+5 V Fixed, Adjustable a Low-Dropout Linear Voltage Regulator ADP667 FUNCTIONAL BLOCK DIAGRAM FEATURES Low-Dropout: 150 mV 200 mA Low Power CMOS: 20 m A Quiescent Current OUT IN Shutdown Mode: 0.2 m A Quiescent Current DD 250 mA Output Current ADP667 Pin Compatible with MAX667 Stable with 10 m F Load Capacitor SHDN Low Battery Detector A1 Fixed +5 V or Adjustable Output SET +3.5 V to +16.5 V Input Range C1 LBO Dropout Detector Output C2 APPLICATIONS 1.255V 50mV REF Handheld Instruments LBI Cellular Telephones GND Battery Operated Devices Portable Equipment Solar Powered Instruments High Efficiency Linear Power Supplies GENERAL DESCRIPTION TYPICAL OPERATING CIRCUIT The ADP667 is a low-dropout precision voltage regulator that can supply up to 250 mA output current. It can be used to give a fixed +5 V output with no additional external components or OUT +5V IN + + OUTPUT +6V can be adjusted from +1.3 V to +16 V using two external resis- C1 INPUT ADP667 10F tors. Fixed or adjustable operation is automatically selected via the SET input. The low quiescent current (20 m A) in conjunc- SET GND SHDN tion with the standby or shutdown mode (0.2 m A) makes this device especially suitable for battery powered systems. The dropout voltage when supplying 100 m A is only 5 mV allowing operation with minimal headroom and prolonging the battery useful life. At higher output current levels the dropout remains low increasing to just 150 mV when supplying 200 mA. A wide input voltage range from 3.5 V to 16.5 V is allowable. Additional features include a dropout detector and a low supply/ battery monitoring comparator. The dropout detector can be ORDERING GUIDE used to signal loss of regulation, while the low battery detector can be used to monitor the input supply voltage. Temperature Package Package Model Range Description Option The ADP667 is a pin-compatible replacement for the MAX667. It is specified over the industrial temperature range 40 C to ADP667AN 40 C to +85 C 8-Pin Plastic DIP N-8 +85 C and is available in an 8-pin DIP and in narrow surface ADP667AR 40 C to +85 C 8-Lead SOIC SO-8 mount (SOIC) packages. REV. 0 Analog Devices, Inc., 1995 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A. which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 617/329-4700 Fax: 617/326-8703(V = +9 V, GND = 0 V, V = +5 V, C = 10 m F, T = T to T unless IN OUT L A MIN MAX ADP667SPECIFICATIONS otherwise noted) Parameter Min Typ Max Units Test Conditions/Comments Input Voltage, V 3.5 16.5 V IN Output Voltage, V 4.8 5.0 5.2 V V = 0 V, V = 6 V, I = 10 mA OUT SET IN OUT Maximum Output Current 250 mA V = +6 V, +4.5 V < V < +5.5 V IN OUT Quiescent Current I : Shutdown Mode 0.2 1 mAV = 2 V, T = +25 C GND SHDN A 2 mAT = T to T A MIN MAX I : Normal Mode V = 0 V, V = 0 V, T = +25 C GND SHDN SET A 20 25 mAI = 0 m A OUT 20 30 mAI = 100 m A OUT 515 mAI = 200 mA OUT T = T to T A MIN MAX 35 mAI = 0 m A OUT 50 mAI = 100 m A OUT 20 mA I = 200 mA OUT Dropout Voltage 5 60 mV I = 100 m A, T = +25 C OUT A 75 mV T = T to T A MIN MAX 150 250 mV I = 200 mA, T = +25 C OUT A 350 mV T = T to T A MIN MAX Load Regulation 50 100 mV I = 10 mA200 mA, V = 6 V, T = +25 C OUT IN A 250 mV T = T to T A MIN MAX Line Regulation 5 10 mV V = 6 V to 10 V, I = 10 mA, T = +25 C IN OUT A 15 mV T = T to T A MIN MAX SET Reference Voltage, V 1.23 1.255 1.28 V SET SET Input Leakage Current, I 0.01 10 nA V = 1.5 V, T = +25 C SET SET A 1000 nA T = T to T A MIN MAX Output Leakage Current, I 0.1 1 mAV = 2 V OUT SHDN Short-Circuit Current, I 400 mA T = +25 C OUT A 450 mA T = T to T A MIN MAX Low Battery Detector Input Threshold, V 1.215 1.255 1.295 V LBI LBI Input Leakage Current, I 0.01 10 nA V = 1.5 V, T = +25 C LBI LBI A 1000 nA T = T to T A MIN MAX Low Battery Detector Output Voltage, V 0.25 V V < 1.215 V, I = 10 mA, T = +25 C LBO LBI LBO A 0.40 V T = T to T A MIN MAX Shutdown Input Threshold Voltage, V 1.5 V SHDN Shutdown Input Leakage Current, I 0.01 10 nA V = 0 V to V , T = +25 C SHDN SHDN IN A 1000 nA T = T to T A MIN MAX Dropout Detector Output Voltage 0.25 V (V = 0 V, V = 0 V, R = 100 kW SET SHDN DD V = 7 V, I = 10 mA) IN OUT 4.0 (V = 0 V, V = 0 V, R = 100 kW SET SHDN DD V = 4.5 V, I = 10 mA) IN OUT Specifications subject to change without notice. ABSOLUTE MAXIMUM RATINGS* Power Dissipation, SO-8 . 450 mW (T = +25 C unless otherwise noted) (Derate 6 mW/ C above +50 C) A q , Thermal Impedance 170 C/W JA Input Voltage, V +18 V IN Operating Temperature Range Output Short Circuit to GND Duration 1 sec Industrial (A Version) 40 C to +85 C LBO Output Sink Current . 50 mA Storage Temperature Range 65 C to +150 C LBO Output Voltage . GND to V OUT Lead Temperature (Soldering, 10 sec) +300 C SHDN Input Voltage 0.3 V (V + 0.3 V) IN Vapor Phase (60 sec) +215 C LBI, SET Input Voltage . 0.3 V (V + 0.3 V) IN Infrared (15 sec) . +220 C Power Dissipation, N-8 625 mW ESD Rating > 6000 V (Derate 8.3 mW/ C above +50 C) , Thermal Impedance 120 C/W q JA *This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specifica- tion is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. REV. 0 2