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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS62801

現行

採用 0.7 mm x 1.05 mm 晶片級封裝的 1.75 V 至 5.5 V 輸入、1 A 超低 IQ 降壓轉換器

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產品規格表

TPS62801

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) 1 Vin (min) (V) 1.75 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 4000 Switching frequency (max) (kHz) 4000 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Load Disconnect, Output discharge, Over Current Protection, Synchronous Rectification, UVLO Fixed, UVLO fixed Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 0.8 Vout (max) (V) 1.55 Iq (typ) (µA) 2.3 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 1.75 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 4000 Switching frequency (max) (kHz) 4000 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Load Disconnect, Output discharge, Over Current Protection, Synchronous Rectification, UVLO Fixed, UVLO fixed Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 0.8 Vout (max) (V) 1.55 Iq (typ) (µA) 2.3 Duty cycle (max) (%) 100
DSBGA (YKA) 6 0.735 mm² 1.05 x 0.7
  • 1.75V to 5.5V input voltage range
  • 2.3µA operating quiescent current
  • Up to 4MHz switching frequency
  • 0.6A or 1A output current
  • 1% output voltage accuracy
  • Selectable power save and forced PWM mode
  • R2D converter for flexible VOUT setting
  • 16 selectable and one fixed output voltages
    • TPS62800 (4MHz): 0.4V to 0.775V
    • TPS62801 (4MHz): 0.8V to 1.55V
    • TPS62802 (4MHz): 1.8V to 3.3V
    • TPS62806 (1.5MHz): 0.4V to 0.775V
    • TPS62807 (1.5MHz): 0.8V to 1.55V
    • TPS62808 (1.5MHz): 1.8V to 3.3V
  • Smart enable pin
  • Optimized pinout to support 0201 components
  • DCS-Control topology
  • Output discharge
  • 100% duty cycle operation
  • Tiny 6-pin, 0.35mm pitch WCSP package
  • Supports < 0.6mm design height
  • Supports < 5mm2 design size
  • Create a custom design using the:
  • 1.75V to 5.5V input voltage range
  • 2.3µA operating quiescent current
  • Up to 4MHz switching frequency
  • 0.6A or 1A output current
  • 1% output voltage accuracy
  • Selectable power save and forced PWM mode
  • R2D converter for flexible VOUT setting
  • 16 selectable and one fixed output voltages
    • TPS62800 (4MHz): 0.4V to 0.775V
    • TPS62801 (4MHz): 0.8V to 1.55V
    • TPS62802 (4MHz): 1.8V to 3.3V
    • TPS62806 (1.5MHz): 0.4V to 0.775V
    • TPS62807 (1.5MHz): 0.8V to 1.55V
    • TPS62808 (1.5MHz): 1.8V to 3.3V
  • Smart enable pin
  • Optimized pinout to support 0201 components
  • DCS-Control topology
  • Output discharge
  • 100% duty cycle operation
  • Tiny 6-pin, 0.35mm pitch WCSP package
  • Supports < 0.6mm design height
  • Supports < 5mm2 design size
  • Create a custom design using the:

The TPS6280x device family is a step-down converter with 2.3µA typical quiescent current featuring the highest efficiency and smallest design size. TI’s DCS-Control topology enables the device to operate with tiny inductors and capacitors with a switching frequency up to 4MHz. At light load conditions, the device seamlessly enters power save mode to reduce switching cycles and maintain high efficiency.

Connecting the VSEL/MODE pin to GND selects a fixed output voltage. With only one external resistor connected to VSEL/MODE pin, 16 internally set output voltages can be selected. An integrated R2D (resistor-to-digital) converter reads out the external resistor and sets the output voltage. The same device part number can be used for different applications and voltage rails just by changing a single resistor. Furthermore, the internally set output voltage provides better accuracy compared to a traditional external resistor divider network. After the device has started up, the DC/DC converter enters forced PWM mode by applying a high level at the VSEL/MODE pin. In this operating mode, the device runs at a typical 4MHz or 1.5MHz switching frequency, enabling lowest output voltage ripple and highest efficiency. The TPS6280x device series comes in a tiny 6-pin WCSP package with 0.35mm pitch.

