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參數資料
| 型號： | TPS54240QDGQRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 2.5 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | GREEN, PLASTIC, MSOP-10 |
| 文件頁數： | 1/48頁 |
| 文件大小： | 1447K |
| 代理商： | TPS54240QDGQRQ1 |
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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
SLVSAQ4A
– DECEMBER 2010 – REVISED APRIL 2011
3.5V to 42V STEP DOWN SWIFT
DC/DC CONVERTER WITH ECO-MODE
Check for Samples: TPS54240-Q1
1
FEATURES
0.8-V Internal Voltage Reference
MSOP10 Package With PowerPAD
2
Qualified for Automotive Applications
Supported by SwitcherPro
Software Tool
3.5V to 42V Input Voltage Range
200-m
High-Side MOSFET
High Efficiency at Light Loads with a Pulse
For SWIFT
Documentation, See the TI
Skipping Eco-Mode
Website at http://www.ti.com/swift
138
μA Operating Quiescent Current
1.3
μA Shutdown Current
APPLICATIONS
100kHz to 2.5MHz Switching Frequency
12-V and 24-V Industrial and Commercial Low
Synchronizes to External Clock
Power Systems
Adjustable Slow Start/Sequencing
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-Q1 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 138
μA. Using the enable pin, shutdown supply
current is reduced to 1.3
μA, 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-Q1 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
2010–2011, 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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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS54240QDRCRQ1 | 功能描述:Buck, Split Rail Switching Regulator IC Positive Adjustable 0.8V 1 Output 2.5A 10-VFDFN Exposed Pad 制造商:texas instruments 系列:汽車級，AEC-Q100，SWIFT?，Eco-Mode? 包裝:剪切帶（CT） 零件狀態:有效 功能:降壓 輸出配置:正 拓撲:降壓，分離軌 輸出類型:可調式 輸出數:1 電壓 - 輸入（最小值）:3.5V 電壓 - 輸入（最大值）:42V 電壓 - 輸出（最小值/固定）:0.8V 電壓 - 輸出（最大值）:39V 電流 - 輸出:2.5A 頻率 - 開關:100kHz ~ 2.5MHz 同步整流器:無 工作溫度:-40°C ~ 125°C（TA） 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應商器件封裝:10-VSON（3x3） 標準包裝:1 |
| TPS54260 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER WITH ECO-MODE? |
| TPS54260_1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER WITH ECO-MODE? |
| TPS54260_2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER WITH ECO-MODE? |
| TPS54260DGQ | 功能描述:直流/直流開關調節器 3.5-60V 2.5A 2.5MHz Step Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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