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

TPS5450-Q1

現行

車用 5.5V 至 36V、5A 降壓轉換器

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LMR14050-Q1 現行 具 40uA IQ 的 SIMPLE SWITCHER® 車用 40V、5A、2.2MHz 降壓轉換器 36V 5A Non-sync buck converter

TPS5450-Q1

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 5 Vin (min) (V) 5.5 Vin (max) (V) 36 Topology Buck Type Converter Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Over Current Protection, Soft Start Fixed Control mode Voltage mode Vout (min) (V) 1.22 Vout (max) (V) 31 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.003
Iout (max) (A) 5 Vin (min) (V) 5.5 Vin (max) (V) 36 Topology Buck Type Converter Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Over Current Protection, Soft Start Fixed Control mode Voltage mode Vout (min) (V) 1.22 Vout (max) (V) 31 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.003
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Qualified for Automotive Applications
  • Wide Input Voltage Range: 5.5 V to 36 V
  • Up to 5-A Continuous (6-A Peak) Output Current
  • High Efficiency Greater than 90% Enabled by 110-mΩ Integrated MOSFET Switch
  • 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
  • 18-µA Shutdown Supply Current
  • 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
  • Available in Small Thermally Enhanced 8-Pin SOIC PowerPAD™ Package
  • Create a custom design using the TPS5450-Q1 with the WEBENCH® Power Designer
  • Qualified for Automotive Applications
  • Wide Input Voltage Range: 5.5 V to 36 V
  • Up to 5-A Continuous (6-A Peak) Output Current
  • High Efficiency Greater than 90% Enabled by 110-mΩ Integrated MOSFET Switch
  • 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
  • 18-µA Shutdown Supply Current
  • 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
  • Available in Small Thermally Enhanced 8-Pin SOIC PowerPAD™ Package
  • Create a custom design using the TPS5450-Q1 with the WEBENCH® Power Designer

The TPS5450-Q1 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 5.5 V, an internally set slow-start circuit to limit inrush currents, and a voltage feedforward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection, and thermal shutdown. To reduce design complexity and external component count, the TPS5450-Q1 feedback loop is internally compensated.

The TPS5450-Q1 device is available in a thermally enhanced, 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and software tools to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.

The TPS5450-Q1 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 5.5 V, an internally set slow-start circuit to limit inrush currents, and a voltage feedforward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection, and thermal shutdown. To reduce design complexity and external component count, the TPS5450-Q1 feedback loop is internally compensated.

The TPS5450-Q1 device is available in a thermally enhanced, 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and software tools to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.
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* Data sheet TPS5450-Q1 Automotive 5.5-V to 36-V, 5-A Buck Converter datasheet (Rev. B) PDF | HTML 2019年 6月 24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

TPS5450EVM-254 — 5A 評估模組

This evaluation module is designed to demonstrate a typical printed-circuit-board application using the TPS5450 regulator (Vin 10 V - 31 V, up to 5 A). This does not reflect the full range of possible input and output voltages that may be used when designing with this part.

The switching frequency (...)

使用指南: PDF
TI.com 無法提供
模擬型號

TPS5450 PSpice Transient Model

SLVM679.ZIP (200 KB) - PSpice Model
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模擬型號

TPS5450 TINA-TI Transient Reference Design

SLIM218.TSC (62 KB) - TINA-TI Reference Design
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模擬型號

TPS5450 TINA-TI Transient Spice Model

SLIM219.TSM (12 KB) - TINA-TI Spice Model
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模擬型號

TPS5450 Unencrypted PSpice Transient Model

SLVMCV0.ZIP (3 KB) - PSpice Model
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參考設計

TIDA-00148 — 適用於車載資訊娛樂系統的 USB 2.0/3.0 大量儲存橋接器

This TIDA-00148 reference design features the TUSB9261DEMO which allows quick evaluation of system compatibility for connections to SATA devices used for automotive infotainment systems. The firmware used in TIDA-00148 is capable of supporting a single SATA drive such as a solid state drive, hard (...)
Design guide: PDF
電路圖: PDF
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