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LP3220S - 1.0A Step-Down Converter

Description

The LP3220S is a 1.5MHz constant frequency current mode PWM step-down converter.

It is ideal for portable equipment which requires very high current up to 1.0A from single-cell Lithium-ion batteries while still achieving over 94% efficiency during peak load conditions.

Features

  • Input Voltage Range: 2.2V to 5.5V.
  • Output Voltage Range: 0.61V to VIN.
  • 1.0A Output Current.
  • High Efficiency: Up to 94%.
  • 100% Duty Cycle in Dropout.
  • Low Shutdown Current:.

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Datasheet preview – LP3220S

Datasheet Details

Part number LP3220S
Manufacturer Lowpowersemi
File Size 518.05 KB
Description 1.0A Step-Down Converter
Datasheet download datasheet LP3220S Datasheet
Additional preview pages of the LP3220S datasheet.

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Full PDF Text Transcription

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Preliminary Datasheet LP3220S 1.5MHz, 1.0A Step-Down Converter General Description The LP3220S is a 1.5MHz constant frequency current mode PWM step-down converter. It is ideal for portable equipment which requires very high current up to 1.0A from single-cell Lithium-ion batteries while still achieving over 94% efficiency during peak load conditions. The LP3220S also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation provides very low output ripple for noisy sensitive applications. The LP3220S can supply up to 1.0A output load current from at VIN = 3V and has an input voltage 2.2V to 5.5V and the output voltage can be regulated as low as 0.6V.
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