Datasheet > IRDCIP1203-A

IRDCIP1203-A

更新时间： 2024-11-06 22:58:07

品牌	Logo	应用领域
英飞凌 - INFINEON		/
页数	文件大小	规格书
14页	1072K
描述
IP1203 REFERENCE DESIGN KIT

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IRDCIP1203-A 数据手册

International Rectifier • 233 Kansas Street, El Segundo, CA 90245 USA

IRDCiP1203-A: 400kHz, 15A, Synchronous

Buck Converter Using iP1203

Overview

This reference design is capable of delivering a continuous current of 15A (with

heatsink) or 12A (without heatsink) at an ambient temperature of 45ºC and airflow

of 300LFM. Figures 1–20 provide performance graphs, thermal images, and

waveforms. Figures 21–33 and Table 1 are provided to engineers as design

references for implementing an iP1203 solution.

The components installed on this demoboard were selected based on operating at

an input voltage of 12V (+/-10%) and a switching frequency of 400kHz (+/-15%).

Major changes from these set points may require optimizing the control loop

and/or adjusting the values of input/output filters in order to meet the user’s

specific application requirements. Refer to the iP1203 datasheet User Design

Guidelines section for more information.

Note: The 16-pin connector (CON1) is used only for production test purposes and

should not be used for evaluation of this demoboard.

(Photo shown without heatsink)

Demoboard Quick Start Guide

Initial Settings:

VOUT is set to 1.8V, but can be adjusted from 1.0V to 3.3V by changing the values of R3 and R7 according to the following

formula:

R3 = R7 = (15k * 0.8) / (VOUT - 0.8)

The switching frequency is set to 400kHz, but can be adjusted by changing the value of R10. The graph in Figure 22 shows the

relationship between R10 and the switching frequency.

Power Up Procedure:

1. Apply input voltage across VIN and PGND.

2. Apply load across VOUT pads and PGND pads.

3. Adjust load to desired level. See recommendations below.

IRDCiP1203-A Recommended Operating Conditions

(refer to the iP1203 datasheet for maximum operating conditions)

Input voltage:

Output voltage:

Switching Freq:

Output current:

5.5V – 13.2V

1.0 – 3.3V

400kHz

This reference design is capable of delivering a continuous current of 15A (with heatsink) or 12A

(without heatsink) at an ambient temperature of 45ºC and airflow of 300LFM.

11/30/04

12 3 4 5 6 7...14

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