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DC/DC 轉換器

TLV62090

現行

採用 3x3mm QFN 封裝的 3A 高效降壓轉換器

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TPS62826 現行 採用 1.5-mm x 1.5-mm VSON-HR 封裝，具有 1% 準確度的 2.4-V-5.5-V 輸入、3-A 降壓轉換器 3-A step-down converter with 1% accuracy in 1.5-mm x 1.5-mm QFN.

TLV62090

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 2.5 Vout (max) (V) 5.5 Vout (min) (V) 0.8 Features Enable, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, UVLO fixed Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00002 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 2.5 Vout (max) (V) 5.5 Vout (min) (V) 0.8 Features Enable, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, UVLO fixed Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00002 Duty cycle (max) (%) 100
VQFN (RGT) 16 9 mm² (3 mm × 3 mm)
  • 2.5 V to 5.5 V Input Voltage Range
  • DCS-Control™
  • Up To 98% Efficiency
  • Power Save Mode
  • 20 µA Operating Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • 1.4 MHz Typical Switching Frequency
  • 0.8 V to VIN Adjustable Output Voltage
  • Output Discharge Function
  • Adjustable Softstart
  • Hiccup Short Circuit Protection
  • Output Voltage Tracking
  • Pin-to-Pin Compatible with TPS62090, TLV62095 and TPS62095
  • For Improved Feature Set, See TPS62090
  • Create a Custom Design using the TLV62090 with the WEBENCH® Power Designer
  • 2.5 V to 5.5 V Input Voltage Range
  • DCS-Control™
  • Up To 98% Efficiency
  • Power Save Mode
  • 20 µA Operating Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • 1.4 MHz Typical Switching Frequency
  • 0.8 V to VIN Adjustable Output Voltage
  • Output Discharge Function
  • Adjustable Softstart
  • Hiccup Short Circuit Protection
  • Output Voltage Tracking
  • Pin-to-Pin Compatible with TPS62090, TLV62095 and TPS62095
  • For Improved Feature Set, See TPS62090
  • Create a Custom Design using the TLV62090 with the WEBENCH® Power Designer

The TLV62090 device is a high frequency synchronous step-down converter optimized for small solution size, high efficiency and suitable for battery powered applications. To maximize efficiency, the converter operates in pulse width modulation (PWM) mode with a nominal switching frequency of 1.4 MHz and it automatically enters power save mode operation at light load currents. When used in distributed power supplies and point of load regulation, the device allows voltage tracking to other voltage rails and tolerates output capacitors ranging from 10 µF up to 150 µF and beyond. Using the DCS-Control topology, the device achieves excellent load transient performance and accurate output voltage regulation.

The output voltage start-up ramp is controlled by the softstart pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable (EN) and power good (PG) pins. In power save mode, the device operates with typically 20-µA quiescent current. Power save mode is entered automatically and seamlessly, maintaining high efficiency over the entire load current range.

The device is available in a 3 mm × 3 mm 16-pin VQFN (RGT) package.

The TLV62090 device is a high frequency synchronous step-down converter optimized for small solution size, high efficiency and suitable for battery powered applications. To maximize efficiency, the converter operates in pulse width modulation (PWM) mode with a nominal switching frequency of 1.4 MHz and it automatically enters power save mode operation at light load currents. When used in distributed power supplies and point of load regulation, the device allows voltage tracking to other voltage rails and tolerates output capacitors ranging from 10 µF up to 150 µF and beyond. Using the DCS-Control topology, the device achieves excellent load transient performance and accurate output voltage regulation.

The output voltage start-up ramp is controlled by the softstart pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable (EN) and power good (PG) pins. In power save mode, the device operates with typically 20-µA quiescent current. Power save mode is entered automatically and seamlessly, maintaining high efficiency over the entire load current range.

The device is available in a 3 mm × 3 mm 16-pin VQFN (RGT) package.
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TPS62823 現行 採用 1.5-mm x 2-mm VSON-HR 封裝，具有 1% 準確度的 2.4-V 至 5.5-V 輸入、3-A 降壓轉換器 3-A step-down converter with 1% accuracy in QFN.

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 TLV62090 3A High Efficiency Synchronous Step-Down Converter with DCS-Control™ datasheet (Rev. F) PDF | HTML 2017/1/19
應用說明 QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/6
應用說明 Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 2022/5/23
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
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
類比設計期刊 Five steps to a great PCB layout for a step-down converter 2015/1/29
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 Optimizing the TLV62090 Output Filter 2012/5/11
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 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

TLV62090EVM-125 — TLV62090EVM-125 評估模組

The TLV62090EVM-125 is a fully assembled and tested circuit for evaluating the TLV62090. The TLV62090 is a step-down converter that operates with an input voltage between 2.5 V and 6 Vdc, an output voltage of 1.8 V using external resistors, and can deliver up to 3000 mA of continuous current. The (...)

使用指南: PDF
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模擬型號

TLV62090 PSpice Unencrypted Transient Model (Rev. A)

SLVM577A.ZIP (24 KB) - PSpice 模型
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模擬型號

TLV62090 TINA-TI Transient Reference Design

SLVM735.TSC (175 KB) - TINA-TI 參考設計
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模擬型號

TLV62090 TINA-TI Transient Spice Model

SLVM736.ZIP (65 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

TIDC-CC3100MODBOOST — SimpleLink™ Wi-Fi® CC3100 模組 BoosterPack

使用 CC3100 模組 BoosterPack (CC3100MODBOOST)，將 Wi-Fi® 加入適合物聯網 (IoT) 應用的任何低成本、低功耗微控制器 (MCU)，而此 BoosterPack 搭載 CC3100 模組 (CC3100MOD)。此 CC3100MODBOOST 評估電路板包含輕鬆建立 IoT 解決方案所需的一切功能：安全性、快速連線、雲端支援、支援公開文件、E2E 支援論壇及其他功能。其整合了 Wi-Fi 與網際網路的所有通訊協定，大幅降低主機 MCU 軟體需求。CC3100MOD 解決方案透過內建安全通訊協定，提供穩健且簡單的安全體驗。

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VQFN (RGT) 16 Ultra Librarian
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