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參數資料
| 型號： | TPS54319RTER |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, PQCC16 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, WQFN-16 |
| 文件頁數： | 1/36頁 |
| 文件大小： | 1271K |
| 代理商： | TPS54319RTER |
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PH
VIN
POWERPAD
BOOT
VSENSE
COMP
TPS54319
EN
RT /CLK
SS/TR
PWRGD
C ss
R T
R 3
C 1
C
BOOT
C O
LO
R 1
R 2
C I
VOUT
VIN
AGND
GND
40
50
60
70
80
90
0
10
20
30
100
Efficiency
-
%
0
0.5
2
2.5
3
Output Current - A
1
1.5
5 Vin, 1.8 Vout
3.3 Vin,1.8 Vout
www.ti.com
SLVSA83 – JUNE 2010
2.95-V to 6-V Input, 3-A Output, 2-MHz, Synchronous Step-Down
Switcher With Integrated FETs ( SWIFT)
Check for Samples: TPS54319
1
FEATURES
DESCRIPTION
2
Two 45-m
(typical) MOSFETs for High
The TPS54319 device is a full featured 6 V, 3 A,
Efficiency at 3-A Loads
synchronous step down current mode converter with
two integrated MOSFETs.
300kHz to 2MHz Switching Frequency
0.8 V ± 3.0% Voltage Reference Over
The TPS54319 enables small designs by integrating
the MOSFETs, implementing current mode control to
Temperature (0°C to 85°C)
reduce external component count, reducing inductor
Synchronizes to External Clock
size by enabling up to 2 MHz switching frequency,
Adjustable Slow Start/Sequencing
and minimizing the IC footprint with a small 3mm x
UV and OV Power Good Output
3mm thermally enhanced QFN package.
–40°C to 150°C Operating Junction
The TPS54319 provides accurate regulation for a
Temperature Range
variety of loads with an accurate ±3.0% Voltage
Reference (VREF) over temperature.
Thermally Enhanced 3mm × 3mm 16-pin QFN
Pin Compatible to TPS54318
Efficiency is maximized through the integrated 45m
MOSFETs and 360mA typical supply current. Using
the enable pin, shutdown supply current is reduced to
APPLICATIONS
2 A by entering a shutdown mode.
Low-Voltage, High-Density Power Systems
Point-of-Load Regulation for Consumer
Under voltage lockout is internally set at 2.6 V, but
Applications such as Set Top Boxes, LCD
can be increased by programming the threshold with
Displays, CPE Equipment
a resistor network on the enable pin. The output
voltage startup ramp is controlled by the slow start
pin. An open drain power good signal indicates the
SIMPLIFIED SCHEMATIC
output is within 93% to 107% of its nominal voltage.
vertical spacer
Frequency fold back and thermal shutdown protects
vertical spacer
the device during an over-current condition.
The TPS54319 is supported in the SwitcherPro
Software Tool at www.ti.com/switcherpro.
For more SWIFTTM documentation, see the TI
website at www.ti.com/swift.
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
SWIFT, SwitcherPro 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 |
|---|---|
| TPS54319RTET | 功能描述:直流/直流開關調節器 2.95-6Vin 3A 2MHz Sync Step-Down SWIFT 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 |
| TPS54319RTET | 制造商:Texas Instruments 功能描述:SYNCHRONOUS STEP-DOWN SWITCHER WITH INTE 制造商:Texas Instruments 功能描述:IC, SYNC STEP-DOWN DC/DC CONVERTER QFN16 |
| TPS5431DDA | 功能描述:直流/直流開關調節器 5.5-23V 3A Step Down Swift 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 |
| TPS5431DDAG4 | 功能描述:直流/直流開關調節器 5.5-23V 3A Step Down Swift 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 |
| TPS5431DDAR | 功能描述:直流/直流開關調節器 5.5V-23V 3A 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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