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AC/DC & DC/DC converters (integrated FET)

TPS54341

現行

具緩啟動和 Eco-mode™的 4.5V 至 42V 輸入 3.5A 降壓 DC-DC 轉換器

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產品規格表

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LMR51440 現行 36-V、4-A 同步降壓轉換器 Smaller solution size, higher efficiency and lower EMI.

TPS54341

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 3.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Topology Buck Type Converter Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 41 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000152
Iout (max) (A) 3.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Topology Buck Type Converter Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 41 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000152
WSON (DPR) 10 16 mm² 4 x 4
  • High Efficiency at Light Loads with Pulse Skipping Eco-mode™
  • 87-mΩ High-Side MOSFET
  • 152-µA Operating Quiescent Current and 2-µA Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads with Integrated BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • UV and OV Power-Good Output
  • Adjustable Soft-Start and Sequencing
  • 0.8-V 1% Internal Voltage Reference
  • 10-Pin WSON with Thermal Pad Package
  • –40°C to 150°C TJ Operating Range
  • Supported by WEBENCH® Software Tool
  • High Efficiency at Light Loads with Pulse Skipping Eco-mode™
  • 87-mΩ High-Side MOSFET
  • 152-µA Operating Quiescent Current and 2-µA Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads with Integrated BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • UV and OV Power-Good Output
  • Adjustable Soft-Start and Sequencing
  • 0.8-V 1% Internal Voltage Reference
  • 10-Pin WSON with Thermal Pad Package
  • –40°C to 150°C TJ Operating Range
  • Supported by WEBENCH® Software Tool

The TPS54341 device is a 42-V, 3.5-A step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 152 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor divider at the enable pin. The output voltage startup ramp is controlled by the soft start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 93% to 106% of the nominal voltage.

A wide adjustable switching-frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback and thermal shutdown protects internal and external components during an overload condition.

The TPS54341 device is available in a 10-pin 4-mm × 4-mm WSON package.

The TPS54341 device is a 42-V, 3.5-A step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 152 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor divider at the enable pin. The output voltage startup ramp is controlled by the soft start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 93% to 106% of the nominal voltage.

A wide adjustable switching-frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback and thermal shutdown protects internal and external components during an overload condition.

The TPS54341 device is available in a 10-pin 4-mm × 4-mm WSON package.
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類型 標題 日期
* Data sheet TPS54341 4.5-V to 42-V Input, 3.5-A Step-Down DC-DC Converter With Soft-Start And Eco-Mode™ datasheet (Rev. A) PDF | HTML 2016年 10月 31日
EVM User's guide Evaluation Module for the TPS54341 Step-Down Converter 2013年 11月 5日
Application note Creating a Universal Car Charger for USB Devices From the TPS54240 and TPS2511 (Rev. E) 2013年 9月 16日
Application note Create a Split-Rail Power Supply with a Wide Input Voltage Buck Regulator (Rev. A) 2012年 10月 26日
Application note Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) 2012年 10月 26日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS54341EVM-555 — TPS54341EVM-555 4.5 至 60V 輸入 3.5A 降壓 DC-DC 轉換器評估模組

使用指南: PDF
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模擬型號

TPS54341 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM972A.ZIP (817 KB) - PSpice Model
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計算工具

SLVC452 — TPS54360 and TPS54361 Family Design Excel Tool

支援產品和硬體

支援產品和硬體

產品
AC/DC & DC/DC converters (integrated FET)
TPS54340 — 具 Eco-mode™ 的 42 V 輸出、3.5 A 降壓式 DC/DC 轉換器 TPS54341 — 具緩啟動和 Eco-mode™的 4.5V 至 42V 輸入 3.5A 降壓 DC-DC 轉換器 TPS54360 — 具 Eco-mode 的 4.5V 至 60V 輸入，3.5A 降壓轉換器 TPS54360B — 具有 Eco-Mode™ 的 60V 輸入、3.5A 降壓 DC/DC 轉換器 TPS54361 — 具有緩啟動和 Eco-mode™ 的 4.5V 至 60V 輸入 3.5A 降壓 DC-DC 轉換器 TPS54540 — 具 Eco-Mode 的 42 V、5 A 降壓式 DC-DC 轉換器 TPS54541 — 具緩啟動和 Eco-mode™的 4.5V 至 42V 輸入 5A 降壓 DC-DC 轉換器 TPS54560 — 具 Eco-Mode 的 4.5V 至 60V 輸入、5A 降壓轉換器 TPS54560B — 具 Eco-Mode™ 的 4.5V 至 60V 輸入、5A 降壓 DC-DC 轉換器 TPS54561 — 具緩啟動和 Eco-mode™的 4.5V 至 60V 輸入 5A 降壓 DC-DC 轉換器
硬體開發
開發板
TPS54340EVM-182 — TPS54340 降壓轉換器評估模組 TPS54341EVM-555 — TPS54341EVM-555 4.5 至 60V 輸入 3.5A 降壓 DC-DC 轉換器評估模組 TPS54360EVM-182 — 60V 輸入、3.5A、降壓轉換器評估模組 TPS54361EVM-555 — TPS54361EVM-555 TPS54361 4.5-V 至 60-V 輸入 3.5-A 降壓式 DC/DC 轉換器評估模組 TPS54541EVM-555 — TPS54541EVM-555 - 4.5V 至 42V 輸入 5A 降壓 DC-DC 轉換器評估模組 TPS54560EVM-515 — TPS54560 降壓 DC-DC 轉換器評估模組 TPS54561EVM-555 — TPS54561EVM-555 - 60V 輸入 5A 降壓 DC-DC 轉換器評估模組
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參考設計

TIDEP-01008 — Jacinto™ ADAS 處理器上的多感測器平臺參考設計

The multi-sensor platform reference design for Advanced Driver Assistance Systems (ADAS) from D3 Engineering provides qualified developers with a fully functioning evaluation platform for testing and development of ADAS applications, for use primarily in the automotive industry.  D3 also (...)
Design guide: PDF
電路圖: PDF
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