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TPS53311

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具有 Eco-Mode 和流畅 PWM 的 2.9V 至 6V 输入、3A 同步降压转换器

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TPSM82813 正在供货 具有可选频率同步、可调节软启动和跟踪功能的 6V 3A 降压模块 Module with integrated inductor with or without spread spectrum

TPS53311

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产品详情

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 mm × 3 mm)
  • 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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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 TPS53311 3-A Step-Down Regulator With Integrated Switcher 数据表 (Rev. B) PDF | HTML 2016-9-27
选择指南 电源管理指南 2018 2018-7-31
应用手册 Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev 2017-1-25
EVM 用户指南 Using the TPS53311EVM-561, a 3-A Eco-mode(TM) Integrated Switcher w/Mastr-Slave (Rev. A) 2010-11-11

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

TPS53311EVM-561 — 用于 TPS53311 同步降压 DCDC 转换器的评估模块

TPS53311EVM-561 是一块完全组装且经过测试的电路板，用于评估 TPS53311 同步降压 DC/DC 转换器。
用户指南: PDF
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仿真模型

TPS53311 PSpice Average Model

SLIM226.ZIP (62 KB) - PSpice 模型
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计算工具

SLUC263 — Type III Compensation Calculation Tool

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封装 引脚 CAD 符号、封装和 3D 模型
VQFN (RGT) 16 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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