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ADP667 数据表(PDF) 1 Page - Analog Devices |
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ADP667 数据表(HTML) 1 Page - Analog Devices |
1 / 8 page One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 FUNCTIONAL BLOCK DIAGRAM ADP667 IN SHDN LBO LBI GND 50mV SET DD OUT 1.255V REF A1 C1 C2 REV. 0 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a +5 V Fixed, Adjustable Low-Dropout Linear Voltage Regulator ADP667 FEATURES Low-Dropout: 150 mV @ 200 mA Low Power CMOS: 20 µA Quiescent Current Shutdown Mode: 0.2 µA Quiescent Current 250 mA Output Current Pin Compatible with MAX667 Stable with 10 µF Load Capacitor Low Battery Detector Fixed +5 V or Adjustable Output +3.5 V to +16.5 V Input Range Dropout Detector Output APPLICATIONS Handheld Instruments Cellular Telephones Battery Operated Devices Portable Equipment Solar Powered Instruments High Efficiency Linear Power Supplies GENERAL DESCRIPTION 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 can be adjusted from +1.3 V to +16 V using two external resis- tors. Fixed or adjustable operation is automatically selected via the SET input. The low quiescent current (20 µA) in conjunc- tion with the standby or shutdown mode (0.2 µA) makes this device especially suitable for battery powered systems. The dropout voltage when supplying 100 µA 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 used to signal loss of regulation, while the low battery detector can be used to monitor the input supply voltage. The ADP667 is a pin-compatible replacement for the MAX667. It is specified over the industrial temperature range –40 °C to +85 °C and is available in an 8-pin DIP and in narrow surface mount (SOIC) packages. ORDERING GUIDE Temperature Package Package Model Range Description Option ADP667AN –40 °C to +85°C 8-Pin Plastic DIP N-8 ADP667AR –40 °C to +85°C 8-Lead SOIC SO-8 TYPICAL OPERATING CIRCUIT IN OUT GND SET SHDN ADP667 +5V OUTPUT C1 10µF + +6V INPUT + © Analog Devices, Inc., 1995 |
类似零件编号 - ADP667 |
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类似说明 - ADP667 |
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