LN2272 Datasheet (natlinear) - Super-Small Package PWM Control Step-up Switching Regulator

LN2272, Super-Small Package PWM Control Step-up Switching Regulator

The LN2272 is a compact, high efficiency, step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp generator, comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load currents.

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LN2272 Features

* 1.5MHz fixed switching frequency

* 90% efficiency

* Typical Application Circuit

* High supply capability to deliver 5V 1.2A with 1 Li-ion Cell

* 80µA supply current

* 0.01µA shutdown mode supply current

* Applications

* PDA

* LCD panel

* Portable instrument