ISL6432

Features: * Provides 4 Regulated Voltages - Memory Core, Embedded Controller/DSP, Tuner* Drives Bipolar Linear Pass Transistors* Externally Resistor-Adjustable Outputs* Simple Single-Loop Control Design - Voltage-Mode PWM Control* Fast PWM Converter Transient Response - High-Bandwidth Error Amplif...

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ISL6432 Picture
SeekIC No. : 004380284 Detail

ISL6432: Features: * Provides 4 Regulated Voltages - Memory Core, Embedded Controller/DSP, Tuner* Drives Bipolar Linear Pass Transistors* Externally Resistor-Adjustable Outputs* Simple Single-Loop Control De...

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Part Number:
ISL6432
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/21

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Product Details

Description



Features:

* Provides 4 Regulated Voltages
   - Memory Core, Embedded Controller/DSP, Tuner
* Drives Bipolar Linear Pass Transistors
* Externally Resistor-Adjustable Outputs
* Simple Single-Loop Control Design
   - Voltage-Mode PWM Control
* Fast PWM Converter Transient Response
   - High-Bandwidth Error Amplifier
   - Full 0% to 100% Duty Ratio
* Excellent Output Voltage Regulation
   - All Outputs: ±2% Over Temperature
* Overcurrent Fault Monitors
   - Switching Regulator Does Not Require Extra Current
   Sensing Element, Uses MOSFET's r DS(ON)
*Small Converter Size
   - 300kHz Constant Frequency Operation
   - Small External Component Count
* ACPI Compatible
* Voltage Sequencing



Application

* Low-Power Distributed DC-DC Conversion
* Cable Modem and DSL Modem Power Regulation
* High Performance Memory Applications



Pinout

  Connection Diagram


Specifications

UGATE, BOOT. . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to 15V
VCC , PHASE . . . . . . . . . . . . . . . . . .. . . . . . .GND - 0.3V to +7V
DRIVE, LGATE, All Other Pins. . . .  .  GND - 0.3V to VCC  + 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Class 2
Operating Conditions
Supply Voltage on VCC  . . . . . . . . . . . . . . . . . . . . . +5V  ±10%
Ambient Temperature Range. . . . .  . . . . . . . . .  0o  C to 70 o C
Junction Temperature Range. . . . . . .  . . . . . .  0o  C to 125o  C



Description

The ISL6432 provides the power control and protection for  four output voltages for use with high-performance  microprocessor and embedded controller based  communications chip sets. The IC ISL6432 integrates a voltage-mode  PWM controller and three linear controllers, as well as  monitoring and protection functions into a 16-lead SOIC  package. The PWM controller ISL6432 is intended to regulate the  microprocessor memory core voltage with a synchronousrectified buck converter. The linear controllers ISL6432 can be  configured to generate DSP power, as well as upstream and  downstream voltages. Both the switching regulator and
linear voltage references provide ±2% of static regulation  over line, load, and temperature ranges. All outputs are useradjustable by means of an external resistor divider. All linear  controllers employ bipolar NPNs for the pass transistors.

The ISL6432 monitors all the output voltages. The PWM  controller's adjustable overcurrent function monitors the  output current by using the voltage drop across the upper  MOSFET's r . The linear regulator outputs are  DS(ON) monitored via the FB pins for undervoltage events.


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