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

Datasheet Summary

Description

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.

Features

  • 1.5MHz fixed switching frequency.
  • 90% efficiency.
  • Typical.

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Datasheet preview – LN2272

Datasheet Details

Part number LN2272
Manufacturer natLinear
File Size 765.29 KB
Description Super-Small Package PWM Control Step-up Switching Regulator
Datasheet download datasheet LN2272 Datasheet
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Full PDF Text Transcription

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LN2272 Super-Small Package PWM Control Step-up Switching Regulator ■ General Description 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. It operates in stable waveforms without external compensation. The 80µA low quiescent current together with high efficiency maintains long battery lifetime. ■ 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.
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