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DC/DC 轉換器

TPS62172

現行

以 2x2 QFN 封裝呈現的 3–17V 0.5A 降壓轉換器

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功能相似於所比較的產品。
TPS629206 現行 採用 SOT-583 封裝的 3V 至 17V、0.6A、低 IQ、同步降壓轉換器 Improved efficiency, smaller size and lower IQ.

TPS62172

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 0.5 Vin (max) (V) 17 Vin (min) (V) 3 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Features Enable, Light-load efficiency, Output discharge, Power good, Synchronous rectification, Tracking, Voltage Margining Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000017 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 0.5 Vin (max) (V) 17 Vin (min) (V) 3 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Features Enable, Light-load efficiency, Output discharge, Power good, Synchronous rectification, Tracking, Voltage Margining Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000017 Duty cycle (max) (%) 100
WSON (DSG) 8 4 mm² (2 mm × 2 mm)
  • DCS-Control™ Topology
  • Input Voltage Range from 3 V to 17 V
  • Up to 500-mA Output Current
  • Adjustable Output Voltage from 0.9 V to 6 V
  • Fixed Output Voltage Versions
  • Seamless Power Save Mode Transition
  • Typically 17-µA Quiescent Current
  • Power Good Output
  • 100% Duty Cycle Mode
  • Short Circuit Protection
  • Over Temperature Protection
  • Pin to Pin Compatible with TPS62160 and TPS62125
  • Available in a 2-mm × 2-mm 8-Pin WSON Package
  • Create a Custom Design using the TPS62170 with the WEBENCH® Power Designer
  • DCS-Control™ Topology
  • Input Voltage Range from 3 V to 17 V
  • Up to 500-mA Output Current
  • Adjustable Output Voltage from 0.9 V to 6 V
  • Fixed Output Voltage Versions
  • Seamless Power Save Mode Transition
  • Typically 17-µA Quiescent Current
  • Power Good Output
  • 100% Duty Cycle Mode
  • Short Circuit Protection
  • Over Temperature Protection
  • Pin to Pin Compatible with TPS62160 and TPS62125
  • Available in a 2-mm × 2-mm 8-Pin WSON Package
  • Create a Custom Design using the TPS62170 with the WEBENCH® Power Designer

The TPS6217x device family are easy to use synchronous step-down DC-DC converters optimized for applications with high power density. A high switching frequency of typically 2.25 MHz allows the use of small inductors and provides fast transient response as well as high output voltage accuracy by utilization of the DCS-Control™ topology.

With its wide operating input voltage range of 3 V to 17 V, the devices are ideally suited for systems powered from either a Li-Ion or other battery as well as from 12-V intermediate power rails. It supports up to 0.5-A continuous output current at output voltages between 0.9 V and 6 V (with 100% duty cycle mode).

Power sequencing is also possible by configuring the enable and open-drain power good pins.

In power save mode, the devices show quiescent current of about 17 µA from VIN. Power save mode, entered automatically and seamlessly if the load is small, maintains high efficiency over the entire load range. In shutdown mode, the device is turned off and shutdown current consumption is less than 2 µA.

The device, available in adjustable and fixed output voltage versions, is packaged in a 2-mm × 2-mm 8-pin WSON package (DSG).

The TPS6217x device family are easy to use synchronous step-down DC-DC converters optimized for applications with high power density. A high switching frequency of typically 2.25 MHz allows the use of small inductors and provides fast transient response as well as high output voltage accuracy by utilization of the DCS-Control™ topology.

With its wide operating input voltage range of 3 V to 17 V, the devices are ideally suited for systems powered from either a Li-Ion or other battery as well as from 12-V intermediate power rails. It supports up to 0.5-A continuous output current at output voltages between 0.9 V and 6 V (with 100% duty cycle mode).

Power sequencing is also possible by configuring the enable and open-drain power good pins.

In power save mode, the devices show quiescent current of about 17 µA from VIN. Power save mode, entered automatically and seamlessly if the load is small, maintains high efficiency over the entire load range. In shutdown mode, the device is turned off and shutdown current consumption is less than 2 µA.

