE CHARACTERISTICS Load Transient VIN=5V , VOUT=3.3V , IOUT=10~150mA / 5ms , 2.5A/us Line Transient VIN=4.3~5.3V, VOUT=3.3V, IOUT=10mA 5 Advanced Power Electronics Corp. APU8852 MARKING INFORMATION SOT-23-5L Part Number : RY RY&SS Output Voltage : Date Code SS:2004,2008,2012... SS:2003,2007,2011... SS:2002,2006,2010... SS:2001,2005,2009... Identification Code VOUT Blank Adj D 1.8V F 2.5V G 2.8V H 3.0V I 3.3V 6