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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)： | 2/36頁 |
| 文件大?。?/td> | 1388K |
| 代理商： | TPS54318RTET |
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-SupplyCurrent-
A
C
m
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3
3.5
4
4.5
5
5.5
6
V
-InputVoltage-V
IN
T =25°C
J
PWRGD-Threshold-%V
ref
88
90
92
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96
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104
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108
110
VsenseRising,V
=3.3V
IN
VsenseRising
VsenseFalling
-50
-25
0
25
50
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125
150
T -JunctionTemperature-°C
J
RDSON-StaticDrain-SourecOnStateResistance-
W
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-25
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T -JunctionTemperature-°C
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V
=3.3V
IN
SLVS975 – SEPTEMBER 2009 ......................................................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS CURVES (continued)
SUPPLY CURRENT vs INPUT VOLTAGE
PWRGD THRESHOLD vs TEMPERATURE
Figure 19.
Figure 20.
PWRGD ON RESISTANCE vs TEMPERATURE
Figure 21.
OVERVIEW
The TPS54318 is a 6-V, 3-A, synchronous step-down (buck) converter with two integrated n-channel MOSFETs.
To improve performance during line and load transients the device implements a constant frequency, peak
current mode control which reduces output capacitance and simplifies external frequency compensation design.
The wide switching frequency of 200 kHz to 2000 kHz allows for efficiency and size optimization when selecting
the output filter components. The switching frequency is adjusted using a resistor to ground on the RT/CLK pin.
The device has an internal phase lock loop (PLL) on the RT/CLK pin that is used to synchronize the power
switch turn on to a falling edge of an external system clock.
The TPS54318 has a typical default start up voltage of 2.6 V. The EN pin has an internal pull-up current source
that can be used to adjust the input voltage under voltage lockout (UVLO) with two external resistors. In addition,
the pull up current provides a default condition when the EN pin is floating for the device to operate. The total
operating current for the TPS54318 is 350
μA when not switching and under no load. When the device is
disabled, the supply current is less than 5
μA.
The integrated 30 m
MOSFETs allow for high efficiency power supply designs with continuous output currents
up to 3 amperes.
10
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s) :TPS54318
相關PDF資料 |
PDF描述 |
|---|---|
| TPS54318RTER | 5.5 A SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, PQCC16 |
| TPS54319RTER | SWITCHING REGULATOR, PQCC16 |
| TPS54319RTE | SWITCHING REGULATOR, PQCC16 |
| TPS54326PWP | 5.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO14 |
| TPS54326RGTR | 5.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PQCC16 |
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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