Advanced Power Electronics Corp. APU8852 Preliminary 150mA ULTRA LOW DROPOUT POSITIVE ADJUSTABLE AND FIXED REGULATORS DESCRIPTION FEATURES SOT-23-5 Package Stable with 2.2mF Ceramic Capacitor 2% Voltage Reference Accuracy Wide Operating range: 2.5V ~ 14V 5mA Quiescent Current in Shutdown Current Limit and Thermal Shutdown Logic Input Enable Pin RoHS Compliant 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 VO ( Vo = 0.8 3 1+ R1 C2 2.2uF Gnd R1 R2 ) R2 EN Adj Enable Figure 1 - Typical application of the APU8852 ajustable voltage regulator. 3.3V VIN C1 2.2uF VOUT 2.5V Gnd En C2 2.2uF CBYP Enable C3 1000pF Figure 2 - Typical application of the APU8852-25 fixed voltage regulator. PACKAGE ORDER INFORMATION TJ (°C) 0 To 125 0 To 125 0 To 125 0 To 125 0 To 125 0 To 125 5-PIN SOT-23 APU8852Y5 APU8852Y5-18 APU8852Y5-25 APU8852Y5-28 APU8852Y5-30 APU8852Y5-33 Data and specifications subject to change without notice. OUTPUT VOLTAGE Adj 1.8V 2.5V 2.8V 3.0V 3.3V 1 20090310pre Advanced Power Electronics Corp. APU8852 ABSOLUTE MAXIMUM RATINGS Input Voltage (V IN) ..................................................... Enable Input Voltage ................................................. Storage Temperature Range ....................................... Operating Junction Temperature Range ...................... 16V 16V -65°C To 150°C -40°C To 85°C PACKAGE INFORMATION 5-PIN SOT-23 (Y5) 5-PIN SOT-23 (Y5) EN Gnd VIN 3 2 En Gnd VIN 1 3 2 1 Fixed Adjustable 4 Adj 5 VOUT uJA=2568C/W 4 5 CBYP VOUT uJA=2568C/W ELECTRICAL SPECIFICATIONS Unless otherwise specified, these specifications apply over CIN=Co=2.2mF, Io=100mA, VIN(MIN)=2.5V(Adjustable devices) VIN=Vo + 1V(for fixed voltage devices), VOUT=VFB(for adjustable version only), CBYP=470pF(for fixed voltage devices), VEN=2V and TA=258C. Typical values refer to TA=258C. 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) IQ Minimum Load Current IMin 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(SD) ICL DVP IADJ VEN(L) VEN(H) MIN TYP -2 MAX UNITS 2 % Vo + 1V<VIN<14V 1mA<Io<100mA 0.1 1.5 %/V % Io=100mA 10 mV Io=50mA 50 Io=100mA 120 VEN =2V, Io=100mA 120 mA 5 mA 5 mA mA %/W mA V V mA mA 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 150 0.05 0.1 0.8 2.0 0.01 20 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 1% below its nominal value. APU8852 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 # 1 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. 2 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. 3 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. 4 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. 4 CBYP (Fixed Only) A 470 to 1000pF bypass capacitor connected to this pin reduces the output noise. 5 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. APU8852 BLOCK DIAGRAM 5 VOUT VIN 1 Adj 4 THERMAL SHUTDOWN + CURRENT LIMIT Gnd 2 3 EN Figure 3 - APU8852Y5 Adjustable output block diagram. VIN 1 5 VOUT THERMAL SHUTDOWN CBYP 4 + Gnd 2 CURRENT LIMIT 3 EN Figure 4 - APU8852Y5 Fixed Mode output block diagram. 4 ADVANCED POWER ELECTRONICS CORP. Package Outline : SOT-23-5L Millimeters SYMBOLS MIN NOM MAX A 1.00 1.10 1.30 A1 0.00 --- 0.10 A2 0.70 0.80 0.90 b 0.30 0.40 0.50 C 0.10 0.15 0.25 D 2.70 2.90 3.10 E 1.40 1.60 1.80 e --- 1.90(TYP) --- H 2.60 2.80 3.00 L 0.37 --- --- θ1 0° 5° 9° e1 --- 0.95(TYP) --- Note 1：Package Body Sizes Exclude Mold Flash Protrusions or Gate Burrs. Note 2：Tolerance ± 0.1000 mm(4mil) Unless Otherwise Spe- cified. Note 3：Coplanarity：0.1000 mm Note 4：Dimension L Is Measured in Gage plane. Part Marking Information & Packing : SOT-23-5L Part Number : RY RY&SS Output Voltage : Blank : ADJ Version D : 1.8V H : 3.0V F : 2.5V I : 3.3V G : 2.8V Date Code : SS SS:2004,2008,2012… SS:2003,2007,2011… SS:2002,2006,2010… SS:2001,2005,2009… 5