FN9108 Rev 1.00

Page 1 of 2

March 2004

FN9108

Rev 1.00

March 2004

ISL6216

Precise 2-Phase Buck PWM Controller for Intel® Mobile Voltage Positioning

IMVP-IV™

DATASHEET

To request the full datasheet, please visit www.intersil.com/products/isl6216

The ISL6216 2-Phase Buck PWM control IC, with ISL6206

or ISL6207 half bridge gate drivers, provides a precision

voltage regulation system for advanced microprocessors in

notebook computers. Two phase operation and discrete

external gate drivers address the thermal management

issues and load demand of Intel’s latest high performance

processors. This control IC features both input voltage feed-

forward and average current mode control for excellent

dynamic response, lossless current sensing using the lower

MOSFET’s rDS(ON), and user selectable switching

frequencies from 200kHz to 1MHz.

The ISL6216 includes a 6 bit digital-to-analog converter

(DAC) that dynamically adjusts the CORE PWM output

voltage from 0.700V to 1.708V and conforms to the Intel

IMVP-IV mobile VID specification. The ISL6216 also has

logic inputs to detect between Active mode and Deep Sleep/

Deeper Sleep suspend modes. To improve efficiency at light

load operation, single channel PWM is available during

Deeper Sleep operation. A precision reference, remote

sensing and proprietary architecture with programmable

droop compensation, provide excellent static and dynamic

CORE voltage regulation.

Another feature of this controller IC is the PG_IN monitor

circuit which allows a companion VCCP and VCC_MCH

controller to inhibit the ISL6216 PGOOD until the VCCP and

VCC_MCH voltages are within regulation. The Over-Voltage

threshold is 1.724V, and CORE output voltage above this

level results in converter shutting down. Under-Voltage, at

86% of the programmed level, results in PGOOD being

pulled low. Over-Current protection features pulse by pulse

current limiting. PG_IN, PGOOD, Over-Voltage, Under-

Voltage and Over-Current features provide monitoring and

protection for the microprocessor and power system.

The ISL6216 IC package is available in 28 lead SSOP.

Ordering Information

Features

• 2-Phase or Single Phase Power Conversion

• High Efficiency Current Sensing

- Option for thermal compensation

- Optional Current-Sense Resistor for Precision Over-

Current

• Precision CORE Voltage Regulation

- 1% System Accuracy Over Temperature

• Microprocessor Voltage Identification Input

- 6-Bit VID Input

- 0.700V to 1.708V in 16mV steps

- Programmable Droop Voltage

• DSEN# (STP_CPU#) and DRSEN (DPRSLPVR) logic

inputs for low power states

• DSV voltage input for DEEP SLEEP Mode

• DRSV voltage input for DEEPER SLEEP Mode

• Programmable slew rate control on output voltage

• Excellent Dynamic Response

- Combined Input Voltage Feed-Forward, Average

Current Mode Control and Output Voltage Feedback

• Over-Voltage, Under-Voltage and Over-Current Protection

• 2 or 1 Phase User Selectable Operation

• Power-Good Output and PG_IN input

• User selectable Switching Frequency of 200kHz -1MHz

- 400kHz - 2.0 MHz Effective Ripple Frequency

Pinout

ISL6216 (28 LEAD SSOP)

TOP VIEW

PART NUMBER

TEMP. (°C)

PACKAGE

PKG. DWG. #

ISL6216CA

-10 to 85

28 Lead SSOP M28.15

VCC

PGOOD

RAMPS

VSEN

VRTN

PG_IN

ISEN1

PWM1

PWM2

ISEN2

DRSEN

DSEN#

OCSET

DSV

28

27

26

25

24

23

22

21

20

19

18

17

16

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

VID 0

VID 1

VID 2

VID 3

VID 4

VID 5

VMON

FB

COMP

FS-EN

STV

DRSV

SOFT

GND

Data Sheet

NOT RECOMMENDED FOR NEW DESIG

NS

NO RECOMMENDED REPLACEMENT

contact our Technical Support Center

at

1-888-INTERSIL or www.intersil.com/ts

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