參數(shù)資料
型號: TPS5110PWG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 1.5 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24
封裝: GREEN, PLASTIC, TSSOP-24
文件頁數(shù): 19/43頁
文件大小: 813K
代理商: TPS5110PWG4
TPS5110
SLVS025B APRIL 2002 REVISED JULY 2004
26
www.ti.com
APPLICATION INFORMATION
bypass capacitor
The bypass capacitor for VIN_SENSE should be placed close to the TPS5110.
The bulk-storage capacitors across VIN should be placed close to the power MOSFETs.
High-frequency bypass capacitors should be placed in parallel with the bulk capacitors and connected
close to the drain of the high-side MOSFET(s) and to the source of the low-side MOSFET(s).
For aligning phase between the drain of high-side MOSFET(s) and the TRIP pin, and for noise
reduction, a 0.1-
F capacitor should be placed in parallel with the trip resistor.
UDG02072
1
INV
4
PWM_SEL
7
REF
24
23
17
LH
OUT_u
REG5V_IN
22
21
LL
OUT_d
16
15
LDO_IN
LDO_CUR
14
13
LDO_GATE
LDO_OUT
TPS5110PW
VIN
V
O1
EX5V
V
O2
2FB
5CT
3
SOFTSTART
6
GND
10
FLT
8
STBY
9
STBY_LDO
11
POWERGOOD
12
INV_LDO
20
19
OUTGND
TRIP
18
VIN_SENSE
V
OGND
ANAGND
DRVGND
Figure 21. Bypass Capacitor Diagram
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