The TPS6280x device family is a step-down converter with 2.3µA typical quiescent current featuring the highest efficiency and smallest design size. TI’s DCS-Control topology enables the device to operate with tiny inductors and capacitors with a switching frequency up to 4MHz. At light load conditions, the device seamlessly enters power save mode to reduce switching cycles and maintain high efficiency.

Connecting the VSEL/MODE pin to GND selects a fixed output voltage. With only one external resistor connected to VSEL/MODE pin, 16 internally set output voltages can be selected. An integrated R2D (resistor-to-digital) converter reads out the external resistor and sets the output voltage. The same device part number can be used for different applications and voltage rails just by changing a single resistor. Furthermore, the internally set output voltage provides better accuracy compared to a traditional external resistor divider network. After the device has started up, the DC/DC converter enters forced PWM mode by applying a high level at the VSEL/MODE pin. In this operating mode, the device runs at a typical 4MHz or 1.5MHz switching frequency, enabling lowest output voltage ripple and highest efficiency. The TPS6280x device series comes in a tiny 6-pin WCSP package with 0.35mm pitch.
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引腳對引腳且具備與所比較裝置相同的功能
TPS62800 現行 採用 0.7 mm x 1.05 mm 晶片級封裝的 1.75 V 至 5.5 V 輸入、1 A 超低 IQ 降壓轉換器 Pin-compatible converter with different output voltage range (0.4V - 0.775V).
TPS62802 現行 採用 0.7 mm x 1.05 mm 晶片級封裝的 1.75 V 至 5.5 V 輸入、1 A 超低 IQ 降壓轉換器 Pin-compatible converter with different output voltage range (1.8V - 3.3V).
TPS62807 現行 採用 0.7mm x 1.05mm WCSP 的 1.75V 至 5.5V 輸入、600mA 超低 IQ 降壓轉換器 Pin-compatible converter with lower output current (0.6 A) and switching frequency (1.5 MHz).
功能相同，但引腳輸出與所比較的裝置不同
TPS62861 現行 具有 I2C/VSEL 介面的 1.75 V 至 5.5 V 輸入、1 A 超低 IQ 降壓轉換器 Converter with I2C feature and 0.4-V to 1.98-V output voltage range.

技術文件

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類型 標題 日期
* Data sheet TPS6280x 1.75V to 5.5V, 0.6A/1A, 2.3µA IQ Step-Down Converter 6-Pin, 0.35mm Pitch WCSP Package datasheet (Rev. G) PDF | HTML 2024年 6月 6日
Application note Intro to Multi-Function Pins and Their Applications in TI Step-Down Converters (Rev. A) PDF | HTML 2022年 11月 17日
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 2022年 5月 23日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 2021年 3月 22日
White paper Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 2019年 10月 14日
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
EVM User's guide TPS62800EVM-892 Evaluation Module (Rev. B) 2018年 8月 22日
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018年 6月 22日
Technical article Design a 3A power supply smaller than a 1608-size resistor PDF | HTML 2018年 1月 16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
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
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
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

TPS62800EVM-892 — 具有 2.3-uA IQ 的微型 0.35 mm 間距 1-A 降壓轉換器評估模組 (3 電路)

The TPS62800EVM-892 evaluation module (EVM) facilitates the evaluation of the TPS62800-1-2 family of 1 A, step-down converters with 2.3-µA IQ in tiny 1.05-mm by 0.7-mm WCSP packages with 0.35-mm pitch. The EVM contains 3 separate circuits to create output voltages between 0.4 V and 3.3 V from (...)

使用指南: PDF
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模擬型號

TPS62801 PSpice Unencrypted Transient Model (Rev. B)

SLVMCJ4B.ZIP (83 KB) - PSpice Model
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Gerber 檔案

PWR892 Gerber

SLVC721.ZIP (376 KB)
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參考設計

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Power over Ethernet (PoE) offers an easy and reliable solution to combine power and data in one cable with high data rate and long reach. This combination makes PoE ideal for small devices such as machine vision cameras and vision sensors. This reference design implements a complete PoE powered (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01566 — 適用於穿戴式裝置和 IoT 的輕載效率、低雜訊電源供應參考設計

This reference design demonstrates an ultra-small power supply solution (8.5 mm2 total) for an efficient and low-noise rail in portable personal electronic devices, such as wearables, smart watches, smartphones, headsets, headphones, earbuds, and camera modules. A low dropout (LDO) linear (...)
Design guide: PDF
電路圖: PDF
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