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ISL6522 - Buck and Synchronous Rectifier

Datasheet Summary

Features

  • a 15MHz gain-bandwidth product and 6V/µs slew rate which enables high converter bandwidth for fast transient performance. The resulting PWM duty ratio ranges from 0.
  • 100%. The ISL6522 protects against overcurrent conditions by inhibiting PWM operation. The ISL6522 monitors the current by using the rDS(ON) of the upper MOSFET which eliminates the need for a current sensing resistor. Pinout TOP VIEW SOIC and TSSOP RT 1 OCSET 2 SS 3 COMP 4 FB 5 EN 6 GND 7 14 VCC 13 PVCC 12 LGATE 11 PGN.

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Datasheet Details

Part number ISL6522
Manufacturer Intersil
File Size 333.03 KB
Description Buck and Synchronous Rectifier
Datasheet download datasheet ISL6522 Datasheet
Additional preview pages of the ISL6522 datasheet.

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Full PDF Text Transcription

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® Data Sheet November 2002 ISL6522 FN9030.3 Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller The ISL6522 provides complete control and protection for a DC-DC converter optimized for high-performance microprocessor applications. It is designed to drive two N-Channel MOSFETs in a synchronous rectified buck topology. The ISL6522 integrates all of the control, output adjustment, monitoring and protection functions into a single package. The output voltage of the converter can be precisely regulated to as low as 0.8V, with a maximum tolerance of ±1% over temperature and line voltage variations. The ISL6522 provides simple, single feedback loop, voltagemode control with fast transient response.
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