TPS54429

更新时间： 2024-12-01 08:38:59

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
22页	655K
描述
7V to 18V Input, 4.5-A Synchronous Step-Down ( SWIFT?) Converter

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TPS54429 数据手册

TPS54429

www.ti.com

SLVSAS1 –FEBRUARY 2011

7V to 18V Input, 4.5-A Synchronous Step-Down ( SWIFT™) Converter

Check for Samples: TPS54429

FEATURES

DESCRIPTION

•

D-CAP2™ Mode Enables Fast Transient

Response

The TPS54429 is an adaptive on-time D-CAP2™

mode synchronous buck converter. The TPS54429

enables system designers to complete the suite of

various end equipment’s power bus regulators with a

cost effective, low component count, low standby

current solution. The main control loop for the

TPS54429 uses the D-CAP2™ mode control which

provides a very fast transient response with no

external compensation components. The TPS54429

also has a proprietary circuit that enables the device

to adopt to both low equivalent series resistance

(ESR) output capacitors, such as POSCAP or

SP-CAP, and ultra-low ESR ceramic capacitors. The

device operates from 7-V to 18-V VIN input. The

output voltage can be programmed between 0.76 V

and 5.5 V. The device also features an adjustable

soft start time and a power good function. The

TPS54429 is available in the 14-pin HTSSOP

package, and designed to operate from –20°C to

85°C.

•

Low Output Ripple and Allows Ceramic Output

Capacitor

•

Wide V_INInput Voltage Range: 7 V to 18 V

Output Voltage Range: 0.76 V to 5.5 V

Highly Efficient Integrated FET’s Optimized

for Lower Duty Cycle Applications

– 63 mΩ (High Side) and 55 mΩ (Low Side)

•

High Efficiency, less than 10 μA at shutdown

High Initial Bandgap Reference Accuracy

Adjustable Soft Start

Pre-Biased Soft Start

700-kHz Switching Frequency (f_SW

)

Cycle By Cycle Over Current Limit

Power Good Output

APPLICATIONS

•

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)

TPS54429PWP

Vout (50 mV/div)

Iout (2A/div)

100 ms/div

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.

SWIFT, D-CAP2, PowerPAD are trademarks of Texas Instruments.

Blu-ray Disc is a trademark of Blu-ray Disc Association.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...22

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与TPS54429相关器件

型号	品牌	获取价格	描述	数据表
TPS54429E	TI	获取价格	7V to 8V Input, 4.5-A Synchronous Step-Down SWIFT Converter
TPS54429EPWP	TI	获取价格	7V to 8V Input, 4.5-A Synchronous Step-Down SWIFT Converter
TPS54429EPWPR	TI	获取价格	7V to 8V Input, 4.5-A Synchronous Step-Down SWIFT Converter
TPS54429ERSAR	TI	获取价格	7V to 8V Input, 4.5-A Synchronous Step-Down SWIFT Converter
TPS54429ERSAT	TI	获取价格	7V to 8V Input, 4.5-A Synchronous Step-Down SWIFT Converter
TPS54429PWP	TI	获取价格	7V to 18V Input, 4.5-A Synchronous Step-Down ( SWIFT?) Converter
TPS54429PWPR	TI	获取价格	7V to 18V Input, 4.5-A Synchronous Step-Down ( SWIFT?) Converter
TPS54478	TI	获取价格	2.95-V to 6-V Input, 4-A Output, 2-MHz, Synchronous Step-Down
TPS54478RTE	TI	获取价格	SWITCHING REGULATOR, 2000kHz SWITCHING FREQ-MAX, PQCC16, 3 X 3 MM, GREEN, PLASTIC, WQFN-16
TPS54478RTER	TI	获取价格	2.95-V to 6-V Input, 4-A Output, 2-MHz, Synchronous Step-Down

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