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LT1170IQ#PBF

5A flyback/boost regulator, 3-60V, TO-220-5

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Manufacturer Part：

LT1170IQ#PBF

Package：

TO-220-5 (10.4 x 9.1 x 4.7mm)

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Description

Product Overview

LT1170IQ#PBF from ADI is a 5A offline/flyback switching regulator with 3-60V input. 100kHz fixed frequency. Current mode control. TO-220-5. IQ suffix = industrial temp -40C to +125C.

Working Principle

Current mode PWM controller with integrated 5A NPN power switch. 3-60V input range. 100kHz switching. Error amplifier drives PWM comparator against slope-compensated current sense. Flyback, boost, SEPIC, and forward topologies supported.

Pin Description

Pin Name Function
1 GND Ground
2 FB Feedback (1.244V ref)
3 VC Error amp output/comp
4 VIN 3-60V input
5 SW 5A switch output

Applications

  • Isolated flyback converters
  • Boost regulators
  • Battery chargers
  • SEPIC converters

Alternative Models

Manufacturer Part Number Notes
ADI LT1171IQ#PBF 2.5A version
ADI LT1172IQ#PBF 1.5A version

LT1170IQ#PBF from ADI is a 5A offline/flyback switching regulator with 3-60V input. 100kHz fixed frequency. Current mode control. TO-220-5. IQ suffix = industrial temp -40C to +125C.

Current mode PWM controller with integrated 5A NPN power switch. 3-60V input range. 100kHz switching. Error amplifier drives PWM comparator against slope-compensated current sense. Flyback, boost, SEPIC, and forward topologies supported.

Pin Name Function
1 GND Ground
2 FB Feedback (1.244V ref)
3 VC Error amp output/comp
4 VIN 3-60V input
5 SW 5A switch output
  • Isolated flyback converters
  • Boost regulators
  • Battery chargers
  • SEPIC converters
Manufacturer Part Number Notes
ADI LT1171IQ#PBF 2.5A version
ADI LT1172IQ#PBF 1.5A version
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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