The device, available in adjustable and fixed output voltage versions, is packaged in a 2-mm × 2-mm 8-pin WSON package (DSG).
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您可能會感興趣的類似產品

open-in-new 比較替代產品
針腳對針腳的功能與所比較的裝置相同。
TPS62162 現行 具 DCS-Control™ 的 3V-17V 1A 降壓轉換器 A pin-to-pin 1-A product with the same fixed-output voltage.
功能相同，但針腳輸出與所比較的裝置不同。
TPS62177 現行 具休眠模式的 28V、0.5A 降壓轉換器 This is a similar product with a wider input voltage range and the same fixed VOUT.

技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS6217x 3-V to 17-V, 0.5-A Step-Down Converters with DCS-Control™ datasheet (Rev. E) PDF | HTML 2017/5/10
應用說明 QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/6
應用說明 Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. D) PDF | HTML 2023/1/23
應用說明 Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 2022/5/23
應用說明 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018/12/11
類比設計期刊 Understanding 100% mode in low-power DC/DC converters 2018/6/22
類比設計期刊 Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017/10/24
類比設計期刊 Testing tips for applying external power to supply outputs without an input voltage 2016/10/24
類比設計期刊 Understanding frequency variation in the DCS-Control(TM) topology 2015/10/30
應用說明 Basic Calculation of a Buck Converter's Power Stage (Rev. B) PDF | HTML 2015/8/17
應用說明 Optimizing the TPS62130/40/50/60 Output Filter (Rev. A) 2015/7/15
類比設計期刊 Five steps to a great PCB layout for a step-down converter 2015/1/29
應用說明 Step-Down Converter With Input Overvoltage Protection 2014/9/4
類比設計期刊 High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 2013/7/25
應用說明 How to Measure the Control Loop of DCS-Control Devices (Rev. A) 2012/8/9
應用說明 Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012/1/13
應用說明 Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) 2012/1/12
應用說明 Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 2011/9/19
類比設計期刊 IQ: What it is, what it isn’t, and how to use it 2011/6/17

設計與開發

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開發板

TPS62170EVM-627 — 採用 2x2-mm、8 針腳 WSON 封裝且適用於 TPS62170 (0.5-A、同步、降壓轉換器) 的評估模組

The TPS62170EVM-627 (HPA627-002) uses the TPS62170 adjustable version and is set to a 3.3-Voutput. The EVM operates with full-rated performance with an input voltage between 3.7 V and 17 V. The TPS62170 is a 0.5-A, synchronous, step-down converter in a 2x2-mm, 8-pin WSON package. Both fixed and (...)

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模擬型號

TPS62172 PSpice Unencrypted Transient Model (Rev. B)

SLVM434A (32 KB) - PSpice 模型
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模擬型號

TPS62172 TINA-TI Transient Reference Design

SLVMA54.ZIP (44 KB) - TINA-TI 參考設計
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模擬型號

TPS62172 TINA-TI Transient Spice Model

SLVMA55.ZIP (54 KB) - TINA-TI Spice 模型
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參考設計

TIDA-00271 — 適用遠端攝影機和雷達模組的 ADAS 感測器互連參考設計基板

ADAS 感測器互連電路板適用於需要將攝影機、光達或雷達模組等遠端感測器連接至中央處理 ECU 的應用。電路板支援高達 3 個同軸和 1 個 LVDS 雙絞線資料輸入，以及 3 個 FMC 纜線和 1 個電路板至電路板連接器，以做為處理 ECU 的資料輸出。  透過同軸連接器（SMB 標準）連接的攝影機或其他感測器模組，直接透過互連板的同軸纜線（同軸電纜供電）供電。由於所有 IC 皆有獨立完整電源解決方案，且板載同軸纜線供電，因此單一汽車電池或類似寬電壓供應器可直接連接至 ADAS 感測器互連電路板上的電源接頭。板載 uC 和 LIN 介面可控制和配置互連電路板，以及隨插即用操作。

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WSON (DSG) 8 Ultra Librarian
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