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TPS56339

現行

4.5V 至 24V 輸入、3A 輸出同步降壓轉換器

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 16 Vout (min) (V) 0.8 Features Enable, Light-load efficiency, Soft-start fixed, Synchronous rectification Control mode ACM/AECM Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 93 Duty cycle (max) (%) 95 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 16 Vout (min) (V) 0.8 Features Enable, Light-load efficiency, Soft-start fixed, Synchronous rectification Control mode ACM/AECM Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 93 Duty cycle (max) (%) 95 Type Converter
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Input voltage range: 4.5 V to 24 V
  • Output voltage range: 0.8 V to 16 V
  • 3-A maximum continuous output current
  • Fixed 500-kHz switching frequency
  • Support up to 97% duty cycle
  • Integrated 70-mΩ and 35-mΩ MOSFETs
  • Typical 3-µA shutdown current
  • Typical 98-µA quiescent current
  • Internal 5-ms soft-start
  • Internal loop compensation for ease use
  • Cycle-by-cycle current limit for both high-side and low-side MOSFETs
  • Non-latched UVP, UVLO and TSD protections
  • SOT-23 (6) package
  • Create a custom design using TPS56339 with the WEBENCH® Power Designer
  • Input voltage range: 4.5 V to 24 V
  • Output voltage range: 0.8 V to 16 V
  • 3-A maximum continuous output current
  • Fixed 500-kHz switching frequency
  • Support up to 97% duty cycle
  • Integrated 70-mΩ and 35-mΩ MOSFETs
  • Typical 3-µA shutdown current
  • Typical 98-µA quiescent current
  • Internal 5-ms soft-start
  • Internal loop compensation for ease use
  • Cycle-by-cycle current limit for both high-side and low-side MOSFETs
  • Non-latched UVP, UVLO and TSD protections
  • SOT-23 (6) package
  • Create a custom design using TPS56339 with the WEBENCH® Power Designer

The TPS56339 is a 4.5-V to 24-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching MOSFETs, internal loop compensation and 5-ms internal soft-start to reduce component count. By employing the SOT-23 (6) package, the device achieves the high power density and offers small footprint on PCB.

The TPS56339 employs Advanced Emulated Current Mode (AECM) control that can get fast transient response with fixed frequency. The internal adaptive loop adjustment eliminates the need for external compensation over a wide voltage output range.

Cycle-by-cycle current limit on the high-side protects the device in current overload conditions and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection will be triggered under undervoltage and thermal shutdown protections.

The TPS56339 is a 4.5-V to 24-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching MOSFETs, internal loop compensation and 5-ms internal soft-start to reduce component count. By employing the SOT-23 (6) package, the device achieves the high power density and offers small footprint on PCB.

The TPS56339 employs Advanced Emulated Current Mode (AECM) control that can get fast transient response with fixed frequency. The internal adaptive loop adjustment eliminates the need for external compensation over a wide voltage output range.

Cycle-by-cycle current limit on the high-side protects the device in current overload conditions and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection will be triggered under undervoltage and thermal shutdown protections.

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TPS62933 現行 採用 SOT-583 封裝的 3.8-V 至 30-V、3-A、200-kHz 至 2.2-MHz、低 IQ 同步降壓轉換器 30 VIN with higher frequency and lower IQ.

技術文件

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類型 標題 日期
* Data sheet TPS56339 4.5-V to 24-V Input, 3-A Output Synchronous Buck Converter datasheet (Rev. A) PDF | HTML 2019年 5月 15日
White paper Achieving Fast Load-Transient Response and Low EMI with the AECM DC/DC Control (Rev. A) PDF | HTML 2022年 10月 24日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日

設計與開發

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開發板

TPS56339EVM — 3-A 穩壓器評估模組

TPS56339 評估模組 (EVM) 用於評估 TPS56339。 TPS56339 是一款進階模擬電流模式 (AECM) 同步降壓式 DC/DC 轉換器,可提供 3-A 連續輸出電流,提供進階 Eco-mode™ 以維持高輕負載效率。TPS56339 整合了可運作 26-V 的 MOSFET,適用於透過 19-V 匯流排電源線運作的應用。TPS56339 採用 AECM 控制架構,可獲得固定切換頻率和快速負載暫態性能,提供簡化濾波器之設計以克服 EMI 雜訊。內部適應性零點調整功能可在高達 16V 的廣泛輸出範圍內消除外部補償的需求。
使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS56339 PSPICE Transient Model

SLVMD41.ZIP (106 KB) - PSpice Model
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23-THN (DDC) 6 Ultra Librarian

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  • 認證摘要
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內含資訊:
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