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參數(shù)資料
| 型號： | TPS54318RTET |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5.5 A SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封裝： | 3 X 3 MM, PLASTIC, QFN-16 |
| 文件頁數(shù)： | 1/36頁 |
| 文件大小： | 1388K |
| 代理商： | TPS54318RTET |
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PH
VIN
POWERPAD
BOOT
VSENSE
COMP
TPS54318
EN
RT /CLK
SS
PWRGD
C ss
R T
R 3
C 1
C
BOOT
C O
LO
R 1
R 2
C I
VOUT
VIN
AGND
GND
R4
R5
50
55
60
65
70
75
80
85
90
95
100
0
0.5
1
1.5
2
2.5
3
I -OutputCurrent- A
O
Efficiency-%
V =5V,
V
=1.8V,
F =1000kHz
I
O
S
www.ti.com ......................................................................................................................................................................................... SLVS975 – SEPTEMBER 2009
2.95V To 6V Input, 3A Output, 2MHz, Synchronous Step Down
Switcher With Integrated FETs ( SWIFT)
Check for Samples :TPS54318
1
FEATURES
DESCRIPTION
2
Two 30 m
(typical) MOSFETs for High
The TPS54318 device is a full featured 6 V, 3 A,
Efficiency at 3 A loads
synchronous step down current mode converter with
two integrated MOSFETs.
200kHz to 2MHz Switching Frequency
0.8 V ± 1% Voltage Reference Over
The TPS54318 enables small designs by integrating
the MOSFETs, implementing current mode control to
temperature
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.
Low Operating and Shutdown Quiescent
The TPS54318 provides accurate regulation for a
Current
variety of loads with an accurate ±1% Voltage
Reference (Vref) over temperature.
Safe Start-up into Pre-Biased Output
Cycle by Cycle Current Limit, Thermal and
Efficiency is maximized through the integrated 30m
Frequency Fold Back Protection
MOSFETs and 350
μA typical supply current. Using
the enable pin, shutdown supply current is reduced to
–40°C to 150°C Operating Junction
2
μA by entering a shutdown mode.
Temperature Range
Undervoltage lockout is internally set at 2.6 V, but
Thermally Enhanced 3mm × 3mm 16-pin QFN
can be increased by programming the threshold with
a resistor network on the enable pin. The output
APPLICATIONS
voltage startup ramp is controlled by the slow start
Low-Voltage, High-Density Power Systems
pin. An open drain power good signal indicates the
Point of Load Regulation for High Performance
output is within 93% to 107% of its nominal voltage.
DSPs, FPGAs, ASICs and Microprocessors
Frequency fold back and thermal shutdown protects
Broadband, Networking and Optical
the device during an overcurrent condition.
Communications Infrastructure
The TPS54318 is supported in the SwitcherProTM
SIMPLIFIED SCHEMATIC
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 is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2009, 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(shù) |
參數(shù)描述 |
|---|---|
| TPS54318RTET | 制造商:Texas Instruments 功能描述:Voltage Regulator IC 制造商:Texas Instruments 功能描述:IC, SYNC STEP-DOWN SWITCHER, QFN-16 |
| TPS54319 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95-V to 6-V Input, 3-A Output, 2-MHz, Synchronous Step-Down Switcher With Integrated FETs ( SWIFTa?￠) |
| TPS54319_1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95-V to 6-V Input, 3-A Output, 2-MHz, Synchronous Step-Down Switcher With Integrated FETs ( SWIFTa?￠) |
| TPS54319EVM-626 | 功能描述:電源管理IC開發(fā)工具 Evaluation Module for TPS54319 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 |
| TPS54319RTE | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95-V to 6-V Input, 3-A Output, 2-MHz, Synchronous Step-Down Switcher With Integrated FETs ( SWIFT?) |
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