ADP1111ARZ-REEL

微功耗，升压/降压型稳压器SW ;可调和固定3.3 V ， 5 V ， 12 V Micropower, Step-Up/Step-Down SW Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V

Product Details

The ADP1111 is part of a family of step-up/step-down switching regulators that operates from an input voltage supply of 2 V to 12 V in step-up mode and up to 30 V in step-down mode. The ADP1111 can be programmed to operate in step-up/stepdown or inverting applications with only 3 external components.

The fixed outputs are 3.3 V, 5 V and 12 V; and an adjustable version is also available. The ADP1111 can deliver 100 mA at 5 V from a 3 V input in step-up mode, or it can deliver 200 mA at 5 V from a 12 V input in step-down mode.

Maximum switch current can be programmed with a single resistor, and an open collector gain block can be arranged in multiple configuration for low battery detection, as a post linear regulator, undervoltage lockout, or as an error amplifier.

### Features and Benefits

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Operates from 2 V to 30 V Input Voltage Range

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72 kHz Frequency Operation

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Utilizes Surface Mount Inductors

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Very Few External Components Required

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Operates in Step-Up/Step-Down or Inverting Mode

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Low Battery Detector

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User Adjustable Current Limit

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Internal 1 A Power Switch

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Fixed or Adjustable Output Voltage

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8-Pin DIP or SO-8 Package