ISL95831IRTZ-T datasheet, PDF - EEWORLD Datasheet

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ISL95831IRTZ-T: DescriptionSWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQCC48; Categorysemiconductor Analog mixed-signal IC; File Size139KB，2 Pages; ManufacturerIntersil ( Renesas ); Websitehttp://www.intersil.com/cda/home/

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ISL95831IRTZ-T Overview

SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQCC48

ISL95831IRTZ-T Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	48
Rated input voltage	5 V
Maximum limit input voltage	5.25 V
Minimum limit input voltage	4.75 V
Maximum operating temperature	100 Cel
Minimum operating temperature	-40 Cel
Processing package description	6 × 6 MM, ROHS COMPLIANT, plastic, TQFN-48
Lead-free	Yes
EU RoHS regulations	Yes
state	ACTIVE
packaging shape	SQUARE
Package Size	Chip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
surface mount	Yes
Terminal form	NO
Terminal spacing	0.4000 mm
terminal coating	MATTE Tin
Terminal location	Four
Packaging Materials	Plastic/Epoxy
Temperature level	INDUSTRIAL
control mode	PEAK current
Control Technology	HYSTERETIC current mode
Analog IC other types	switch controller
Switch configuration	push-pull
Maximum switching frequency	500 kHz

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ISL95831 3+1 Voltage Regulator for IMVP-7/VR12 CPUs

Page 1 of 2

ISL95831

Print Page

3+1 Voltage Regulator for IMVP-7/VR12 CPUs

Features Description

Technical Documentation

Pricing / Samples

iSim Design Simulation

Tools And Support

Related Devices

Datasheet

ISL95831

3+1 Voltage Regulator for IMVP-7/VR12 CPUs

(min) (V)

(max) (V)

OUT

(min) (V)

OUT

(max) (V)

OUT

(max) (A)

BIAS

(V)

Applications

Max # of outputs

Max # of phases

Droop

Integrated MOSFET Driver

4.5

.25

1.52

VR12/IMVP7

Product Information

Key Features

Serial Data Bus

Dual Outputs:

Configurable 3-, 2- or 1-phase for the 1st Output using 2 integrated Gate Drivers

1-phase for the 2nd Output using an Integrated Gate Driver

0.5% System Accuracy Over-Temperature

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

MAX

, T

MAX

for Both Outputs

Adaptive Body Diode Conduction Time Reduction

Description

Compliant with IMVP-7/VR12™, the ISL95831 provides a complete solution for microprocessor and graphic processor

core power supply. It provides two Voltage Regulators (VRs) with three integrated gate drivers. The first VR can be

configured as

3-, 2- or 1-phase VR while the second output is 1- phase VR, providing maximum flexibility. The two VRs share the

serial control bus to communicate with the CPU and achieve lower cost and smaller board area compared with the two-

chip approach.

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 it’s ability to automatically change switching frequency.

The ISL95831 has several other key features. Both outputs support DCR current sensing with single NTC thermistor for

DCR temperature compensation or accurate resistor current sensing. Both outputs come with remote voltage sense,

programmable VBOOT voltage, programmable I

MAX

, T

MAX

, adjustable switching frequency, OC protection and separate

Power-Good.

http://www.intersil.com/products/print.asp?id=ISL95831

11/8/2011

ISL95831IRTZ-T Related Products

	ISL95831IRTZ-T	ISL6353	ISL6363	ISL6364C	ISL95831	ISL95835	ISL95837
Description	SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQCC48	SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQCC48	SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQCC48	SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQCC48	SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQCC48	SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQCC48	SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQCC48
Number of functions	1	1	1	1	1	1	1
Number of terminals	48	48	48	48	48	48	48
Rated input voltage	5 V	5 V	5 V	5 V	5 V	5 V	5 V
Maximum limit input voltage	5.25 V	5.25 V	5.25 V	5.25 V	5.25 V	5.25 V	5.25 V
Minimum limit input voltage	4.75 V	4.75 V	4.75 V	4.75 V	4.75 V	4.75 V	4.75 V
Maximum operating temperature	100 Cel	100 Cel	100 Cel	100 Cel	100 Cel	100 Cel	100 Cel
Minimum operating temperature	-40 Cel	-10 Cel	-10 Cel	-10 Cel	-10 Cel	-10 Cel	-10 Cel
Processing package description	6 × 6 MM, ROHS COMPLIANT, plastic, TQFN-48	6 X 6 MM, ROHS COMPLIANT, PLASTIC, TQFN-48	6 X 6 MM, ROHS COMPLIANT, PLASTIC, TQFN-48	6 X 6 MM, ROHS COMPLIANT, PLASTIC, TQFN-48	6 X 6 MM, ROHS COMPLIANT, PLASTIC, TQFN-48	6 X 6 MM, ROHS COMPLIANT, PLASTIC, TQFN-48	6 X 6 MM, ROHS COMPLIANT, PLASTIC, TQFN-48
Lead-free	Yes	Yes	Yes	Yes	Yes	Yes	Yes
EU RoHS regulations	Yes	Yes	Yes	Yes	Yes	Yes	Yes
state	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE
packaging shape	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE
Package Size	Chip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
surface mount	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Terminal form	NO	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD
Terminal spacing	0.4000 mm	0.4000 mm	0.4000 mm	0.4000 mm	0.4000 mm	0.4000 mm	0.4000 mm
terminal coating	MATTE Tin	MATTE TIN	MATTE TIN	MATTE TIN	MATTE TIN	MATTE TIN	MATTE TIN
Terminal location	Four	QUAD	QUAD	QUAD	QUAD	QUAD	QUAD
Packaging Materials	Plastic/Epoxy	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
Temperature level	INDUSTRIAL	OTHER	OTHER	OTHER	OTHER	OTHER	OTHER
control mode	PEAK current	PEAK CURRENT	PEAK CURRENT	PEAK CURRENT	PEAK CURRENT	PEAK CURRENT	PEAK CURRENT
Control Technology	HYSTERETIC current mode	HYSTERETIC CURRENT MODE	HYSTERETIC CURRENT MODE	HYSTERETIC CURRENT MODE	HYSTERETIC CURRENT MODE	HYSTERETIC CURRENT MODE	HYSTERETIC CURRENT MODE
Analog IC other types	switch controller	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER
Switch configuration	push-pull	PUSH-PULL	PUSH-PULL	PUSH-PULL	PUSH-PULL	PUSH-PULL	PUSH-PULL
Maximum switching frequency	500 kHz	500 kHz	500 kHz	500 kHz	500 kHz	500 kHz	500 kHz

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