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參數(shù)資料
| 型號： | TPS54673PWPRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | GREEN, PLASTIC, HTSSOP-28 |
| 文件頁數(shù)： | 1/21頁 |
| 文件大?。?/td> | 570K |
| 代理商： | TPS54673PWPRG4 |
TPS54673
SLVS433A SEPTEMBER 2002 REVISED FEBRUARY 2005
3V TO 6V INPUT, 6A OUTPUT SYNCHRONOUS BUCK
SWITCHER WITH DISABLED SINKING DURING START UP
6,4 mm X 9,7 mm
Typical Size
FEATURES
D 30-m, 12-A Peak MOSFET Switches for High
Efficiency at 6-A Continuous Output Source
or Sink Current
D Disabled Current Sinking During Start-Up
D 0.9-V to 3.3-V Adjustable Output Voltage
Range With 1.0% Accuracy
D Wide PWM Frequency:
Fixed 350 kHz, 550 kHz or
Adjustable 280 kHz to 700 kHz
D Synchronizable to 700 kHz
D Load Protected by Peak Current Limit and
Thermal Shutdown
D Integrated Solution Reduces Board Area and
Component Count
APPLICATIONS
D Low-Voltage, High-Density Distributed Power
Systems
D Point of Load Regulation for High
Performance DSPs, FPGAs, ASICs and
Microprocessors
D Broadband, Networking and Optical
Communications Infrastructure
D Power PC Series Processors
DESCRIPTION
As a member of the SWIFT
family of dc/dc regulators,
the TPS54673 low-input voltage high-output current
synchronous buck PWM converter integrates all
required active components. Included on the substrate
with the listed features are a true, high performance,
voltage
error
amplifier
that
enables
maximum
performance and flexibility in choosing the output filter
L and C components; an under-voltage-lockout circuit
to prevent start-up until the input voltage reaches 3 V;
an internally or externally set slow-start circuit to limit
in-rush currents; and a power good output useful for
processor/logic reset, fault signaling, and supply
sequencing.
For reliable power up in output precharge applications,
the TPS54673 is designed to only source current during
startup.
The TPS54673 is available in a thermally enhanced
28-pin TSSOP (PWP) PowerPAD
package, which
eliminates bulky heatsinks. TI provides evaluation
modules and the SWIFT
designer software tool to aid
in quickly achieving high-performance power supply
designs to meet aggressive equipment development
cycles.
VIN
PH
BOOT
PGND
VSENSE
Core Supply
COMP
AGND
VBIAS
I/O Supply
TPS54673
**
* Optional
5.0 ms/div
1
V/div
START UP WAVEFORM
VO = 2.5 V
VI = 3.3 V
RL = 2
TYPICAL APPLICATION
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
PowerPAD and SWIFT are trademarks of Texas Instruments.
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.
www.ti.com
Copyright
2002 2005, Texas Instruments Incorporated
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS54678 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95 V to 6 V INPUT, 6 A OUTPUT, 2 MHz, SYNCHRONOUS STEP DOWN SWITCHER WITH INTEGRATED FET ( SWIFTa?￠) |
| TPS54678EVM-155 | 功能描述:電源管理IC開發(fā)工具 TPS54678 Eval Mod 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 |
| TPS54678RTE | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95 V to 6 V INPUT, 6 A OUTPUT, 2 MHz, SYNCHRONOUS STEP DOWN SWITCHER WITH INTEGRATED FET ( SWIFTa?￠) |
| TPS54678RTER | 功能描述:直流/直流開關轉(zhuǎn)換器 2.95-6Vin,6A,Sync SD Converter 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(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| TPS54678RTET | 功能描述:直流/直流開關轉(zhuǎn)換器 2.95-6Vin,6A,Sync SD Converter 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(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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