TPS5431

現行

5.5V 至 23V 輸入、3A、500kHz 降壓轉換器

立即訂購

產品規格表

document-pdfAcrobat TPS543x 3A, Wide Input Range, Step-Down Converter datasheet (Rev. K) (英文) PDF | HTML

TPS5431

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

3

Vin (min) (V)

5.5

Vin (max) (V)

23

Switching frequency (min) (kHz)

500

Switching frequency (max) (kHz)

500

Features

Enable

Control mode

Voltage mode

Vout (min) (V)

1.23

Vout (max) (V)

20

Iq (typ) (µA)

3000

Duty cycle (max) (%)

87

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

3

Vin (min) (V)

5.5

Vin (max) (V)

23

Switching frequency (min) (kHz)

500

Switching frequency (max) (kHz)

500

Features

Enable

Control mode

Voltage mode

Vout (min) (V)

1.23

Vout (max) (V)

20

Iq (typ) (µA)

3000

Duty cycle (max) (%)

87

HSOIC (DDA)

8

29.4 mm² 4.9 x 6

Wide input voltage range:
- TPS5430: 5.5V to 36V
- TPS5431: 5.5V to 23V
Up to 3A continuous (4A peak) output current
High efficiency up to 95% enabled by 100mΩ integrated MOSFET switch
Wide output voltage range: adjustable down to 1.22V with 1.5% initial accuracy
Internal compensation minimizes external parts count
Fixed 500kHz switching frequency for small filter size
Improved line regulation and transient response by input voltage feedforward
System protected by overcurrent limiting, overvoltage protection, and thermal shutdown
–40°C to 125°C operating junction temperature range
Available in small thermally enhanced 8-pin SO PowerPAD™ integrated circuit package
Create a custom design using the TPS5430 with the WEBENCH Power Designer

Wide input voltage range:
- TPS5430: 5.5V to 36V
- TPS5431: 5.5V to 23V
Up to 3A continuous (4A peak) output current
High efficiency up to 95% enabled by 100mΩ integrated MOSFET switch
Wide output voltage range: adjustable down to 1.22V with 1.5% initial accuracy
Internal compensation minimizes external parts count
Fixed 500kHz switching frequency for small filter size
Improved line regulation and transient response by input voltage feedforward
System protected by overcurrent limiting, overvoltage protection, and thermal shutdown
–40°C to 125°C operating junction temperature range
Available in small thermally enhanced 8-pin SO PowerPAD™ integrated circuit package
Create a custom design using the TPS5430 with the WEBENCH Power Designer

The TPS543x is a high-output-current PWM converter that integrates a low-resistance, high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5V; an internally set slow-start circuit to limit inrush currents; and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 15µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS543x feedback loop is internally compensated. The TPS5431 is intended to operate from power rails up to 23V. The TPS5430 regulates a wide variety of power sources including 24V bus.

The TPS543x device is available in a thermally enhanced, easy to use 8-pin SOIC PowerPAD integrated circuit package. TI provides evaluation modules and the Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

The TPS543x is a high-output-current PWM converter that integrates a low-resistance, high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5V; an internally set slow-start circuit to limit inrush currents; and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 15µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS543x feedback loop is internally compensated. The TPS5431 is intended to operate from power rails up to 23V. The TPS5430 regulates a wide variety of power sources including 24V bus.

The TPS543x device is available in a thermally enhanced, easy to use 8-pin SOIC PowerPAD integrated circuit package. TI provides evaluation modules and the Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

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檢視所有 3

	類型	標題		日期
*	Data sheet	TPS543x 3A, Wide Input Range, Step-Down Converter datasheet (Rev. K)	PDF \| HTML	2024年 1月 18日
	User guide	TPS543x Step-Down Converter Evaluation Module User's Guide (Rev. A)	PDF \| HTML	2021年 10月 11日
	Application note	Using TPS5410/20/30/31/50 w/Aluminum/Ceramic Output Capacitors (Rev. C)		2007年 3月 21日

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開發板

TPS5431EVM-173 — 9V 至 21Vin、3A 降壓轉換器

The TPS5431EVM-173 evaluation module allows the designer to evaluate the TPS5431 SWIFT DC/DC converter and is designed with very few external components. The input voltage range of this module is 9.0 V to 21 V and the output voltage is pre-set to 5 V. The output voltage can be easily (...)

使用指南: PDF | HTML