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TPS62177DQCR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
稳压芯片
封装:
WSON-10
描述:
TEXAS INSTRUMENTS TPS62177DQCR 直流-直流开关降压, 逐步递降稳压器, 可调, 4.75V-28V输入, 1V-6V/500mA输出, 1MHz, WSON-10 新
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TPS62177DQCR数据手册
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TPS62175
VIN
EN
SLEEP
AGND
PGND
SW
VOS
PG
FB
NC
4.75 to 28V
VOUT/0.5A
10uH
22uF2.2uF
100k
R1
R2
TPS62175
,
TPS62177
www.ti.com
SLVSB35C –OCTOBER 2012–REVISED JULY 2015
9 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
9.1 Application Information
The TPS6217x is a high-efficiency synchronous step-down DC-DC converter, based on the DCS-Control
topology.
With a wide operating input voltage range of 4.75 V to 28 V, the device is ideally suited for systems powered
from multi cell Li-Ion as well as 12 V and even higher intermediate supply rails, providing up to 500-mA output
current.
9.2 Typical Application
Figure 8. Adjustable 0.5-A Power Supply
9.2.1 Design Requirements
The device operates for an input voltage range of 4.75 V to 28 V. The output voltage is adjustable, using an
external resistive divider, or internally fixed.
The graphs were generated using the setup according to Figure 8. Table 1 shows the list of components used for
the setup.
9.2.2 Detailed Design Procedures
Table 1. List of Components
REFERENCE DESCRIPTION MANUFACTURER
IC 28 V, 0.5-A Step-Down Converter, WSON TPS62175DQC, Texas Instruments
L1 10 uH, (4 × 4 × 1.2) mm LPS4012, Coilcraft
Cin 2.2 µF, 50 V, Ceramic, 0805, X5R Standard
Cout 22 µF, 6.3 V, Ceramic, 0805, X5R Standard
R1 depending on V
OUT
R2 depending on V
OUT
R3 100 kΩ, Chip, 0603, 1/16 W, 1% Standard
Copyright © 2012–2015, Texas Instruments Incorporated Submit Documentation Feedback 13
Product Folder Links: TPS62175 TPS62177
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