Fairchild FAN5353 Datasheet

The FAN5353 is a 3MHz fixed-frequency synchronous buck regulator that delivers an adjustable output from an input voltage supply of 2.7V to 5.5V. It has a 3A output current capability, a 2.7V to 5.5V input voltage range, an adjustable output voltage of 0.8V to VIN•0.9, a power good output, internal soft-start, input under-voltage lockout (UVLO), thermal shutdown and overload protection, and a 12-lead 3x3.5mm MLP package.


Fairchild FAN5353 Datasheet - cover page
Brand
Fairchild
Document type
Datasheet
Language
English
Pages
13
File format
PDF
File size
978 KB
Published
12 July, 2012
Updated
30 September, 2023
MD5 checksum
4FDDE99F534FC7E3107AB37F903628CC

About this manual

The FAN5353 is a step-down switching voltage regulator designed to deliver an adjustable output from an input supply of 2.7V to 5.5V. Utilizing proprietary architecture with synchronous rectification, it provides up to 3A of output current at over 85% efficiency while operating at a nominal fixed frequency of 3MHz.

What's inside

  • Features
  • Applications
  • Description
  • Ordering Information
  • Pin Configuration
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Typical Characteristics

Specifications

Output Current Capability3A
Input Voltage Range2.7V to 5.5V
Operating Frequency3MHz
Output Voltage Range0.8V to 90% Duty Cycle
Package Type12-lead MLP

Frequently asked questions

What is the maximum output current?

The device can deliver up to 3A of output current.

Does it have a power good signal?

Yes, it includes an open-drain power good (PGOOD) signal that pulls low when the output is not in regulation.

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