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ISL6226 - Advanced PWM and Linear Power Controller for Portable Applications

Description

Provides battery voltage to the oscillator for feed-forward rejection of the input voltage variation.

Also, this pin programs frequency of the internal clock and gain of the ramp generator.

Features

  • Provides Two Regulated Voltages - Linear Regulator, User Selected, Current Limited - High Efficiency PWM Over Wide Line and Load Range - Synchronous Buck Converter on PWM Output - Hysteretic Operation at Light Load.
  • Dual Mode Operation: - Directly From Battery Input, VIN, of 5.6V to 24V or from VCC of 5V.
  • PWM Output Adjustable From 0.9V to 0.93.
  • VIN.
  • Low Drop-Out (LDO) Linear Regulator Operates from Vout+0.5V to 24V.
  • LDO Output Adjustable - From 0.

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Datasheet Details

Part number ISL6226
Manufacturer Intersil (Renesas)
File Size 384.68 KB
Description Advanced PWM and Linear Power Controller for Portable Applications
Datasheet download datasheet ISL6226 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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® ISL6226 Data Sheet August 2002 FN9078.1 Advanced PWM and Linear Power Controller for Portable Applications The ISL6226 provides power control and protection for two user selected output voltages required in high-performance notebook PC applications. The IC integrates a fixed, selectable frequency pulse-width-modulation (PWM) controller and a 3A LDO linear regulator controller with monitoring and protection circuitry in a single 24 lead SSOP package. The PWM controller regulates the battery input voltage to a user selected output voltage. Synchronous converter and hysteretic operation at light loads contribute to a high efficiency over a wide range of input voltage and load variation. Efficiency can be further enhanced by using the lower MOSFET’s rDS(ON) as the current sense element.