Advanced Power Electronics Corp. APU8850-HF-3 150mA Ultra-Low Dropout Adjustable and Fixed Regulators Features Description Stable with 2.2F Low ESR Ceramic Capacitor The APU8850 device is an efficient linear voltage regulator with better than 2% initial voltage accuracy, Voltage Reference Accuracy of 2% very low dropout voltage and very low ground current, Wide Operating Range: 4.5V ~ 25V designed especially for hand-held, battery-powered Quiescent Current in Shutdown of 5A applications. Other features of the device are TTL Current Limit and Thermal Shutdown compatible enable/shutdown control input, current- Logic Input Enable Pin limiting and thermal shutdown. RoHS Compliant halogen-free SOT-89, ESOP-8, The APU8850-3 is available in fixed and adjustable J-lead 2021-8, TSOT-23-5 and SOT-23-5 Packages output voltage versions in a small SOT-23-5, TSOT-23-5, J-lead 2021-8, ESOP-8 or SOT-89 package. Applications Laptop, Notebook and Palmtop computers Battery Powered Equipments PCMCIA Vcc and Vpp Regulator Consumer Electronics High Efficiency Linear Power Supplies Typical Application VIN VIN VOUT VOUT + R1 Vo= 1.25 x (1+R1/R2) C1 + C2 2.2uF 2.2uF GND R2 EN ADJ Enable Figure 1 - Typical application of the APU8850-3 adjustable voltage regulator. VIN VIN VOUT VOUT=3.3V + C1 + C2 2.2uF 2.2uF GND EN CBYP + Enable C3 1000pF Figure 2 - Typical application of the APU8850-33-3 Figure 3 - Typical application of the APU8850-xx-3 in SOT-89 Ordering information OUTPUT PART NUMBER VOLTAGE APU8850xx-3TR Adj xx = package code APU8850xx-15-3TR 1.5V Y5: SOT-23-5 TY5: TSOT-23-5 APU8850xx-18-3TR 1.8V U: J-lead 2021-8 APU8850xx-25-3TR 2.5V G: SOT-89 APU8850xx-28-3TR 2.8V MP: ESOP-8 APU8850xx-30-3TR 3.0V APU8850xx-33-3TR 3.3V APU8850xx-50-3TR 5.0V These products are shipped on tape and reel, 3000 pieces per reel (SOT-89 1000pcs/reel). The device is rated MSL3 for moisture sensitivity, and the reel is shipped sealed inside a moisture barrier bag. 2010 Advanced Power Electronics Corp. USA 201104228-3 1/9 www.a-powerusa.comAdvanced Power Electronics Corp. APU8850-HF-3 Absolute Maximum Ratings Input Voltage (V IN) ..................................................... 27V Enable Input Voltage ................................................. 27V Storage Temperature Range ....................................... -65C to 150C Operating Junction Temperature Range ...................... -40C to 85C Thermal Resistance Junction to Ambient (Rth ) ja o SOT-23-5L/TSOT-23-5L 256 C/W o SOT-89 300 C/W o ESOP-8 150 C/W o J-lead 2021-8 300 C/W Pin Configuration SOT-89 ( Top View ) J-lead 2021-8 ESOP-8 (*Adj/Fixed) SOT-23-5L/TSOT-23-5L TAB is VIN ( Top View ) (Top View) TOP VIEW TOP VIEW EN GND VIN EN GND VIN EN GND 1 8 VOUT 1 8 VIN ADJ 2 7 GND NC 2 7 GND GND VOUT GND132 3 6 Adjustable Fixed *NC/CBYP 3 6 NC 4 5 VIN GND *ADJ/NC 4 5 EN ADJ VOUT CBYP VOUT GND VIN VOUT Electrical Specifications Unless otherwise specified, these specifications apply over C =C =2.2F, I =100uA, V =4.5V, C =470pF IN O O IN(MIN) BYP o o (for fixed voltage devices), V =2V and T =25 C. Typical values refer to T =25 C. Low duty cycle pulse testing is used EN A A which keeps junction and case temperatures equal to the ambient temperature. UNITS Parameter SYM TEST CONDITION MIN TYP MAX Vo Reference Voltage -2 - 2 % Line Regulation V V + 2V<V <25V, I =1mA - 0.1 - %/V I O IN O V Load Regulation (Note 1) V =V +2V - 0.5 - % L IN O I =100uA - 1 - O V Dropout Voltage (Note 2) V DROP I =100mA - 1.2 - O I Ground Current (Note 3) Q V =2V, I =100uA - 250 - uA EN O I Ground Current-SD Activated Q(SD) V =0V or Open - 1 - uA EN I Adjust Pin Current ADJ V =4.5V, V =V - 0.1 - uA IN O ADJ I CL Current Limit 200 - - mA I V =0V Z Short Current O - 175 - mA Enable Pin Input LO Voltage V Regulator OFF - - 0.8 V EN(L) V EN(H) Enable Pin Input HI Voltage Regulator ON 2 - - V Enable Pin Input LO Current V =0V - 0.01 - uA EN(L) Enable Pin Input HI Current V =2V - 10 - uA EN(H) Ripple Rejection PSRR C =1nF, C =2.2uF, f = 1kHz -70 - dB BYP OUT RIPPLE o Over Temperature Shutdown - 150 - C o Over Temperature Shutdown Hysteresis -10 - C 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. 2010 Advanced Power Electronics Corp. USA 2/9 www.a-powerusa.com