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TPS62177

現行

具休眠模式的 28V、0.5A 降壓轉換器

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 0.5 Vin (max) (V) 28 Vin (min) (V) 4.7 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Features Enable, Light-load efficiency, Output discharge, Power good, Synchronous rectification Control mode Constant on-time (COT), DCS-Control Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 4.8 Duty cycle (max) (%) 100 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 0.5 Vin (max) (V) 28 Vin (min) (V) 4.7 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Features Enable, Light-load efficiency, Output discharge, Power good, Synchronous rectification Control mode Constant on-time (COT), DCS-Control Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 4.8 Duty cycle (max) (%) 100 Type Converter
WSON (DQC) 10 6 mm² 3 x 2
  • DCS-Control™ Topology
  • Input Voltage Range 4.75 V to 28 V
  • Quiescent Current Typically 4.8 µA (Sleep Mode)
  • 100% Duty Cycle Mode
  • Active Output Discharge
  • Power Good Output
  • Output Current of 500 mA
  • Output Voltage Range 1 VDC to 6 V
  • Switching Frequency of Typically 1 MHz
  • Seamless Power Save Mode Transition
  • Undervoltage Lockout
  • Short Circuit Protection
  • Over Temperature Protection
  • Available in 2-mm × 3-mm 10-pin WSON Package
  • DCS-Control™ Topology
  • Input Voltage Range 4.75 V to 28 V
  • Quiescent Current Typically 4.8 µA (Sleep Mode)
  • 100% Duty Cycle Mode
  • Active Output Discharge
  • Power Good Output
  • Output Current of 500 mA
  • Output Voltage Range 1 VDC to 6 V
  • Switching Frequency of Typically 1 MHz
  • Seamless Power Save Mode Transition
  • Undervoltage Lockout
  • Short Circuit Protection
  • Over Temperature Protection
  • Available in 2-mm × 3-mm 10-pin WSON Package

The TPS6217x is a high efficiency synchronous step-down DC/DC converter, based on the DCS-Control™ topology.

With a wide operating input voltage range of 4.75 V to 28 V, the device is ideally suited for systems powered from multi cell Li-Ion as well as 12 V and even higher intermediate supply rails, providing up to 500-mA output current.

The TPS6217x automatically enters power save mode at light loads, to maintain high efficiency across the whole load range. As well, it features a sleep mode to supply applications with advanced power save modes like ultra low power micro controllers. The power good output may be used for power sequencing and/or power on reset.

The device features a typical quiescent current of 22 µA in normal mode and 4.8 µA in sleep mode. In sleep mode, the efficiency at very low load currents can be increased by as much as 20%. In shutdown mode, the shutdown current is less than 2 µA and the output is actively discharged.

The TPS6217x, available in an adjustable and a fixed output voltage version, is packaged in a small 2-mm × 3-mm 10-pin WSON package.

The TPS6217x is a high efficiency synchronous step-down DC/DC converter, based on the DCS-Control™ topology.

With a wide operating input voltage range of 4.75 V to 28 V, the device is ideally suited for systems powered from multi cell Li-Ion as well as 12 V and even higher intermediate supply rails, providing up to 500-mA output current.

The TPS6217x automatically enters power save mode at light loads, to maintain high efficiency across the whole load range. As well, it features a sleep mode to supply applications with advanced power save modes like ultra low power micro controllers. The power good output may be used for power sequencing and/or power on reset.

The device features a typical quiescent current of 22 µA in normal mode and 4.8 µA in sleep mode. In sleep mode, the efficiency at very low load currents can be increased by as much as 20%. In shutdown mode, the shutdown current is less than 2 µA and the output is actively discharged.

The TPS6217x, available in an adjustable and a fixed output voltage version, is packaged in a small 2-mm × 3-mm 10-pin WSON package.

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TPS62172 現行 採用 2x2 QFN 封裝的 3–17V 0.5A 降壓轉換器 A similar product with a 17-V input range.

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類型 標題 日期
* Data sheet TPS6217x 28-V, 0.5-A Step-Down Converter With Sleep Mode datasheet (Rev. C) PDF | HTML 2015年 3月 5日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 2022年 5月 23日
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018年 6月 22日
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017年 10月 24日
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 2016年 10月 24日
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 2015年 10月 30日
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 2015年 8月 17日
Analog Design Journal Five steps to a great PCB layout for a step-down converter 2015年 1月 29日
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 2014年 1月 22日
Application note Using the TPS62175 in an Inverting Buck Boost Topology (Rev. A) 2013年 10月 2日
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 2013年 7月 25日
Application note Optimizing the TPS62175 Output Filter 2012年 10月 17日
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) 2012年 8月 9日
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012年 1月 13日
Application note Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) 2012年 1月 12日
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 2011年 9月 19日
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011年 6月 17日

設計與開發

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開發板

TPS62175EVM-098 — 具有休眠/睡眠/待機模式的 TPS62175EVM-098 降壓轉換器評估模組基板

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TI.com 無法提供
模擬型號

TPS62177 PSpice Unencrypted Transient Model (Rev. A)

SLVM733A.ZIP (54 KB) - PSpice Model
Gerber 檔案

PWR098A Gerber files

SLVC453.ZIP (281 KB)
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WSON (DQC) 10 Ultra Librarian

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