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ISL95853AHRZ-T

Multiphase PWM Regulator for IMVP8™ CPUs

Manufacturer:

Renesas Electronics Corporation
Mfr.Part #:

ISL95853AHRZ-T
Datasheet:

ISL95853AHRZ-T Datasheet (PDF)
Applications:

IMVP8™ Compliant Notebooks, Desktops
Voltage - Input:

4.5V ~ 25V
Number of Outputs:

1
Voltage - Output:

0.25V ~ 1.52V
EDA/CAD Models:

Request Free CAD Models for ISL95853AHRZ-T

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ISL95853AHRZ-T General Description

The ISL95853A, fully compliant with Intel IMVP8™ specifications, provides a complete solution for microprocessor core power supply. It also provides a Voltage Regulator (VR) with two integrated and one external gate drivers. The VR can be configured as 3-, 2- or 1-phase, providing maximum flexibility. The VR uses the serial control bus (SVID) to communicate with the CPU and achieves lower cost and smaller board area. Based on Intersil’s Robust Ripple Regulator (R3™) technology, the PWM modulator compared to traditional modulators, has faster transient settling time, variable switching frequency during load transients and has improved light-load efficiency with its ability to automatically change switching frequency. The ISL95853A has several other key features. The output supports DCR current sensing with single NTC thermistor for DCR temperature compensation or accurate resistor current sensing. The output comes with remote voltage sense, programmable V_BOOT voltage, programmable I_CCMAX, programmable voltage transition slew rate, adjustable switching frequency, overcurrent protection and power-good output.

Key Features

Serial data bus
Output configurable 3-, 2- or 1-phase using two integrated gate drivers
Precision core voltage regulation
0.5% system accuracy over temperature
Enhanced load line accuracy
Supports multiple current sensing methods
Lossless inductor DCR current sensing
Precision resistor current sensing
Differential remote voltage sensing
Programmable V_BOOT voltage at start-up
Resistor programmable I_CCMAX and voltage transition slew rate
Adaptive body diode conduction time reduction
System input power monitor

Specifications

Series	-	Applications	IMVP8™ Compliant Notebooks, Desktops
Voltage - Input	4.5V ~ 25V	Number of Outputs	1
Voltage - Output	0.25V ~ 1.52V	Operating Temperature	-40°C ~ 100°C
Mounting Type	Surface Mount	Base Product Number	ISL95853