参数资料
型号: TPS62660YFFR
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 1.75 A SWITCHING REGULATOR, 6600 kHz SWITCHING FREQ-MAX, BGA6
封装: GREEN, DSBGA-6
文件页数: 14/30页
文件大小: 791K
代理商: TPS62660YFFR
MODE
ENABLE
C
I
L
V
IN
C
O
V
OUT
GND
www.ti.com
SLVS871B – FEBRUARY 2010 – REVISED SEPTEMBER 2010
LAYOUT CONSIDERATIONS
As for all switching power supplies, the layout is an important step in the design. High-speed operation of the
TPS6266x devices demand careful attention to PCB layout. Care must be taken in board layout to get the
specified performance. If the layout is not carefully done, the regulator could show poor line and/or load
regulation, stability and switching frequency issues as well as EMI problems. It is critical to provide a low
inductance, impedance ground path. Therefore, use wide and short traces for the main current paths.
The input capacitor should be placed as close as possible to the IC pins as well as the inductor and output
capacitor. In order to get an optimum ESL step, the output voltage feedback point (FB) should be taken in the
output capacitor path, approximately 1mm away for it. The feed-back line should be routed away from noisy
components and traces (e.g. SW line).
Figure 42. Suggested Layout (Top)
Copyright 2010, Texas Instruments Incorporated
21
Product Folder Link(s): TPS62660 TPS62665
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TPS62665YFFT 功能描述:直流/直流开关转换器 1000mA6MHz Synch Step-Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
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