Texas Instruments Evaluation Module for TPS62230, TPS62231, TPS62232 Ultra Small Step Down Converter 1.2V, 1.8V, 2.5V TP TPS62230EVM-574 데이터 시트
제품 코드
TPS62230EVM-574
Board Layout
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Board Layout
This section provides the TPS62230EVM-574 board layout and illustrations.
Board layout is critical for all high-frequency, switch-mode power supplies.
,
, and
show the board layout for the TPS62230EVM-574 printed-circuit board. The nodes with high-
switching frequencies and currents are kept as short as possible to minimize trace inductance. High-
impedance inputs to the TPS6223X, such as the Vout pin, have traces that are shielded by ground traces
and planes. Careful attention has been given to the routing of high-frequency current loops, and a single-
point grounding scheme is used. See the data sheet for specific layout guidelines. Input and output
capacitors must be kept as close as possible to the device. A large bulk input capacitor (C13, C23, and
C33) is provided to compensate for impedance in long input leads.
impedance inputs to the TPS6223X, such as the Vout pin, have traces that are shielded by ground traces
and planes. Careful attention has been given to the routing of high-frequency current loops, and a single-
point grounding scheme is used. See the data sheet for specific layout guidelines. Input and output
capacitors must be kept as close as possible to the device. A large bulk input capacitor (C13, C23, and
C33) is provided to compensate for impedance in long input leads.
Figure 1. Assembly Layer
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TPS62230EVM-574 User's Guide
SLVU426A – November 2010 – Revised July 2013
Copyright © 2010–2013, Texas Instruments Incorporated