参数资料
型号: IRDC3899
厂商: International Rectifier
文件页数: 1/17页
文件大小: 0K
描述: BOARD EVAL SUPIRBUCK IR3899
产品培训模块: SupIRBuck? Family and POL Design Tools Overview
标准包装: 1
系列: SupIRBuck™
主要目的: DC/DC,步降
输出及类型: 1,非隔离
输出电压: 1.2V
电流 - 输出: 9A
输入电压: 12V
稳压器拓扑结构: 降压
频率 - 开关: 600kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: IR3899
Sup IR Buck
IRDC3899-P1V2
TM
USER GUIDE FOR IR3899 EVALUATION BOARD
1.2Vout
DESCRIPTION
The IR3899 is a synchronous buck
converter, providing a compact, high
performance and flexible solution in a small
4mm X 5 mm Power QFN package.
Key features offered by the IR3899 include
internal Digital Soft Start/Soft Stop, precision
0.5Vreference voltage, Power Good ,
thermal protection, programmable switching
frequency, Enable input, input under-voltage
lockout for proper start-up, enhanced line/
load regulation with feed forward, external
Output over-current protection function is
implemented by sensing the voltage developed
across the on-resistance of the synchronous
Mosfet for optimum cost and performance and
the current limit is thermally compensated.
This user guide contains the schematic and bill
of materials for the IR3899 evaluation board.
The guide describes operation and use of the
evaluation board itself. Detailed application
information for IR3899 is available in the
IR3899 data sheet.
frequency synchronization with smooth
clocking, internal LDO and pre-bias start-
up.
BOARD FEATURES
? V in = +12V (+ 13.2V Max)
?V out = +1.2V @ 0- 9A
? F s =600kHz
? L= 0.51uH
? C in = 4x10uF (ceramic 1206) + 1X330uF (electrolytic)
? C out =6x22uF (ceramic 0805)
12/5/2012
1
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