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參數資料
| 型號： | TPS5401DGQ |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | GREEN, PLASTIC, MSOP-10 |
| 文件頁數： | 1/41頁 |
| 文件大小： | 1149K |
| 代理商： | TPS5401DGQ |
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EFFICIENCY
vs
LOAD CURRENT
0
10
20
30
40
50
60
70
80
0
0.1
0.2
0.3
0.4
Load Current – A
Efficiency
–
%
100
90
0.5
V
= 12 V
V
= 5 V
f
= 700 kHz
IN
OUT
SW
PH
VIN
GND
BOOT
VSENSE
COMP
TPS5401
EN
RT/CLK
SS/TR
PWRGD
C
IN
C
BOOT
L
OUT
C
OUT
R1
R2
C2
C1
R3
R
T
C
SS
V
IN
V
OUT
www.ti.com
SLVSAB0 – DECEMBER 2010
0.5-A, 42-V Input, Step-Down SWIFT Converter
Check for Samples: TPS5401
1
FEATURES
0.8-V ±3.5% Internal Voltage Reference
2
3.5-V to 42-V Input Voltage Range
MSOP10 With PowerPAD Package
200-m
High-Side MOSFET
Supported by SwitcherPro Software Tool
High Efficiency at Light Loads With a
Pulse-Skipping Eco-mode Control Scheme
For SWIFT Power Products Documentation,
116-mA Operating Quiescent Current
See the TI Web Site at http://www.ti.com/swift
1.3-mA Shutdown Current
100-kHz to 2.5-MHz Switching Frequency
APPLICATIONS
Synchronizes to External Clock
12-V and 24-V Industrial and Commercial
Adjustable Slow Start/Sequencing
Low-Power Systems
E-Meters
UV and OV Power-Good Output
Adjustable UVLO Voltage and Hysteresis
DESCRIPTION
The TPS5401 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 supply current to 116 mA when outputting regulated voltage with no load. Using the enable pin,
shutdown supply current is reduced to 1.3 mA 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
start-up 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 optimization. Frequency
foldback and thermal shutdown protect the part during an overload condition.
The TPS5401 is available in a 10-pin thermally enhanced MSOP PowerPAD package.
SPACER
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.
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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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS5401DGQR | 功能描述:直流/直流開關轉換器 3.5V-42Vin,0.5A Step Down SWIFT RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| TPS5401DGQT | 功能描述:直流/直流開關轉換器 3.5V-42Vin,0.5A Step Down SWIFT RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| TPS5401EVM-708 | 功能描述:電源管理IC開發工具 Eval Mod for TPS5401 RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS5402 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3.5-V TO 28-V INPUT VOLTAGE, 1.7-A OUTPUT CURRENT, NON-SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET |
| TPS54020 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4.5V to 17V Input, 10A Synchronous Step-Down SWIFTa?￠ Converter With Full Feature Set |
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