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參數(shù)資料
| 型號(hào)： | TPS54140QDRCRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, PDSO10 |
| 封裝： | GREEN, PLASTIC, SON-10 |
| 文件頁(yè)數(shù)： | 1/50頁(yè) |
| 文件大小： | 1602K |
| 代理商： | TPS54140QDRCRQ1 |
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EFFICIENCY
vs
LOADCURRENT
50
55
60
65
70
75
80
85
90
0
0.25
0.50
0.75
1
1.25
1.50
1.75
2
LoadCurrent- A
Efficiency-%
V =12V,
V =3.3V,
f
=1200kHz
I
O
sw
PH
VIN
GND
BOOT
VSENSE
COMP
TPS54140
EN
RT /CLK
SS /TR
PWRGD
SLVSA24B
– OCTOBER 2009 – REVISED MARCH 2011
1.5-A 42-V STEP-DOWN SWIFT
DC/DC CONVERTER
WITH Eco-mode
CONTROL
Check for Samples: TPS54140-Q1
1
FEATURES
Adjustable Undervoltage Lockout Voltage and
Hysteresis
2
Qualified for Automotive Applications
0.8-V Internal Voltage Reference
3.5-V to 42-V Input Voltage Range
Supported by SwitcherPro
Software Tool
200-m
High-Side MOSFET
High Efficiency at Light Loads With
Pulse-Skipping Eco-mode
Control Scheme
For SWIFT
Documentation, See the TI
116-
μA Operating Quiescent Current
Website at http://www.ti.com/swift
1.3-
μA Shutdown Current
100-kHz to 2.5-MHz Switching Frequency
APPLICATIONS
Synchronizes to External Clock
12-V and 24-V Industrial and Commercial Low
Power Systems
Adjustable Slow Start/Sequencing
Aftermarket Automotive Accessories: Video,
Undervoltage and Overvoltage Power Good
GPS, Entertainment
Output
DESCRIPTION
The TPS54140 device is a 42-V 1.5-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.
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 TPS54140 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.
2
Eco-mode, SwitcherPro, SWIFT, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright
2009–2011, 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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| TPS54160DGQR | 2.7 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS54160 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.5-A, 60-V, STEP-DOWN SWIFT DC/DC CONVERTER WITH ECO-MODE |
| TPS54160_08 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.5-A, 60V STEP DOWN SWIFTa?￠ DC/DC CONVERTER WITH ECO-MODEa?￠ |
| TPS54160_11 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.5-A, 60-V, STEP-DOWN SWIFT DC/DC CONVERTER WITH ECO-MODE |
| TPS54160A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.5-A, 60-V, Step-Down SWIFTa?￠ DC/DC Converter with Eco-modea?￠ |
| TPS54160A_13 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.5-A, 60-V, Step-Down SWIFT DC/DC Converter with Eco-mode |
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