HIP6017CB Intersil Corporation, HIP6017CB Datasheet

HIP6017CB

Manufacturer Part Number

HIP6017CB

Description

Manufacturer

Intersil Corporation

Datasheet

1.HIP6017CB.pdf (14 pages)

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Advanced PWM and Dual Linear Power

Control

The HIP6017 provides the power control and protection for

three output voltages in high-performance microprocessor

and computer applications. The IC integrates a PWM

controller, a linear regulator and a linear controller as well as

the monitoring and protection functions into a single 28 lead

SOIC package. The PWM controller regulates the

microprocessor core voltage with a synchronous-rectified

buck converter. The linear controller regulates power for the

GTL bus and the linear regulator provides power for the

clock driver circuits.

The HIP6017 includes an Intel-compatible, TTL 5-input

digital-to-analog converter (DAC) that adjusts the core PWM

output voltage from 2.1V

and from 1.8V

reference and voltage-mode control provide r1% static

regulation. The linear regulator uses an internal pass device

to provide 2.5V r2.5%. The linear controller drives an

external N-Channel MOSFET to provide 1.5V r2.5%.

The HIP6017 monitors all the output voltages. A single

Power Good signal is issued when the core is within r10% of

the DAC setting and the other levels are above their under-

voltage levels. Additional built-in over-voltage protection for

the core output uses the lower MOSFET to prevent output

voltages above 115% of the DAC setting. The PWM over-

current function monitors the output current by using the

voltage drop across the upper MOSFET’s r

eliminating the need for a current sensing resistor.

Pinout

FAULT/RT

PGOOD

GND2

VID4

VID3

VID2

VID1

VID0

FB2

V33

to 2.05V

HIP6017 (SOIC)

TOP VIEW

210

to 3.5V

in 0.05V steps. The precision

Data Sheet

in 0.1V increments

VCC

UGATE1

PHASE1

LGATE1

PGND

OCSET1

VSEN1

FB1

COMP1

FB3

GATE3

GND

VOUT2

VIN2

DS(ON)

, thus

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

Features

• Provides 3 Regulated Voltages

• Drives N-Channel MOSFETs

• Operates from +3.3V, +5V and +12V Inputs

• Simple Single-Loop PWM Control Design

• Fast Transient Response

• Excellent Output Voltage Regulation

• TTL-Compatible 5-Bit Digital-to-Analog Core Output

• Power-Good Output Voltage Monitor

• Microprocessor Core Voltage Protection Against Shorted

• Over-Voltage and Over-Current Fault Monitors

• Small Converter Size

Applications

• Full Motherboard Power Regulation for Computers

• Low-Voltage Distributed Power Supplies

Ordering Information

HIP6017CB

HIP6017EVAL1

PART NUMBER

- Microprocessor Core, Clock and GTL Power

- Voltage-Mode Control

- High-Bandwidth Error Amplifier

- Full 0% to 100% Duty Ratios

- Core PWM Output: r1% Over Temperature

- Other Outputs: r2.5% Over Temperature

Voltage Selection

- Wide Range . . . . . . . . . . . . . . . . . . . 1.8V

- 0.1V Steps . . . . . . . . . . . . . . . . . . . . 2.1V

- 0.05V Steps . . . . . . . . . . . . . . . . . . 1.8V

MOSFET

- Does Not Require Extra Current Sensing Element,

- Constant Frequency Operation

- 200kHz Free-Running Oscillator; Programmable from

Uses MOSFET’s r

50kHz to over 1MHz

April 1999

Evaluation Board

Intersil (and design) is a trademark of Intersil Americas Inc.

TEMP. RANGE

DS(ON)

0 to 70

(

28 Ld SOIC

PACKAGE

HIP6017

FN4496.1

to 2.05V

M28.3

PKG. NO.

to 3.5V

Related parts for HIP6017CB

HIP6017CB Summary of contents

Page 1

... Full Motherboard Power Regulation for Computers 27 UGATE1 • Low-Voltage Distributed Power Supplies 26 PHASE1 25 LGATE1 Ordering Information 24 PGND 23 OCSET1 PART NUMBER 22 VSEN1 HIP6017CB 21 FB1 20 COMP1 HIP6017EVAL1 19 FB3 18 GATE3 17 GND 16 VOUT2 15 VIN2 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. ...

Page 2

Block Diagram FB3 GATE3 0.3V - V33 + INHIBIT VIN2 + - + 1.26V + VOUT2 - - 0.23A FB2 FAULT VIN2 - + + 2. 4. VSEN1 LINEAR 110% UNDER- VOLTAGE + + - ...

Page 3

Simplified Power System Diagram +5V IN +3. OUT2 V OUT3 Typical Application +12V IN + +3. OUT2 2.5V C OUT2 Q3 V OUT3 1.5V C OUT3 212 HIP6017 LINEAR REGULATOR PWM1 ...

Page 4

Absolute Maximum Ratings Supply Voltage .+15V CC ...

Page 5

Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. Refer to Figures 1, 2 and 3 (Continued) PARAMETER Slew Rate PWM CONTROLLER GATE DRIVER Upper Drive Source Upper Drive Sink Lower Drive Source Lower Drive Sink PROTECTION V Over-Voltage Trip OUT1 ...

Page 6

SS (Pin 12) Connect a capacitor from this pin to ground. This capacitor, along with an internal 11PA current source, sets the soft- start interval of the converter. Pulling this pin low with an open drain signal will shutdown the ...

Page 7

MOSFET (Q3) to supply the GTL bus power (V ). OUT3 Initialization The HIP6017 automatically initializes upon receipt of input power. By the time the soft-start (SS) voltage reaches 4V, the 3.3V input has to be high ...

Page 8

A comparator indicates when C fully charged (UP signal), such that an under-voltage event on either linear output (FB2 or FB3) is ignored until after the soft-start interval (T4 in Figure 6). At start-up, this allows ...

Page 9

For an equation for the output inductor ripple current see the section under component guidelines titled ‘Output Inductor Selection’. OVER-CURRENT TRIP: V > SET ( (ON) > I • OCSET OCSET OCSET ...

Page 10

Consider example, the turnoff transition of the upper PWM MOSFET. Prior to turnoff, the upper MOSFET was carrying the full load current. During the turnoff, current ...

Page 11

The modulator transfer function is the small-signal transfer function This function is dominated OUT E/A gain and the output filter, with a double pole break frequency at F and a zero at F ...

Page 12

ESR available in larger case sizes. However, the equivalent series inductance of these capacitors increases with case size and can reduce the usefulness of the capacitor to high slew-rate transient loading. Unfortunately, ESL is not ...

Page 13

These capacitors must be capable of handling the surge-current at power-up. The TPS series available from AVX, and the 593D series from Sprague are both surge current tested. MOSFET ...

Page 14

... Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

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