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MFG:INTERSIL  Package Cooled:SOP  D/C:03+  

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Part Number: HIP6521

 

MFG: INTERSIL

Package Cooled: SOP

D/C: 03+

Description: The HIP6521 provides the power control and protection for four output voltages in high-performance microprocessor and c...


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HIP6521 General Description


The HIP6521 provides the power control and protection for four output voltages in high-performance microprocessor and computer applications. The IC integrates a voltagemode PWM controller and three linear controllers, as well as monitoring and protection functions into a 16-lead SOIC package. The PWM controller is intended to regulate the microprocessor memory core voltage with a synchronousrectified buck converter. The linear controllers are intended to regulate the computer system's AGP 1.5V bus power, the 2.5V clock power, and the 1.8V power for the North/South Bridge core voltage and/or cache memory circuits. Both the switching regulator and linear voltage references provide ±2% of static regulation over line, load, and temperature ranges. All outputs are user-adjustable by means of an external resistor divider. All linear controllers employ bipolar NPNs for the pass transistors.

The HIP6521 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 rDS(ON). The linear regulator outputs are monitored via the FB pins for undervoltage events.

HIP6521 Maximum Ratings

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 . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . TBD

HIP6521 Features

• Provides 4 Regulated Voltages
       - Memory Core, AGP, Clock, and Memory Controller Hub Power
• ACPI Compatible
• 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 rDS(ON)
• Small Converter Size
       - 300kHz Constant Frequency Operation
       - Small External Component Count

HIP6521 Typical Application

• Motherboard Power Regulation for Computers

HIP6521 Connection Diagram

HIP6521 Connection Diagram

HIP6521 datasheet

HIP6521
PDF/DataSheet Download

Find HIP6521 Suppliers

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  • INTERSIL [Intersil Corporation] 
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  • INTERSIL [Intersil Corporation] 
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