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AC/DC & DC/DC converters (integrated FET)

TPS62674

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采用半高芯片级封装的 500mA、6MHz 高效降压转换器，Vout=1.26V

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open-in-new 比较替代产品
功能与比较器件相同但引脚有所不同
TPS62801 正在供货 采用 0.7mm x 1.05mm 芯片级封装的 1.75V 至 5.5V 输入、1A 超低 IQ 降压转换器 Smaller solution size and lower quiescent current

TPS62674

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产品详情

Iout (max) (A) 0.5 Vin (min) (V) 2.3 Vin (max) (V) 4.8 Type Converter Switching frequency (min) (kHz) 4900 Switching frequency (max) (kHz) 6000 Features Enable, Forced PWM, Light load efficiency, Output discharge, Spread Spectrum, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.26 Vout (max) (V) 1.26 Rating Catalog Operating temperature range (°C) -40 to 85
Iout (max) (A) 0.5 Vin (min) (V) 2.3 Vin (max) (V) 4.8 Type Converter Switching frequency (min) (kHz) 4900 Switching frequency (max) (kHz) 6000 Features Enable, Forced PWM, Light load efficiency, Output discharge, Spread Spectrum, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.26 Vout (max) (V) 1.26 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFD) 6 1.4000000000000001 mm² 1.4000000000000001 x 1
  • 92% Efficiency at 6MHz Operation
  • 17µA Quiescent Current
  • Wide VIN Range From 2.3V to 4.8V
  • 6MHz Regulated Frequency Operation
  • Spread Spectrum, PWM Frequency Dithering
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Low Ripple Light-Load PFM Mode
  • ≥35dB VIN PSRR (1kHz to 10kHz)
  • Simple Logic Enable Inputs
  • Supports External Clock Presence Detect Enable Input
  • Three Surface-Mount External Components Required (One 0603 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 0.33-mm Component Profile Solution
  • Total Solution Size <10 mm2
  • Available in a 6-Pin NanoFree™ (CSP) Ultra-Thin Packaging, 0.4 mm Max. Height
  • 92% Efficiency at 6MHz Operation
  • 17µA Quiescent Current
  • Wide VIN Range From 2.3V to 4.8V
  • 6MHz Regulated Frequency Operation
  • Spread Spectrum, PWM Frequency Dithering
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Low Ripple Light-Load PFM Mode
  • ≥35dB VIN PSRR (1kHz to 10kHz)
  • Simple Logic Enable Inputs
  • Supports External Clock Presence Detect Enable Input
  • Three Surface-Mount External Components Required (One 0603 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 0.33-mm Component Profile Solution
  • Total Solution Size <10 mm2
  • Available in a 6-Pin NanoFree™ (CSP) Ultra-Thin Packaging, 0.4 mm Max. Height

The TPS6267x devices are high-frequency synchronous step-down dc-dc converters optimized for small battery-powered applications. Intended for low-power applications, the TPS6267x supports up to 650-mA load current and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3V to 4.8V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.05V to 2.1V. The TPS6267x operates at a regulated 6-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

The PFM mode extends the battery life by reducing the quiescent current to 17µA (typ) during light load operation. For noise-sensitive applications, the device has PWM spread spectrum capability providing a lower noise regulated output, as well as low noise at the input. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.

The TPS6267x devices are high-frequency synchronous step-down dc-dc converters optimized for small battery-powered applications. Intended for low-power applications, the TPS6267x supports up to 650-mA load current and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3V to 4.8V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.05V to 2.1V. The TPS6267x operates at a regulated 6-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

The PFM mode extends the battery life by reducing the quiescent current to 17µA (typ) during light load operation. For noise-sensitive applications, the device has PWM spread spectrum capability providing a lower noise regulated output, as well as low noise at the input. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.
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类型 标题 下载最新的英语版本 日期
* 数据表 TPS6267x 500-mA/650-mA, 6-MHz High-Efficiency Step-Down Converter in Low Profile Chip Scale Packaging (Height < 0.4mm) 数据表 (Rev. G) PDF | HTML 2017年 1月 17日
应用手册 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
模拟设计期刊 Understanding 100% mode in low-power DC/DC converters 2018年 6月 22日
模拟设计期刊 Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017年 10月 24日
模拟设计期刊 Testing tips for applying external power to supply outputs without an input voltage 2016年 10月 24日
应用手册 Basic Calculation of a Buck Converter's Power Stage (Rev. B) 2015年 8月 17日
模拟设计期刊 实现降压型转换器出色 PCB 布局的五个步骤 英语版 2015年 5月 1日
应用手册 Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012年 1月 13日
模拟设计期刊 IQ：它是什么、不是什么以及如何使用 英语版 2011年 8月 17日

设计和开发

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包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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