參數(shù)資料
型號: TPS62400QDRCQ1
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, PDSO10
封裝: 3 X3 MM, PLASTIC, SON-10
文件頁數(shù): 27/41頁
文件大?。?/td> 1319K
代理商: TPS62400QDRCQ1
SW1
FB1
DEF_1
VIN3V – 6V
VIN
EN_1
EN_2
MODE/
DATA
TPS62400
GND
R11
R12
L1
PowerPAD
R21
R22
SW2
ADJ2
L2
Cff2
33pF
C
10 F
IN
m
3.3 H
m
COUT2
3.3 H
m
COUT1
TPS62400-Q1, TPS62401-Q1
TPS62402-Q1, TPS62403-Q1
www.ti.com
SLVSA67 – FEBRUARY 2010
Connect the GND Pin of the device to the PowerPAD of the PCB and use this Pad as a star point. For each
converter use a common Power GND node and a different node for the signal GND to minimize the effects of
ground noise. Connect these ground nodes together to the PowerPAD (star point) underneath the IC. Keep the
common path to the GND PIN, which returns the small signal components and the high current of the output
capacitors, as short as possible to avoid ground noise. The output voltage sense lines (FB 1, DEF_1, ADJ2)
should be connected right to the output capacitor and routed away from noisy components and traces (e.g., SW1
and SW2 lines). If the EasyScale interface is operated with high transmission rates, the MODE/DATA trace
must be routed away from the ADJ2 line to avoid capacitive coupling into the ADJ2 pin. A GND guard ring
between the MODE/DATA pin and ADJ2 pin avoids potential noise coupling.
Figure 47. Layout Diagram
Copyright 2010, Texas Instruments Incorporated
33
Product Folder Link(s) :TPS62404-Q1
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