4-1

®

HIP6502

Multiple Linear Power Controller

with ACPI Control Interface

The HIP6502 complements either an HIP6020 or an

HIP6021 in ACPI-compliant designs for microprocessor and

computer applications. The IC integrates four linear

controllers/regulators, switching, monitoring and control

functions into a 20-pin SOIC package. One linear controller

supply’s 5VSB output, powering the south bridge and the

PCI slots through an external pass transistor during sleep

states (S3, S4/S5). A second transistor is used to switch in

the ATX 3.3V output for operation during S0 and S1/S2

(active) operating states. Two linear controllers/regulators

supply a choice of either or both of the computer system’s

2.5V or 3.3V memory power through external pass

transistors in active states. During sleep states, integrated

pass transistors supply the sleep power. Another controller

output in active states, and the ATX 5VSB in sleep states.

One internal regulator outputs a dedicated, noise-free 2.5V

clock chip supply. The HIP6502’s operating mode (active

outputs or sleep outputs) is selectable through two digital

control pins, S3 and S5. Enabling sleep state support on the

external N-channel pass MOSFETs to connect the outputs

directly to the 3.3V input supplied by an ATX (or equivalent)

power supply, for minimal losses. In sleep state, power

delivery on both outputs is transferred to NPN transistors -

performed through an external NPN transistor. In sleep

state, conduction on this output is transferred to an internal

external MOS transistors. In sleep states, a PMOS (or PNP)

transistor conducts the current from the ATX 5VSB output;

while in active state, current flow is transferred to an NMOS

transistor connected to the ATX 5V output. The operation of

S3 and S5 pins, but that of the EN5VDL pin as well. The

only active during S0 and S1/S2, and uses the 3V3 pin as

input source for its internal pass element.

Features

• Provides 5 ACPI-Controlled Voltages

• Excellent Output Voltage Regulation

Sleep State Only

sleep only)

• Small Size

- Very Low External Component Count

• Dual Memory Voltage Support Via MSEL Pin

- 2.5V for RDRAM Memory

- 3.3V for SDRAM Memory

- Both 2.5V and 3.3V for Flexible Systems

• Under-Voltage Monitoring of All Outputs with Centralized

FAULT Reporting and Temperature Shutdown

Applications

• Motherboard Power Regulation for ACPI-Compliant

Computers

Pinout

HIP6502

(SOIC)

TOP VIEW

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG.

NO.

HIP6502CB

0 to 70

20 Ld SOIC

M20.3

HIP6502EVAL1

Evaluation Board

14

15

16

17

18

19

20

7

6

5

4

3

2

1

5VSB

VSEN1

VCLK

3V3DLSB

3V3DL

VSEN2

MSEL

5V

5VDLSB

12V

DLA

SS

3V3

DRV2

EN5VDL

5VDL

13

8

11

12

10

9

S3

S5

FAULT

GND

Data Sheet

July 2000

File Number 4775.2

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

1-888-INTERSIL or 321-724-7143

Copyright © Intersil Americas Inc. 2002. All Rights Reserved

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