Datasheet > TPS5403

TPS5403

更新时间： 2024-11-23 12:00:35

品牌	Logo	应用领域
德州仪器 - TI		稳压器输出元件输入元件
页数	文件大小	规格书
18页	942K
描述
4.5-V TO 28-V INPUT VOLTAGE, 3.3-V FIXED OUTPUT, 1.7-A OUTPUT CURRENT, NON-SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET

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TPS5403 数据手册

TPS5403

www.ti.com

SLVSBK5 –SEPTEMBER 2012

4.5-V TO 28-V INPUT VOLTAGE, 3.3-V FIXED OUTPUT, 1.7-A OUTPUT CURRENT,

NON-SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET

Check for Samples: TPS5403

FEATURES

•

Fixed 3.3-V Output

APPLICATIONS

4.5-V to 28-V Wide Input Voltage Range

•

5-V, 9-V, 12-V and 24-V Distributed Power

Systems

Up to 1.7-A Maximum Continuous Output

Loading Current

•

Consumer Applications Such as Home

Appliances, Set-Top Boxes, CPE Equipment,

LCD Displays, Peripherals, and Battery

Chargers

•

Pulse Skipping Mode to Achieve High Light

Load Efficiency

•

Over 80% Efficiency at 10-mA Loading

•

Industrial and Car Entertainment Power

Supplies

Adjustable 50-kHz to 1.1-MHz Switching

Frequency Set by an External Resistor

(Leave pin ROSC floating. Set frequency to

120 kHz and ground connection to 70 kHz)

•

Peak Current-Mode Control

Cycle-by-Cycle Over Current Protection

Frequency Spread Spectrum and Switching

Node Anti-Ringing to Ease EMI Issue

•

External Soft Start

Available in SOIC8 Package

DESCRIPTION

The TPS5403 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 4.5 V

to 28 V. Current mode control with internal slope compensation is implemented to reduce component count.

TPS5403 also features a light load pulse skipping mode, which allows for a power loss reduction from the input

power supply to the system at light loading.

The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor.

Frequency spread spectrum operation is introduced for EMI reduction.

LX anti-ringing is added to address high frequency EMI issues.

A cycle-by-cycle current limit with frequency fold back protects the IC at over loading condition.

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.

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...18

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TPS5403 替代型号

型号	品牌	替代类型	描述	数据表
TPS54335A	TI	功能相似	具有 Eco-Mode 的 4.5V 至 28V 输入、3A 同步降压转换器
TPS5402	TI	功能相似	3.5-V TO 28-V INPUT VOLTAGE, 1.7-A OUTPUT CURRENT, NON-SYNCHRONOUS STEP-DOWN REGULATOR WIT
TPS5405	TI	功能相似	6.5-V TO 28-V INPUT VOLTAGE, 5-V FIXED OUTPUT, 2-A OUTPUT CURRENT, NON-SYNCHRONOUS STEP-DO

与TPS5403相关器件

型号	品牌	获取价格	描述	数据表
TPS5403DR	TI	获取价格	4.5-V TO 28-V INPUT VOLTAGE, 3.3-V FIXED OUTPUT, 1.7-A OUTPUT CURRENT, NON-SYNCHRONOUS STE
TPS54040	TI	获取价格	0.5A, 42V STEP DOWN SWIFT™ DC/DC CONVERTER WI
TPS54040_10	TI	获取价格	0.5A, 42V STEP DOWN SWIFT™ DC/DC CONVERTER WI
TPS54040_16	TI	获取价格	Step Down DC/DC Converter
TPS54040A	TI	获取价格	0.5 A, 42 V Step Down SWIFT? DC/DC Converter with ECO-MODE?
TPS54040A_16	TI	获取价格	Step-Down DC-DC Converter
TPS54040ADGQ	TI	获取价格	0.5 A, 42 V Step Down SWIFT? DC/DC Converter with ECO-MODE?
TPS54040ADGQR	TI	获取价格	0.5 A, 42 V Step Down SWIFT? DC/DC Converter with ECO-MODE?
TPS54040ADRC	TI	获取价格	0.5 A, 42 V Step Down SWIFT? DC/DC Converter with ECO-MODE?
TPS54040ADRCR	TI	获取价格	0.5 A, 42 V Step Down SWIFT? DC/DC Converter with ECO-MODE?

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