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| 型号： | HIP6021EVAL1 |
| 厂商： | Intersil |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD HIP6021 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，LDO 步降 |
| 输出及类型： | 4，非隔离 |
| 输出电压： | 1.3 ~ 3.5V，1.5V，1.8V，1.5V 或 3.3V |
| 电流 - 输出： | 10A，1A，1A，1A |
| 输入电压： | 3.3V，5V，12V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 200kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | HIP6021 |
Motherboard Power Conversion Solutions Using
the HIP6020 and HIP6021 Controller ICs
Application Note
April 1999
AN9836
Introduction
The rapidly changing desktop motherboard architecture for
core processor and Accelerated Graphics Port (AGP)
voltages demand innovative power conversion solutions.
The HIP6020 [1] and HIP6021 [2] controllers provide a
bridge over these challenging power concerns. This
document describes the HIP6020EVAL1 and
HIP6021EVAL1 reference designs, features, and usage
guidelines.
+5V
+12V
VCC_CORE
For high performance AGP systems, the HIP6020EVAL1
monitors and controls a standard buck converter to regulate
the 1.5V or 3.3V Universal AGP Card bus voltage
(VCC_VDDQ). While the HIP6021EVAL1 addresses the
lower performance AGP systems with a third integrated
adjustable linear controller to regulate the 1.5V or 3.3V AGP
core voltage.
FROM ATX
SUPPLY
EMT TOOL
ADJUSTABLE
SYNCHRONOUS BUCK
CONTROLLER
+
DAC
VID0
J2
SLOT 1
TP
VCC_VDDQ
VID1
VID2
VID3
VID4
HIP6020/21EVAL1
FIGURE 2. QUICK START EVALUATION CONNECTIONS
+3.3V
+
+
ADJUSTABLE
STANDARD BUCK
CONTROLLER
ADJUSTABLE
LINEAR
CONTROLLER
ADJUSTABLE
LINEAR
CONTROLLER
THIS BLOCK
INCLUDED IN
HIP6020 ONLY
THIS BLOCK
INCLUDED IN
HIP6021 ONLY
The HIP6020/21 EVAL1 circuit board shows the layout and
traces of the power supply portion of a computer
motherboard. Included on the boards are the ATX input
power connector and a Pentium II, SLOT 1 connector.
Motherboard designers should reference the component
placement and printed circuit routing of the specific circuit
board. Both circuit boards contain jumpers and spare
component placeholders to facilitate detailed evaluation of
the HIP6020 or HIP6021.
+
VCC_VTT
VCC_MCH
+
ADJUSTABLE
LINEAR
CONTROLLER
Quick Start Evaluation
Both evaluation platforms support testing with standard
power supplies or an ATX-style power supply. Simply
connect the ATX supply to J2 connector, see Figure 2, or
connect standard laboratory supplies to the related posts
FIGURE 1. HIP6020/21EVAL1 BLOCK DIAGRAM
Figure 1 presents a simple block diagram of the HIP6020/21
application circuit. The +3.3V, +5V, and +12V power inputs
are provided by an ATX power supply. The HIP6020 [1] and
HIP6021 [2] both monitor and regulate four output voltages.
Both provide a synchronous-rectified buck converter
controller which regulates the microprocessor core voltage
(VCC_CORE) to a level programmed by a 5-bit digital code.
As well as, two adjustable linear controllers which drive
external MOSFETs to supply the 1.5V GTL bus voltage
(VCC_VTT) and 1.8V North/South Bridge core voltage
(VCC_MCH) and/or cache memory. The linear regulators
use the 3.3V from the ATX for their input voltage to minimize
the power dissipated.
1
marked +12VIN, +5VIN, +3.3VIN and GND. No power-up
sequence is required when using standard laboratory power
supplies.
The outputs can be exercised using either resistive loads,
electronic loads, or the Intel Slot 1 EMT tool. Shielded scope
probe test points (TP2, TP5, TP6 and TP8) on the outputs
(VCC_VDDQ, VCC_CORE, VCC_VTT and VCC_MCH)
allow for accurate inspection of the output power quality.
Before proceeding, please consult Table 1 for the evaluation
board’s design envelope characteristics.
1-888-INTERSIL or 1-888-468-3774 | Copyright ? Intersil Corporation 1999
Pentium? is a registered trademark of Intel Corporation.
相关PDF资料 |
PDF描述 |
|---|---|
| HIP6301EVAL2 | EVALUATION BOARD HIP6301 |
| HIP6302EVAL1 | EVALUATION BOARD HIP6302 |
| HIP6521EVAL1 | EVALUATION BOARD HIP6521 |
| HIP6602BCR-T | IC DRVR MOSF 2CH SYC BUCK 16-QFN |
| HIP6603BCBZ | IC DRIVER MOSFET SYNC BUCK 8SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HIP6028 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Advanced PWM and Dual Linear Power Control with Integrated ACPI Support Interface |
| HIP6028CB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HIP6028CB WAF | 制造商:Harris Corporation 功能描述: |
| HIP6028EVAL1 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Advanced PWM and Dual Linear Power Control with Integrated ACPI Support Interface |
| HIP6034CB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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