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DC/DC 轉換器

TPS53311

現行

具 Eco-Mode 和流暢 PWM 的 2.9V 至 6V 輸入、3A 同步降壓轉換器

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產品規格表

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功能相同，但引腳輸出與所比較的裝置不同
TPSM82813 現行 具備選用頻率同步化、可調整緩啟動和追蹤功能的 6V 3A 降壓模組 Module with integrated inductor with or without spread spectrum

TPS53311

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) 6 Vin (min) (V) 2.9 Vout (max) (V) 4.2 Vout (min) (V) 0.6 Features Enable, Light load efficiency, Output discharge, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00032 Duty cycle (max) (%) 99
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.9 Vout (max) (V) 4.2 Vout (min) (V) 0.6 Features Enable, Light load efficiency, Output discharge, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00032 Duty cycle (max) (%) 99
VQFN (RGT) 16 9 mm² 3 x 3
  • 95.5% Maximum Efficiency
  • Continuous 3-A Output Current
  • Supports All MLCC Output Capacitor
  • SmoothPWM™ Auto-Skip Eco-mode™ for Light-Load Efficiency
  • Voltage Mode Control
  • Supports Master-Slave Interleaved Operation
  • Synchronization up to ±20% of Nominal Frequency
  • Conversion Voltage Range From 2.9 V to 6 V
  • Soft-Stop Output Discharge During Disable
  • Adjustable Output Voltage Ranging From 0.6 V to 0.84 V × VIN
  • Overcurrent, Overvoltage, and Overtemperature Protection
  • Small, 3 mm × 3 mm, 16-Pin VQFN Package
  • Open-Drain Power Good Indication
  • Internal Boot Strap Switch
  • Low RDS(on), 24 mΩ With 3.3-V Input and 19-mΩ With 5-V Input
  • Supports Prebias Start-Up Functionality
  • 95.5% Maximum Efficiency
  • Continuous 3-A Output Current
  • Supports All MLCC Output Capacitor
  • SmoothPWM™ Auto-Skip Eco-mode™ for Light-Load Efficiency
  • Voltage Mode Control
  • Supports Master-Slave Interleaved Operation
  • Synchronization up to ±20% of Nominal Frequency
  • Conversion Voltage Range From 2.9 V to 6 V
  • Soft-Stop Output Discharge During Disable
  • Adjustable Output Voltage Ranging From 0.6 V to 0.84 V × VIN
  • Overcurrent, Overvoltage, and Overtemperature Protection
  • Small, 3 mm × 3 mm, 16-Pin VQFN Package
  • Open-Drain Power Good Indication
  • Internal Boot Strap Switch
  • Low RDS(on), 24 mΩ With 3.3-V Input and 19-mΩ With 5-V Input
  • Supports Prebias Start-Up Functionality

The TPS53311 provides a fully integrated 3-V to 5-V VIN integrated synchronous FET converter solution with 16 total components, in 200 mm2 of PCB area. Due to the low RDS(on) and TI Proprietary SmoothPWM™ skip mode of operation, it enables 95.5% peak efficiency, and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power-dense, 3-A solution.

The TPS53311 features a 1.1-MHz switching frequency, SKIP mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V, and output voltage is adjustable from 0.6 V to 0.84 V × VIN.

The TPS53311 is available in the 3 mm × 3 mm 16-pin VQFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.

The TPS53311 provides a fully integrated 3-V to 5-V VIN integrated synchronous FET converter solution with 16 total components, in 200 mm2 of PCB area. Due to the low RDS(on) and TI Proprietary SmoothPWM™ skip mode of operation, it enables 95.5% peak efficiency, and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power-dense, 3-A solution.

The TPS53311 features a 1.1-MHz switching frequency, SKIP mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V, and output voltage is adjustable from 0.6 V to 0.84 V × VIN.

The TPS53311 is available in the 3 mm × 3 mm 16-pin VQFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.
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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet TPS53311 3-A Step-Down Regulator With Integrated Switcher datasheet (Rev. B) PDF | HTML 2016年 9月 27日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev 2017年 1月 25日
EVM User's guide Using the TPS53311EVM-561, a 3-A Eco-mode(TM) Integrated Switcher w/Mastr-Slave (Rev. A) 2010年 11月 11日

設計與開發

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開發板

TPS53311EVM-561 — 用於 TPS53311 同步降壓 DCDC 轉換器的評估模組

The TPS53311EVM-561 is a fully assembled and tested circuit for evaluating the TPS53311 Synchronous Step Down DC/DC Converter.
使用指南: PDF
TI.com 無法提供
模擬型號

TPS53311 PSpice Average Model

SLIM226.ZIP (62 KB) - PSpice Model
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計算工具

SLUC263 — Type III Compensation Calculation Tool

支援產品和硬體

支援產品和硬體
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配置圖

Intel® Atom™ processor D425 and D525 Power Management Solutions

SLTR022.PDF (27 KB)
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RGT) 16 Ultra Librarian
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