Datasheet > TPS5430-Q1

TPS5430-Q1

更新时间： 2024-11-29 12:16:15

品牌	Logo	应用领域
德州仪器 - TI		转换器输入元件
页数	文件大小	规格书
27页	982K
描述
3-A WIDE-INPUT-RANGE STEP-DOWN SWIFT CONVERTER

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TPS5430-Q1 数据手册

TPS5430-Q1

www.ti.com ................................................................................................................................................... SLVS751C–NOVEMBER 2007–REVISED JULY 2009

3-A WIDE-INPUT-RANGE STEP-DOWN SWIFT™ CONVERTER

FEATURES

DESCRIPTION

•

Qualified for Automotive Applications

Wide Input Voltage Range: 5.5 V to 36 V

As a member of the SWIFT™ family of dc/dc

regulators, the TPS5430 is a high-output-current

pulse-width modulation (PWM) converter that

Up to 3-A Continuous (4-A Peak) Output

Current

integrates

MOSFET. Included on the substrate with the listed

features are high-performance voltage error

low-resistance high-side N-channel

•

High Efficiency up to 95% Enabled by 110-mΩ

Integrated MOSFET Switch

amplifier that provides tight voltage regulation

accuracy under transient conditions, an undervoltage

lockout (UVLO) circuit to prevent start-up until the

input voltage reaches 5.5 V, an internally set

slow-start circuit to limit inrush currents, and a voltage

feed-forward circuit to improve the transient

response. Using the enable (ENA) pin, shutdown

supply current is reduced to 18 µA typically. Other

features include an active-high enable, overcurrent

limiting, overvoltage protection (OVP) and thermal

shutdown. To reduce design complexity and external

component count, the TPS5430 feedback loop is

internally compensated. The TPS5430 regulates a

wide variety of power sources including 24-V buses.

Wide Output Voltage Range: Adjustable Down

to 1.22 V With 1.5% Initial Accuracy

Internal Compensation Minimizes External

Parts Count

Fixed 500-kHz Switching Frequency for Small

Filter Size

Improved Line Regulation and Transient

Response by Input Voltage Feed Forward

System Protected by Overcurrent Limiting,

Overvoltage Protection, and Thermal

Shutdown

•

–40°C to 125°C Operating Junction

Temperature Range

The TPS5430 device is available in a thermally

enhanced, easy-to-use 8-pin SOIC PowerPAD™

package. 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.

Available in Small Thermally Enhanced 8-Pin

SOIC PowerPAD™ Package

For SWIFT™ Documentation, Application

Notes, and Design Software, See the TI

Website at www.ti.com/swift

APPLICATIONS

•

Industrial and Car Audio Power Supplies

Battery Chargers, High-Power LED Supplies

12-V/24-V Distributed Power Systems

Simplified Schematic

Efficiency vs Output Current

100

VIN

VOUT

VIN

TPS5430

BOOT

ENA VSENSE

GND

V_I= 12 V

V_O= 5 V

f_s= 500 kHz

T_A= 25^oC

0.5

1.5

2.5

3.5

− Output Current − A

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.

PowerPAD, SWIFT are trademarks of Texas Instruments.

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...27

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与TPS5430-Q1相关器件

型号	品牌	获取价格	描述	数据表
TPS5430QDDARQ1	TI	获取价格	3-A WIDE-INPUT-RANGE STEP-DOWN SWIFT CONVERTER
TPS5431	TI	获取价格	1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS ST
TPS54310	TI	获取价格	3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs
TPS54310_15	TI	获取价格	3-V to 6-V Input, 3-A Output Synchronous-Buck
TPS54310-EP	TI	获取价格	3-V TO 6-V INPUT, 3-A OUTPUT,SYNCHRONOUS BUCK
TPS54310-EP_16	TI	获取价格	3-V TO 6-V INPUT, 3-A OUTPUT, SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT)
TPS54310MPWPREP	TI	获取价格	3-V TO 6-V INPUT, 3-A OUTPUT,SYNCHRONOUS BUCK
TPS54310PWP	TI	获取价格	3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs
TPS54310PWPG4	TI	获取价格	输入电压为 3V 至 6V 的 3A 同步降压转换器 \| PWP \| 20 \| -40 t
TPS54310PWPR	TI	获取价格	3V to 6V Input, 3A Synchronous Step-Down Converter 20-HTSSOP -40 to 125

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