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LP5907 bảng dữ liệu(PDF) 17 Page - Texas Instruments

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tên linh kiện LP5907
Giải thích chi tiết về linh kiện  Ultralow-Noise, 250-mA Linear Regulator
PDF  36 Pages
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nhà sản xuất  TI1 [Texas Instruments]
Trang chủ  http://www.ti.com
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LP5907 bảng dữ liệu(HTML) 17 Page - Texas Instruments

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VIN
VOUT
Power Ground
VEN
CIN
COUT
LP5907SN
1
2
3
4
IN
GND
EN
OUT
N/C
CIN
COUT
1
2
3
4
5
VIN
GND
Enable
VOUT
GND
17
LP5907
www.ti.com
SNVS798J – APRIL 2012 – REVISED MARCH 2016
Product Folder Links: LP5907
Submit Documentation Feedback
Copyright © 2012–2016, Texas Instruments Incorporated
10 Layout
10.1 Layout Guidelines
The dynamic performance of the LP5907 is dependant on the layout of the PCB. PCB layout practices that are
adequate for typical LDOs may degrade the PSRR, noise, or transient performance of the LP5907.
Best performance is achieved by placing CIN and COUT on the same side of the PCB as the LP5907, and as
close to the package as is practical. The ground connections for CIN and COUT must be back to the LP5907
ground pin using as wide and short a copper trace as is practical.
Connections using long trace lengths, narrow trace widths, and/or connections through vias must be avoided.
These add parasitic inductances and resistance that results in inferior performance especially during transient
conditions
10.2 Layout Examples
Figure 24. LP5907MF-x.x (SOT-23) Typical Layout
Figure 25. LP5907SN-xx (X2SON) Typical Layout



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