參數(shù)資料
型號(hào)： TPS54240DGQ
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10
封裝： GREEN, PLASTIC, MSOP-10
文件頁(yè)數(shù)： 1/48頁(yè)
文件大?。?/td> 1759K
代理商： TPS54240DGQ
0
10
20
30
40
50
60
70
80
100
0
0.5
1.0
1.5
2.0
I - Output Current - A
O
Efficiency
-
%
2.5
3.0
90
VIN=12V
VOUT=3.3V
fsw=300kHz
PH
VIN
GND
BOOT
VSENSE
COMP
TPS54240
EN
RT /CLK
SS /TR
PWRGD
www.ti.com
SLVSAA6 – APRIL 2010
3.5V to 42V STEP DOWN SWIFT DC/DC CONVERTER WITH ECO-MODE
Check for Samples: TPS54240
1
FEATURES
0.8-V Internal Voltage Reference
2
3.5V to 42V Input Voltage Range
MSOP10 Package With PowerPAD
200-m
High-Side MOSFET
Supported by SwitcherPro Software Tool
High Efficiency at Light Loads with a Pulse
Skipping Eco-Mode
For SWIFT Documentation, See the TI
138mA Operating Quiescent Current
1.3mA Shutdown Current
100kHz to 2.5MHz Switching Frequency
APPLICATIONS
Synchronizes to External Clock
12-V and 24-V Industrial and Commercial Low
Adjustable Slow Start/Sequencing
Power Systems
GSM, GPRS Modules in Fleet Management,
UV and OV Power Good Output
E-Meters, and Security Systems
Adjustable UVLO Voltage and Hysteresis
DESCRIPTION
The TPS54240 device is a 42V, 2.5A, step down regulator with an integrated high side MOSFET. Current mode
control provides simple external compensation and flexible component selection. A low ripple pulse skip mode
reduces the no load, regulated output supply current to 138mA. Using the enable pin, shutdown supply current is
reduced to 1.3mA, when the enable pin is low.
Under voltage lockout is internally set at 2.5V, but can be increased using the enable pin. The output voltage
startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open
drain power good signal indicates the output is within 94% to 107% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold
back and thermal shutdown protects the part during an overload condition.
The TPS54240 is available in 10 pin thermally enhanced MSOP Power Pad package.
SIMPLIFIED SCHEMATIC
EFFICIENCY vs LOAD CURRENT
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.
2
Eco-Mode, PowerPAD, SwitcherPro, SWIFT are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS54240DGQ 制造商:Texas Instruments 功能描述:IC STEP-DOWN DC/DC CONVERTER MSOP-10
TPS54240DGQR 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 3.5-42V Inp,2.5A,2.5 MHz SWIFT Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
TPS54240DRCR 功能描述:直流/直流開關(guān)調(diào)節(jié)器 3.5-42Vin,2.5A SD 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
TPS54240DRCT 功能描述:直流/直流開關(guān)調(diào)節(jié)器 3.5-42Vin,2.5A SD 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
TPS54240EVM-605 功能描述:電源管理IC開發(fā)工具 2.5A SWIFT Converter Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
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