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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS62173

現行

採用 2x2 QFN 封裝的 3–17V 0.5A 降壓轉換器

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功能與所比較的裝置相似
TPS629206 現行 採用 SOT-583 封裝的 3-V 至 17-V、0.6-A、低 IQ 同步降壓轉換器 Improved efficiency, smaller size and lower IQ.

TPS62173

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 3 Vin (max) (V) 17 Switching frequency (min) (kHz) 2250 Switching frequency (max) (kHz) 2250 Features Enable, Light Load Efficiency, Output discharge, Power good, Synchronous Rectification, Tracking, Voltage Margining Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 5 Vout (max) (V) 5 Iq (typ) (µA) 17 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 3 Vin (max) (V) 17 Switching frequency (min) (kHz) 2250 Switching frequency (max) (kHz) 2250 Features Enable, Light Load Efficiency, Output discharge, Power good, Synchronous Rectification, Tracking, Voltage Margining Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 5 Vout (max) (V) 5 Iq (typ) (µA) 17 Duty cycle (max) (%) 100
WSON (DSG) 8 4 mm² 2 x 2
  • 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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引腳對引腳且具備與所比較裝置相同的功能
TPS62163 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.
TPS62170 現行 採用 2x2 QFN 封裝且具備 DCS-Control 的 3–17V 0.5A 降壓式轉換器 This product has an adjustable output voltage.

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類型 標題 日期
* Data sheet TPS6217x 3-V to 17-V, 0.5-A Step-Down Converters with DCS-Control™ datasheet (Rev. E) PDF | HTML 2017年 5月 10日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Application note Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. D) PDF | HTML 2023年 1月 23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 brief Supercap last gasp failsafe power for RF comunications in E-Meters 2019年 1月 27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
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
Application note Optimizing the TPS62130/40/50/60 Output Filter (Rev. A) 2015年 7月 15日
Analog Design Journal Five steps to a great PCB layout for a step-down converter 2015年 1月 29日
Application note Step-Down Converter With Input Overvoltage Protection 2014年 9月 4日
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 2013年 7月 25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

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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子卡

AUDK2G — 66AK2Gx (K2G) 音訊子卡

The K2G audio daughter card is designed to work in conjunction with the K2G general-purpose EVM (EVMK2G) or EVMK2GX and the EVMK2G or EVMK2GX is required for audio daughter card operation.  The daughter card allows users to develop multichannel audio applications such as A/V receivers, (...)

使用指南: PDF
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模擬型號

TPS62173 PSpice Unencrypted Transient Model (Rev. B)

SLVM435B.ZIP (46 KB) - PSpice Model
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模擬型號

TPS62173 TINA-TI Transient Reference Design

SLVMA57.ZIP (163 KB) - TINA-TI Reference Design
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模擬型號

TPS62173 TINA-TI Transient Spice Model

SLVMA56.ZIP (52 KB) - TINA-TI Spice Model
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參考設計

PMP30528 — 適用於電表的超級電容器備用電源供應參考設計

This reference design automatically provides back-up voltages to an E-Meter during a power interruption. While the input voltage is between 10 V to 12 V, two buck controllers (TPS62147, TPS62173) generate 3.9 V at 2 A and 5 V at 150 mA. An optional synchronous boost generates 3.3 V at 50 mA. A (...)
Test report: PDF
電路圖: PDF
參考設計

PMP22165 — 適用於 Xilinx Versal 適應性計算加速平台 (ACAP) 參考設計的電源

此參考設計因應 Xilinx Versal 適應性計算加速平台 (ACAP) 的需求，包含一個系統軌道的電源管理積體電路 (PMIC)，加上一個多相控制器和功率級，用以支援更高電流的處理器負載。關鍵輸出的板載動態負載允許進行 Xilinx 嚴苛的電源需求測試。PMP22165 與 TPS53681 EVM 是經過測試的解決方案，其元件性能符合 Versal 最常見用例一和三的處理器需求。
Test report: PDF
電路圖: PDF
參考設計

TIDA-050020 — 適用於 Xilinx® Virtex Ultrascale+™ FPGA 的 PMBus™ 電壓穩壓器參考設計

This reference design uses the TPS53681 multiphase controller and CSD95490Q5MC smart power stages to implement a high-performance design suitable for powering the 0.85-V, 200-A, VCCINT rail of a Xilinx™ Ultrascale+™ FPGA. The secondary output of the controller can then be used to power (...)
Design guide: PDF
電路圖: PDF
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