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DC/DC 轉換器

TPS62170

現行

採用 2x2 QFN 封裝且具備 DCS-Control 的 3–17V 0.5A 降壓轉換器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但針腳輸出與所比較的裝置不同。
TPS629206 現行 採用 SOT-583 封裝的 3V 至 17V、0.6A、低 IQ、同步降壓轉換器 Higher efficiency with lower IQ and improved Vref accuracy in a smaller package.

TPS62170

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) 6 Vout (min) (V) 0.9 Features Enable, Light Load Efficiency, Output discharge, Power good, Synchronous Rectification 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) 6 Vout (min) (V) 0.9 Features Enable, Light Load Efficiency, Output discharge, Power good, Synchronous Rectification 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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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。
TPS62160 現行 具 DCS-Control™ 的 3V-17V 1A 降壓轉換器 Pin-compatible product with higher output current (1 A).
功能相同，但針腳輸出與所比較的裝置不同。
TPS62175 現行 具休眠模式的 28V、0.5A 降壓轉換器 Higher input voltage range (up to 28 V).

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
選擇指南 Buck Converter Quick Reference Guide (Rev. B) 2021/4/8
技術文章 How to design an infrared thermometer quickly PDF | HTML 2020/4/7
類比設計期刊 Methods of output-voltage adjustment for DC/DC converters 2019/6/14
應用說明 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018/12/11
選擇指南 Power Management Guide 2018 (Rev. R) 2018/6/25
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
應用說明 Feedforward Capacitor to Improve Stability and Bandwidth of TPS621/821-Family (Rev. A) 2017/6/28
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 Low-Noise CMOS Camera Supply 2014/12/15
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
類比設計期刊 Design considerations for a resistive feedback divider in a DC/DC converter 2012/4/26
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 (...)

使用指南: PDF | HTML
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模擬型號

TPS62170 PSpice Unencrypted Transient Model (Rev. B)

SLVM432B.ZIP (32 KB) - PSpice 模型
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模擬型號

TPS62170 TINA-TI Transient Reference Design (Rev. A)

SLVM504A.ZIP (164 KB) - TINA-TI 參考設計
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模擬型號

TPS62170 TINA-TI Transient Spice Model (Rev. A)

SLVM503A.ZIP (52 KB) - TINA-TI Spice 模型
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計算工具

SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
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參考設計

TIDA-00548 — 適用於安全應用的 4-20mA 類比輸入模組參考設計

TIDA-00548 是一款具備隔離的雙通道 4 至 20mA 類比輸入參考設計，可用作功能安全可程式化邏輯控制器 (PLC) 的一部分。此參考設計透過一顆 32 位元高效能類比數位轉換器 (ADC) 輸出數位化的輸入值。採用 RM4x 雙核心 ARM® Cortex®-R4 架構的 CPU，具備 lockstep 技術與內建自我測試 (BIST)，可比對最多九組可選類比輸入訊號鏈路的轉換值。雙輸入架構搭配兩組獨立的負載電阻，支援冗餘測量單一路 4 至 20mA 電流迴路，或測量兩組獨立的電流迴路。Hercules™ RM 系列 ARM Cortex-R (...)
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參考設計

TIDEP-01008 — Jacinto™ ADAS 處理器上的多感測器平臺參考設計

D3 Engineering 為先進駕駛輔助系統 (ADAS) 推出的多感測器平台參考設計，可為合格的開發人員提供一個具備完整功能的 ADAS 應用測試與開發評估平台，主要用於汽車產業。  D3 也提供系統模組 (SOM) 解決方案，其中包含可搭配此參考設計使用的 ADAS 嵌入式處理器（例如 TDA3x）。

D3 提供的 DesignCore™ TDA3x 汽車入門套件

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