1

TM

File Number

4882.1

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

1-888-INTERSIL or 321-724-7143

HIP6503

Multiple Linear Power Controller with

ACPI Control Interface

The HIP6503 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. A linear controllers/regulator

supplies at choice either of 2.5V or 3.3V memory power

through external pass transistors (switch for 3.3V setting) 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.

Two internal regulators output both a dedicated, noise-free

2.5V clock chip supply, as well as a 1.8V ICH2 resume well

voltage. The HIP6503’s operating mode (active outputs or

sleep outputs) is selectable through two digital control pins,

output is offered through the EN5VDL pin. In active state, the

use external N-channel pass MOSFETs to connect the

outputs directly to the 3.3V input supplied by an ATX power

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

both outputs is transferred to NPN transistors - external to

output is performed through an external NPN transistor. The

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

output is 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

• Small Size

- Very Low External Component Count

• Dual Memory Voltage Selection Via FAULT/MSEL Pin

- 2.5V for RDRAM Memory

- 3.3V for SDRAM Memory

• Undervoltage Monitoring of All Outputs with Centralized

FAULT Reporting and Temperature Shutdown

Applications

• Motherboard Power Regulation for ACPI-Compliant

Computers

Pinout

HIP6503

(SOIC)

TOP VIEW

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG.

NO.

HIP6503CB

0 to 70

20 Ld SOIC

M20.3

HIP6503EVAL1

Evaluation Board

14

15

16

17

18

19

20

7

6

5

4

3

2

1

1V8IN

1V8SB

VCLK

3V3DLSB

3V3DL

5VSB

VSEN2

5V

5VDLSB

12V

DLA

SS

3V3

DRV2

EN5VDL

5VDL

13

8

11

12

10

9

S3

S5

FAULT/MSEL

GND

Data Sheet

June 2000