PE22100

PE22100

Isolated DC-DC Switching Regulator

The PE22100 is a push pull driver for driving small transformers for isolated power supply applications. The PE22100 drives the primary of a center-tapped transformer such as the 782100 family from Murata from a 3.0V or a 5V supply to deliver an isolated power supply.

The device consists of an on-chip oscillator whose frequency is set by an external capacitor. The oscillator output is divided by two in frequency to create anti-phase clock signals that drive two power switches. The device also contains an internal current limit and thermal cutout. The PE22100 is available in a 2 × 2 × 0.5 mm QFN package and is specified for operation from –40 °C to +125 °C.

Technical Resources Contact RFPD

PE22100 Specs

Key Features


  • Push pull driver for small transformers
  • Operates off a 3.0V or 5V supply
  • Adjustable switching frequency up to 2 MHz
  • Current limit protection
  • Over-temperature protection
  • Packaging – 2 × 2 × 0.5 mm QFN

Specifications


Description

Min Vin (V)

Max Vin (V)

Output Power (W)

Max Switching Frequency (MHz)

Max Operating Temperature (Deg C)

Max Operating Temperature (Deg C)

Package

Package (mm)

Isolated Transformer Driver

3.0

5.5

1

2

-40

125

12L QFN

2 × 2

Schematics


Diagram pe22100

Products displayed on this site are protected under one or more of the following U.S. Patents.

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