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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS563249

現行

17V 3A 恆定 1.4MHz 同步降壓電壓穩壓器

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產品規格表

TPS563249

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 17 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.6 Features Enable, Forced PWM, Over Current Protection, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Control mode D-CAP3 Switching frequency (min) (kHz) 1400 Switching frequency (max) (kHz) 1400 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 260 Duty cycle (max) (%) 80 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 17 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.6 Features Enable, Forced PWM, Over Current Protection, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Control mode D-CAP3 Switching frequency (min) (kHz) 1400 Switching frequency (max) (kHz) 1400 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 260 Duty cycle (max) (%) 80 Type Converter
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • 3-A Converter Integrated 70-mΩ and 30-mΩ FETs
  • D-CAP3™ Mode Control with Fast Transient Response
  • Input Voltage Range: 4.5 V to 17 V
  • Output Voltage Range: 0.6 V to 7 V
  • Forced Continuous Conduction Mode
  • Constant 1.4-MHz Switching Frequency
  • Low Shutdown Current Less than 10 µA
  • 1% Feedback Voltage Accuracy (25ºC)
  • Startup from Pre-Biased Output Voltage
  • Cycle-by-Cycle Overcurrent Limit
  • Hiccup-mode Overcurrent Protection
  • Non-Latch UVP and TSD Protections
  • Fixed Soft Start: 1.7 ms
  • 3-A Converter Integrated 70-mΩ and 30-mΩ FETs
  • D-CAP3™ Mode Control with Fast Transient Response
  • Input Voltage Range: 4.5 V to 17 V
  • Output Voltage Range: 0.6 V to 7 V
  • Forced Continuous Conduction Mode
  • Constant 1.4-MHz Switching Frequency
  • Low Shutdown Current Less than 10 µA
  • 1% Feedback Voltage Accuracy (25ºC)
  • Startup from Pre-Biased Output Voltage
  • Cycle-by-Cycle Overcurrent Limit
  • Hiccup-mode Overcurrent Protection
  • Non-Latch UVP and TSD Protections
  • Fixed Soft Start: 1.7 ms

The TPS563249 is a simple, easy-to-use, 3 A synchronous step-down converter in SOT-23 package.

The device is optimized to operate with minimum external component counts and also optimized to achieve low standby current.

This switching regulator employs D-CAP3 mode control providing a fast transient response and supporting both low-equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

TPS563249 operates in Forced Continuous Conduction Mode (FCCM), which maintains fixed 1.4 MHz switching frequency during light load operation and eliminates system interference. The TPS563249 is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC) package, and specified from a –40°C to 125°C junction temperature.

The TPS563249 is a simple, easy-to-use, 3 A synchronous step-down converter in SOT-23 package.

The device is optimized to operate with minimum external component counts and also optimized to achieve low standby current.

This switching regulator employs D-CAP3 mode control providing a fast transient response and supporting both low-equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

TPS563249 operates in Forced Continuous Conduction Mode (FCCM), which maintains fixed 1.4 MHz switching frequency during light load operation and eliminates system interference. The TPS563249 is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC) package, and specified from a –40°C to 125°C junction temperature.
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類型 標題 日期
* Data sheet TPS563249 17-V, 3-A, Constant 1.4-MHz Synchronous Step-Down Voltage Regulator datasheet (Rev. A) PDF | HTML 2018年 12月 14日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
Technical article Understanding and managing buck regulator output ripple PDF | HTML 2020年 6月 18日
Technical article Options for reducing the MLCC count for DC/DC switching regulators PDF | HTML 2019年 9月 17日
Application note How to Do PCB Modeling For a Power Converter (Rev. A) 2019年 4月 2日
Technical article 3 tips for reducing wireless network interference in access point equipment PDF | HTML 2018年 10月 8日
Technical article Keeping DC/DC solutions (super) simple for cost-sensitive applications PDF | HTML 2016年 10月 18日
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 2013年 1月 2日

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開發板

TPS563249EVM-031 — 3A 穩壓器評估模組

TPS563249 是一款採用 SOT-23 封裝的簡單易用 3-A 同步降壓轉換器。本裝置經過最佳化設計，可在最少外部元件的情況下運作，並同時實現低待機電流。此切換模式電源供應器 (SMPS) 裝置採用 D-CAP2 模式控制，提供快速暫態響應，並支援低等效串聯電阻 (ESR) 輸出電容器，例如專用聚合物和無外部補償元件的超低 ESR 陶瓷電容器。TPS563249 在強制連續傳導模式 (FCCM) 下運作，可在輕負載運作期間維持固定的 1.4-MHz 切換頻率，並藉此消除系統干擾。TPS563249 採用 6 接腳 1.6-mm × 2.9-mm SOT (DDC) 封裝，適用於 (...)

使用指南: PDF | HTML
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TPS563249 PSpice Transient Model

SLVMCY3.ZIP (84 KB) - PSpice Model
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SOT-23-THN (DDC) 6 Ultra Librarian
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