參數(shù)資料
型號(hào)： TPS54372PWP
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： 3 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20
封裝： GREEN, PLASTIC, HTSSOP-20
文件頁(yè)數(shù)： 17/18頁(yè)
文件大?。?/td> 525K
代理商： TPS54372PWP
www.ti.com
APPLICATION INFORMATION
J2
+
J1 2
1
VI
GND
TP1
C4
10
F
TP2
TP3
U1
TPS54372PWP
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
AGND
VSENSE
COMP
STATUS
BOOT
PH
PwrPAD
21
RT
ENA
REFIN
VBIAS
VIN
PGND
R2
36.5 k
C2
470 pF
C1
12 pF
C6
0.047 pF
R1
10 k
R3
1.21 k
C3
1500 pF
TP4
R4
2.4
C5
3300 pF
L1
1
H
1
2
C7
150
F
C10
150
F
C11
1
F
TP5
TP6
TP7
1
2
VTTQ
GND
TP8
C8
10
F
C9
1
F
R5
71.5 k
R7
10 k
C12
0.1
F
C13
0.1
F
R6
10 k
TP9
J2
1
2
VDDQ
GND
TYPICAL CIRCUIT
INPUT VOLTAGE
COMPONENT SELECTION
FEEDBACK CIRCUIT
TPS54372
SLVS430D – JUNE 2002 – REVISED FEBRUARY 2005
Figure 8. Application Circuit
Figure 8 shows the schematic diagram for a typical
The input voltage is a nominal 3.3 or 5.0 Vdc. The
TPS54372 application. The TPS54372 (U1) can pro-
input filter (C4) is a 10-F ceramic capacitor (Taiyo
vide up to 3 A of output current at a nominal output
Yuden). Capacitor C8, a 10-F ceramic capacitor
voltage of one half of VDDQ (typically 1.25 V). For
(Taiyo Yuden) that provides high-frequency decoup-
proper operation, the PowerPAD underneath the
ling of the TPS54372 from the input supply, must be
integrated circuit TPS54372 is soldered directly to the
located as close as possible to the device. Ripple
printed-circuit board.
current is carried in both C4 and C8, and the return
path to PGND should avoid the current circulating in
the output capacitors C7, C10, and C11.
The values for the components used in this design
example were selected for good transient response
and small PCB area. Special polymer capacitors are
The values for these components are selected to
used in the output filter circuit. A small size, small
provide fast transient response times. Components
value output inductor is also used. Compensation
R1, R2, R3, C1, C2, and C3 form the loop compen-
network
components
are
chosen
to
maximize
sation network for the circuit. For this design, a
closed-loop bandwidth and provide good transient
Type-3 topology is used. The transfer function of the
response characteristics. Additional design infor-
feedback network is chosen to provide maximum
mation is available at www.ti.com.
closed-loop gain available with open-loop character-
istics of the internal error amplifier. Closed-loop
crossover frequency is typically between 80 kHz and
125 kHz for input from 3 V to 6 V.
8
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS54372PWP 制造商:Texas Instruments 功能描述:; Voltage Regulator Type:Synchronous Buc
TPS54372PWPG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 3-A Act Bus Term/DDR DC/DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54372PWPR 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 3-A Act Bus Term/DDR DC/DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54372PWPRG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 3-A Act Bus Term/DDR DC/DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54372QPWPRQ1 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 3A Output Tracking/ Term Sync PWM Sw RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
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