HIP6017BCB Intersil Corporation, HIP6017BCB Datasheet

HIP6017BCB

Manufacturer Part Number

HIP6017BCB

Description

Advanced PWM and Dual Linear Power Control

Manufacturer

Intersil Corporation

Datasheet

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Advanced PWM and Dual Linear Power

Control

The HIP6017B 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 HIP6017B includes an Intel-compatible, TTL 5-input

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

output voltage from 2.1VDC to 3.5VDC in 0.1V increments

and from 1.3VDC to 2.05VDC in 0.05V steps. The precision

reference and voltage-mode control provide 1% static

regulation. The linear regulator uses an internal pass device

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

external N-Channel MOSFET to provide 1.5V 2.5%.

The HIP6017B monitors all the output voltages. A single

Power Good signal is issued when the core is within 10% 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

PRELIMINARY

FAULT/RT

PGOOD

GND2

VID4

VID3

VID2

VID1

VID0

FB2

V33

HIP6017B (SOIC)

TOP VIEW

Data Sheet

VCC

UGATE1

PHASE1

LGATE1

PGND

OCSET1

VSEN1

FB1

COMP1

FB3

DRIVE3

GND

VOUT2

VIN2

DS(ON)

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

Features

• Provides 3 Regulated Voltages

• Linear Controller Drives Either N-Channel MOSFETs or

• 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

HIP6017BCB

www.intersil.com or 407-727-9207

PART NUMBER

- Microprocessor Core, Clock and GTL Power

Bipolar Transistors

- Voltage-Mode Control

- High-Bandwidth Error Ampliﬁer

- Full 0% to 100% Duty Ratios

- Core PWM Output: 1% Over Temperature

- Other Outputs: 2.5% Over Temperature

Voltage Selection

- Wide Range - 1.3V

- 0.1V Steps from 2.1V

- 0.05V Steps from 1.3V

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

March 1999

RANGE (

DS(ON)

TEMP.

0 to 70

to 3.5V

to 2.05V

28 Ld SOIC

File Number 4585

PACKAGE

HIP6017B

Intersil Corporation 1999

M28.3

PKG.

NO.

Related parts for HIP6017BCB

HIP6017BCB Summary of contents

Page 1

... Full Motherboard Power Regulation for Computers 26 PHASE1 • Low-Voltage Distributed Power Supplies 25 LGATE1 24 PGND Ordering Information 23 OCSET1 22 VSEN1 PART NUMBER 21 FB1 HIP6017BCB 20 COMP1 19 FB3 18 DRIVE3 17 GND 16 VOUT2 15 VIN2 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. www.intersil.com or 407-727-9207 HIP6017B ...

Page 2

Block Diagram FB3 DRIVE3 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 3 HIP6017B 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 PWM CONTROLLER ERROR AMPLIFIER DC Gain Gain-Bandwidth Product Slew Rate PWM CONTROLLER GATE DRIVER Upper Drive Source Upper Drive Sink Lower Drive Source ...

Page 6

Functional Pin Description VSEN1 (Pin 22) This pin is connected to the PWM converter’s output voltage. The PGOOD and OVP comparator circuits use this signal to report output voltage status and for over-voltage protection. OCSET1 (Pin 23) Connect a resistor ...

Page 7

Description Operation The HIP6017B monitors and precisely controls 3 output voltage levels (Refer to Figures 1, 2, and 3 designed for microprocessor computer applications with 3.3V and 5V power and 12V bias input from an ATX power supply. ...

Page 8

LUV OVER CURRENT LATCH S Q OC1 R S 0.15V + COUNTER - POR OV FIGURE 7. FAULT LOGIC - SIMPLIFIED SCHEMATIC soft-start interval (T4 in Figure 6). At start-up, this allows V and ...

Page 9

R resistor from the equation OCSET above with: 1. The maximum r at the highest junction temperature. DS(ON) 2. The minimum I from the speciﬁcation table. OCSET 3. Determine I for I > I PEAK PEAK OUT(MAX) ...

Page 10

Layout Considerations MOSFETs switch very fast and efﬁciently. The speed with which the current transitions from one device to another causes voltage spikes across the interconnecting impedances and parasitic circuit elements. The voltage spikes can degrade efﬁciency, radiate noise into ...

Page 11

DRIVER OSC PWM COMP V OSC - DRIVER + E ERROR AMP REFERENCE DETAILED FEEDBACK COMPENSATION COMP - FB + HIP6017B REFERENCE FIGURE 11. VOLTAGE-MODE BUCK CONVERTER COMPENSATION DESIGN ...

Page 12

High frequency decoupling capacitors should be placed as close to the power pins of the load as physically possible. Be careful not to add inductance in the circuit board wiring that could cancel the usefulness of these low inductance components. ...

Page 13

RMS current. Small ceramic capacitors should be placed very close to the upper MOSFET to suppress the voltage induced in the parasitic circuit impedances. For a through hole design, several electrolytic capacitors (Panasonic HFQ series or Nichicon PL ...

Page 14

HIP6017B DC-DC Converter Application Circuit Figure 15 shows an application circuit of a power supply for a microprocessor computer system. The power supply provides the microprocessor core voltage (V bus voltage (V ) and clock generator voltage (V OUT3 from ...

Page 15

Small Outline Plastic Packages (SOIC) N INDEX 0.25(0.010) H AREA E - SEATING PLANE - - 0.10(0.004) 0.25(0.010 NOTES: 1. Symbols are defined in the “MO ...

Page 16

... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certiﬁcation. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design 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 reli- able. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

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