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參數(shù)資料
| 型號： | TPS54040QDGQRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, PDSO10 |
| 封裝： | GREEN, PLASTIC, MSOP-10 |
| 文件頁數(shù)： | 1/52頁 |
| 文件大?。?/td> | 1880K |
| 代理商： | TPS54040QDGQRQ1 |
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EFFICIENCY
vs
LOADCURRENT
0
10
20
30
40
50
60
70
80
0
0.1
0.2
0.3
0.4
LoadCurrent- A
Efficiency-%
100
90
0.5
V =12V,
V =5.0V,
f
=700kHz
I
O
sw
PH
VIN
GND
BOOT
VSENSE
COMP
TPS54040
EN
RT /CLK
SS /TR
PWRGD
SLVSA26B
– JANUARY 2010 – REVISED MARCH 2011
0.5-A 42-V STEP-DOWN SWIFT
DC/DC CONVERTER WITH Eco-mode
Check for Samples: TPS54040-Q1
1
FEATURES
Qualified for Automotive Applications
Adjustable Undervoltage Lockout Voltage and
Hysteresis
3.5-V to 42-V Input Voltage Range
0.8-V Internal Voltage Reference
200-m
High-Side MOSFET
Supported by SwitcherPro
Software Tool
High Efficiency at Light Loads with a Pulse
Skipping Eco-Mode
Control Scheme
116-
μA Operating Quiescent Current
For SWIFT
Documentation, See the TI
1.3-
μA Shutdown Current
Website at http://www.ti.com/swift
100-kHz to 2.5-MHz Switching Frequency
Synchronizes to External Clock
APPLICATIONS
Adjustable Slow Start/Sequencing
12-V and 24-V Industrial and Commercial Low
Undervoltage and Overvoltage Power Good
Power Systems
Output
Aftermarket Auto Accessories: Video, GPS,
Entertainment
DESCRIPTION
The TPS54040 device is a 42-V 0.5-A 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 116
μA. Using the enable pin, shutdown supply current is
reduced to 1.3
μA, when the enable pin is low.
Undervoltage lockout is internally set at 2.5 V, 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 93% 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 TPS54040 is available in a 10-pin thermally enhanced MSOP PowerPAD
package (DGQ) and a 10-pin
SON package (DRC).
SIMPLIFIED SCHEMATIC
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.
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(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS54040QDRCRQ1 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Aut Cat 3.5-42V 0.5A Step Down 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 |
| TPS5405 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:6.5-V TO 28-V INPUT VOLTAGE, 5-V FIXED OUTPUT, 2-A OUTPUT CURRENT, NON-SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET |
| TPS5405DR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 6.5-28Vin,5V Fixed Output at 1A SD Reg 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 |
| TPS5405EVM | 功能描述:電源管理IC開發(fā)工具 TPS5405 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS54060 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:0.5A, 60V STEP DOWN SWIFT? DC/DC CONVERTER WITH ECO-MODE? |
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