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參數(shù)資料
| 型號： | TPS61170DRV |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 1.2A High Voltage Boost Converter in 2x2mm2 QFN Package |
| 中文描述： | 1.2A的高電壓升壓轉(zhuǎn)換器2x2mm2 QFN封裝 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 405K |
| 代理商： | TPS61170DRV |
1
FEATURES
3-V to 18-V Input Voltage Range
High Output Voltage: Up to 38 V
1.2-A integrated Switch
1.2-MHz Fixed Switching Frequency
12 V at 300 mA and 24 V at 150 mA from 5-V
Input (Typical)
Up to 93% Efficiency
On-The-Fly
Output Voltage Reprogramming
Skip-Switching Cycle for Output Regulation at
Light Load
Built-in Soft Start
6-Pin, 2 mm
×
2 mm QFN Package
DESCRIPTION
The TPS61170 is a monolithic high voltage switching
regulator with integrated 1.2-A, 40-V power MOSFET.
It
can
be
configured
switching-regulator topologies, including boost and
SEPIC. The device has a wide input-voltage range to
support applications with input voltage from multi-cell
batteries or regulated 5-V, 12-V power rails.
APPLICATIONS
5-V to 12-V and 24-V, 12-V to 24-V Boost
Converter
Buck Boost Regulation Using SEPIC Topology
ADSL Modems
VIN 5 V
L1
10 H
m
D1
VIN
SW
FB
GND
CTRL
COMP
C2
m
4.7 F
C3
680 pF
TPS 61170
R1
87.6 k
W
VOUT 12 V/ 300 mA
R2
10 k
W
R3
10 k
W
C1
m
4.7 F
L1: TOKO#A915_Y-100M
C1: Murata GRM188R61A475K
C2: Murata GRM21BR61E475K
D1:
ONsemi MBR0540T1
*R3, C3: Compensation RC network
TPS61170
SLVS789–NOVEMBER 2007
www.ti.c om
1.2A High Voltage Boost Converter in 2x2mm
2
QFN Package
in
several
standard
The TPS61170 uses a 1.2-MHz switching frequency,
allowing the use low-profile inductors and low-value
ceramic input and output capacitors. The external
loop
compensation
gives
optimize loop compensation and transient response.
The device has built-in protection features, such as
pulse-by-pulse overcurrent limit, soft start and thermal
shutdown.
the
user
flexibility
to
The feedback reference voltage of the FB pin is
1.229V. It can be lowered using a 1-wire digital
interface (Easyscale protocol) through the CTRL
pin. Alternatively, a pulsewidth-modulation (PWM)
signal can be applied to the CTRL pin. The duty cycle
of the signal reduces the feedback reference voltage
proportionally.
The TPS61170 is available in a 6-pin 2 mm
×
2 mm
QFN package, allowing a compact power-supply
solution.
Figure 1. Typical Application
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 2007, Texas Instruments Incorporated
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS61170DRVR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2A Sw Hi Vltg Boost Conv 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 |
| TPS61170DRVRG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2A Sw Hi Vltg Boost Converter 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 |
| TPS61170DRVT | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2A Sw Hi Vltg Boost Conv 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 |
| TPS61170DRVT | 制造商:Texas Instruments 功能描述:Voltage Regulators |
| TPS61170DRVTG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2A Sw Hi Vltg Boost Converter 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 |
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