TPS53311 - 具有 Eco-Mode 和流畅 PWM 的 2.9V 至 6V 输入、3A 同步降压转换器

TPS53311是TI德州仪器公司的一款转换器（集成开关）产品，TPS53311是具有 Eco-Mode 和流畅 PWM 的 2.9V 至 6V 输入、3A 同步降压转换器，本站介绍了TPS53311的封装应用图解、特点和优点、功能等，并给出了与TPS53311相关的TI元器件型号供参考。

TPS53311 - 具有 Eco-Mode 和流畅 PWM 的 2.9V 至 6V 输入、3A 同步降压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS53310 provides a fully integrated 3-V to 5-V VIN integrated synchronous FET converter solution with 16 total components, in 200mm2 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 100mA. 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, pre-bias startup, internal softstart, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage and over-temperature protections and all ceramic output capacitor support. It supports supply voltage from 2.9V to 3.5V and conversion voltage from 2.9V to 6.0V, and output voltage is adjustable from 0.6V to 0.84V × VIN.

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

产品特性

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 Between 2.9 V and 6.0 V
Soft-Stop Output Discharge During Disable
Adjustable Output Voltage Ranging Between 0.6 V and 0.84 V × VIN
Overcurrent, Overvoltage and Over-Temperature Protection
Small, 3 mm × 3 mm , 16-Pin QFN 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 Pre-Bias Start-Up Functionality

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