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參數資料
| 型號： | TPS54429ERSAT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.01 A SWITCHING REGULATOR, PQCC16 |
| 封裝： | PLASTIC, QFN-16 |
| 文件頁數： | 1/26頁 |
| 文件大?。?/td> | 907K |
| 代理商： | TPS54429ERSAT |
U1
TPS54429E
Vout (50 mV/div)
Iout (2 A/div)
100
s/div
m
SLVSAS0 –FEBRUARY 2011
7V to 8V Input, 4.5-A Synchronous Step-Down SWIFT
Converter with Eco-Mode
Check for Samples: TPS54429E
1
FEATURES
DESCRIPTION
23
D-CAP2
Mode Enables Fast Transient
The TPS54429E is an adaptive on-time D-CAP2
Response
mode synchronous buck converter. The TPS54429E
enables system designers to complete the suite of
Low Output Ripple and Allows Ceramic Output
various end equipment’s power bus regulators with a
Capacitor
cost effective, low component count, low standby
Wide VIN Input Voltage Range: 7 V to 18 V
current solution. The main control loop for the
Output Voltage Range: 0.76 V to 5.5 V
TPS54429E uses the D-CAP2 mode control which
provides a very fast transient response with no
Highly Efficient Integrated FET
’s Optimized
external compensation components. The adaptive
for Lower Duty Cycle Applications
on-time control supports seamless transition between
– 63 m (High Side) and 55 m (Low Side)
PWM mode at higher load conditions and
High Efficiency, less than 10
μA at shutdown
Eco-mode operation at light loads. Eco-mode
High Initial Bandgap Reference Accuracy
allows the TPS54429E to maintain high efficiency
during lighter load conditions. The TPS54429E also
Adjustable Soft Start
has a proprietary circuit that enables the device to
Pre-Biased Soft Start
adopt to both low equivalent series resistance (ESR)
700-kHz Switching Frequency (fSW)
output capacitors, such as POSCAP, SP-CAP, and
ultra-low ESR ceramic capacitors. The device
Cycle By Cycle Over Current Limit
operates from 7-V to 18-V VIN input. The output
Power Good Output
voltage can be programmed between 0.76V and
Auto-Skip Eco-mode
for High Efficiency at
5.5V. The device also features an adjustable soft
Light Load
start time and a power good function. The
TPS54429E is available in the 14-pin HTSSOP
package and the 16 pin QFN package, designed to
APPLICATIONS
operate from –20°C to 85°C.
Wide Range of Applications for Low Voltage
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, PowerPAD 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.
2011, 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 |
|---|---|
| TPS54429EVM-608 | 功能描述:電源管理IC開發(fā)工具 TPS54429 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 |
| TPS54429PWP | 功能描述:直流/直流開關調節(jié)器 7V-18Vin,4.5A Sync Step-Down DCAP2 Mode 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 |
| TPS54429PWPR | 功能描述:直流/直流開關調節(jié)器 7V-18Vin,4.5A Sync Step-Down DCAP2 Mode 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 |
| TPS54478 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95-V to 6-V Input, 4-A Output, 2-MHz, Synchronous Step-Down |
| TPS54478EVM-037 | 功能描述:電源管理IC開發(fā)工具 TPS54478 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 |
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