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參數資料
| 型號： | TPS54328DDAR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 5.7 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012BA, SOP-8 |
| 文件頁數： | 1/19頁 |
| 文件大小： | 497K |
| 代理商： | TPS54328DDAR |
V = 50 mV / div (-950 mV dc offset)
O
I = 1 A / div (0.75 to 2.25 A load step,
slew rate = 1 A / sec)
O
Time = 50 sec / div
www.ti.com
SLVSAN2 – NOVEMBER 2010
4.5V to 18V Input, 3-A Synchronous Step-Down SWIFT Converter with Eco-Mode
Check for Samples: TPS54328
1
FEATURES
DESCRIPTION
23
D-CAP2 Mode Enables Fast Transient
Response
The TPS54328 is an adaptive on-time D-CAP2
mode synchronous buck converter. The TPS54328
Low Output Ripple and Allows Ceramic Output
enables system designers to complete the suite of
Capacitor
various end-equipment power bus regulators with a
Wide VIN Input Voltage Range: 4.5 V to 18 V
cost effective, low component count, low standby
Output Voltage Range: 0.76 V to 7.0 V
current solution. The main control loop for the
TPS54328 uses the D-CAP2 mode control that
Highly Efficient Integrated FETs Optimized
provides a fast transient response with no external
for Lower Duty Cycle Applications
compensation components. The adaptive on-time
– 100 m
(High Side) and 70 m (Low Side)
control supports seamless transition between PWM
High Efficiency, less than 10 mA at shutdown
mode at higher load conditions and Eco-mode
High Initial Bandgap Reference Accuracy
operation at light loads. Eco-mode allows the
TPS54328 to maintain high efficiency during lighter
Adjustable Soft Start
load conditions. The TPS54328 also has a proprietary
Pre-Biased Soft Start
circuit that enables the device to adopt to both low
700-kHz Switching Frequency (fSW)
equivalent series resistance (ESR) output capacitors,
such as POSCAP or SP-CAP, and ultra-low ESR
Cycle By Cycle Over Current Limit
ceramic capacitors. The device operates from 4.5-V
Auto-Skip Eco-mode for High Efficiency at
to 18-V VIN input. The output voltage can be
Light Load
programmed between 0.76 V and 7.0 V. The device
also features an adjustable soft start time. The
APPLICATIONS
TPS54328 is available in the 8-pin DDA package,
Wide Range of Applications for Low Voltage
and designed to operate from –40°C to 85°C.
System
–
Digital TV Power Supply
–
High Definition Blu-ray Disc Players
–
Networking Home Terminal
–
Digital Set Top Box (STB)
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
D-CAP2, Eco-mode are trademarks of Texas Instruments.
3
Blu-ray Disc is a trademark of Blu-ray Disc Association.
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 |
|---|---|
| TPS54328DRCR | 功能描述:直流/直流開關轉換器 4.5V-18V Inp 3A Sync SD DCAP Md Cnvrtr 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 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| TPS54328DRCT | 功能描述:直流/直流開關轉換器 4.5V-18V Inp 3A Sync SD DCAP Md Cnvrtr 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 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| TPS54328EVM-686 | 功能描述:電源管理IC開發工具 TPS54328 Eval Mod 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 |
| TPS54329 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4.5V to 18V Input, 3-A SYNCHRONOUS STEP DOWN CONVERTER |
| TPS54329DDA | 功能描述:直流/直流開關調節器 4.5-18Vin,3A Sync SD 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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