ADP1109A

Obsolete

Versatile step-up switching regulator

Data Sheet (Rev. 0) Product Selection Table

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Overview

Ground Current: 460 µA
Operates at Supply Voltages 2 V to 9 V
Fixed 3.3 V, 5 V, 12 V and Adjustable Output

Oscillator Frequency: 120 kHz
Logic Shutdown
Minimum External Components Required
8-Lead DIP and SO-8 Packages

The ADP1109A-5 can deliver 100 mA at 5 V from a 3 V input and the ADP1109A-12 can deliver 60 mA at 12 V from a 5 V input. The device also features a logic controlled shutdown capability that, when a logic low is applied, will shut down the oscillator. The 120 kHz operating frequency allows for the use of small surface mount components.

The gated oscillator capability eliminates the need for frequency compensation.