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Package Cooled:190
Part Number: ADM663A
Package Cooled: 190
Description: The ADM663A/ADM666A are precision linear voltage regulators featuring a maximum quiescent current of 9...
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ADM663A
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DataSheet
General Description
ADM663A General Description
The ADM663A/ADM666A are precision linear voltage regulators featuring a maximum quiescent current of 9 mA. They can be used to give a fixed +3.3 V or +5 V output with no additional external components or can be adjusted from 1.3 V to 16 V using two external resistors. Fixed or adjustable operation is automatically selected via the VSET input. The low quiescent current makes these devices especially suitable for battery powered systems. The input voltage range is 2 V to 16.5 V, and an output current up to 100 mA is provided. Current limiting may be set using a single external resistor. For additional safety, an internal thermal shutdown circuit monitors the internal die temperature.
The ADM666A features additional low battery monitoring circuitry to detect for low battery voltages.
The ADM663A/ADM666A are pin compatible enhancements for the ADM663/ADM666. Improvements include an additional 3.3 V output range, higher output current, and operation with a small output capacitor.
The ADM663A/ADM666A are available in an 8-pin DIP and narrow surface mount (SOIC) packages.
ADM663A Maximum Ratings
(TA = +25°C unless otherwise noted)
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +18 V Terminal Voltage
(ADM663A) Pins 1, 3, 5, 6, 7. . . . . . . . . . . ...........(GND 0.3 V) to (VIN + 0.3 V)
(ADM666A) Pins 1, 2, 3, 5, 6. . . . . . . . . . . . . . . . .(GND 0.3 V) to (VIN + 0.3 V)
(ADM663A) Pin 2 . . . . . . . ..............................(GND 0.3 V) to (VOUT1 + 0.3 V)
(ADM666A) Pin 7 . . . . . . . . . . . . . .... ..........................(GND 0.3 V) to +16.5 V
Output Source Current
(ADM663A, ADM666A) Pin 2 . . . . . . . . . . . . . . . . . . ................................100 mA
(ADM663A) Pin 3 . . . . . . . . . . . . . . . . . . . . . . . . . .....................................25 mA
Output Sink Current, Pin 7 . . . . . . . . . . . . . . . . . . . ...............................20 mA
Power Dissipation, N-8 . . . . . . . . . . . . . . . . . . . . . .................................800 mW
(Derate 8.3 mW/°C above +30°C)
qJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . ..............................120°C/W
Power Dissipation, R-8 . . . . . . . . . . . . . . . . . . . . . ..................................570 mW
(Derate 6 mW/°C above +30°C)
qJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . .............................170°C/W
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . . . ................................40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . ...........................65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . .... .........................+300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . ....................................+215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . .......................................+220°C
ADM663A Features
Tri-Mode Operation 3.3 V, 5 V Fixed or +1.3 V to +16 V Adjustable
Low Power CMOS: 9 mA max Quiescent Current High Current 100 mA
Output Low Dropout Voltage Upgrade for ADM663/ADM666 "Small"
0.1 mF Output Capacitor (0805 Style) +2 V to +16.5 V Operating Range
Low Battery Detector ADM666A No Overshoot on Power-Up Thermal
Shutdown
ADM663A Typical Application
Handheld Instruments LCD Display Systems
Pagers Battery Operated Equipme
Pagers Battery Operated Equipme
ADM663AAN
PDF/DataSheet Download
- Datasheet: ADM663AAN
- File Size: 339917 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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