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參數(shù)資料
| 型號： | TPS54377RHF |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS STEP-DOWN SWIFT⑩ CONVERTER WITH DISABLED SINKING DURING START-UP |
| 中文描述： | 1.6兆赫，3 - V至6 V輸入，3甲同步降壓轉(zhuǎn)換器的SWIFT⑩與殘疾人沉井在啟動期間 |
| 文件頁數(shù)： | 5/21頁 |
| 文件大?。?/td> | 593K |
| 代理商： | TPS54377RHF |
www.ti.com
PIN ASSIGNMENTS
PGND
AGND
C
P
P
P
P
P
P
V
V
V
V
B
P
S
Exposed
Thermal Pad
(Pin 25)
NC
VSNS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PGND
RT
NC
PH
PH
SYNC
TPS54377
SLVS779–SEPTEMBER 2007
RHF PACKAGE
(BOTTOM VIEW)
TERMINAL FUNCTIONS
TERMINAL
NAME
COMP
DESCRIPTION
NO.
1
Error amplifier output. Connect compensation network from COMP to VSENSE.
Power good open drain output. High when VSENSE
≥
90% V
ref
, otherwise PWRGD is low. Note that output is low
when SS/ENA is low or internal shutdown signal active.
Bootstrap input. 0.022-
μ
F to 0.1-
μ
F low-ESR capacitor connected from BOOT to PH generates floating drive for the
high-side FET driver.
Phase input/output. Junction of the internal high and low-side power MOSFETs, and output inductor.
Power ground. High current return for the low-side driver and power MOSFET. Connect PGND with large copper
areas to the input and output supply returns, and negative terminals of the input and output capacitors.
Input supply for the power MOSFET switches and internal bias regulator. Bypass VIN pins to PGND pins close to
device package with a high quality, low ESR 1-
μ
F to 10-
μ
F ceramic capacitor.
Internal bias regulator output. Supplies regulated voltage to internal circuitry. Bypass VBIAS pin to AGND pin with a
high quality, low ESR 0.1-
μ
F to 1.0-
μ
F ceramic capacitor.
Slow-start/enable input/output. Dual function pin which provides logic input to enable/disable device operation and
capacitor input to externally set the start-up time.
Synchronization input. Dual function pin which provides logic input to synchronize to an external oscillator or pin
select between two internally set switching frequencies. When used to synchronize to an external signal, a resistor
must be connected to the RT pin.
Frequency setting resistor input. Connect a resistor from RT to AGND to set the switching frequency, f
s
.
Analog ground. Return for compensation network/output divider, slow-start capacitor, VBIAS capacitor, RT resistor
and SYNC pin. Make PowerPAD connection to AGND.
Error amplifier inverting input.
Not connected internally.
PWRGD
2
BOOT
3
PH
4-9
PGND
11-14
VIN
15-17
VBIAS
18
SS/ENA
19
SYNC
20
RT
22
AGND
23, 25
VSNS
NC
24
10, 21
Copyright 2007, Texas Instruments Incorporated
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TPS54377
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| TPS54377RHFR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.6 MHz 3-6V In 3A Syn. Stp Dwn SWIFT RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(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 |
| TPS54377RHFRG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.6 MHz 3V-6V Input 3A Syn. Step Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(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 |
| TPS54377RHFT | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.6 MHz 3-6V In 3A Syn. Stp Dwn SWIFT RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(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 |
| TPS54377RHFTG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.6 MHz 3V-6V Input 3A Syn. Step Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(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 |
| TPS54380 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SWIFT Converter Product Portfolio |
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