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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS62730

現行

用於超低功耗無線應用且具備旁路模式的降壓式轉換器

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產品規格表

TPS62730

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 85 Topology Buck Type Converter Iout (max) (A) 0.1 Vin (min) (V) 1.9 Vin (max) (V) 3.9 Switching frequency (min) (kHz) 3000 Switching frequency (max) (kHz) 3000 Features Enable, Light load efficiency, Synchronous Rectification Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 2.1 Vout (max) (V) 2.1 Iq (typ) (µA) 25 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.1 Vin (min) (V) 1.9 Vin (max) (V) 3.9 Switching frequency (min) (kHz) 3000 Switching frequency (max) (kHz) 3000 Features Enable, Light load efficiency, Synchronous Rectification Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 2.1 Vout (max) (V) 2.1 Iq (typ) (µA) 25 Duty cycle (max) (%) 100
USON (DRY) 6 1.45 mm² 1.45 x 1
  • Input Voltage Range VIN From 1.9 V to 3.9 V
  • Typ. 30-nA Ultra Low-Power Bypass Mode
  • Typ. 25-µA DC-DC Quiescent Current
  • Internal Feedback Divider Disconnect
  • Typical 2.1-Ω: Bypass Switch Between VIN and VOUT
  • Automatic Transition from DC-DC to Bypass Mode
  • Up to 3-MHz Switch Frequency
  • Up to 95% DC-DC Efficiency
  • Open-Drain Status Output STAT
  • Output Peak Current up to 100 mA
  • Fixed Output Voltages 1.9 V, 2.05 V, 2.1 V, 2.3 V
  • Small External Output Filter Components 2.2 µH and 2.2 µF
  • Optimized For Low Output Ripple Voltage
  • Small 1 × 1.5 × 0.6-mm3 USON Package
  • 12-mm2 Minimum Solution Size
  • Input Voltage Range VIN From 1.9 V to 3.9 V
  • Typ. 30-nA Ultra Low-Power Bypass Mode
  • Typ. 25-µA DC-DC Quiescent Current
  • Internal Feedback Divider Disconnect
  • Typical 2.1-Ω: Bypass Switch Between VIN and VOUT
  • Automatic Transition from DC-DC to Bypass Mode
  • Up to 3-MHz Switch Frequency
  • Up to 95% DC-DC Efficiency
  • Open-Drain Status Output STAT
  • Output Peak Current up to 100 mA
  • Fixed Output Voltages 1.9 V, 2.05 V, 2.1 V, 2.3 V
  • Small External Output Filter Components 2.2 µH and 2.2 µF
  • Optimized For Low Output Ripple Voltage
  • Small 1 × 1.5 × 0.6-mm3 USON Package
  • 12-mm2 Minimum Solution Size

The TPS62730 is a high frequency synchronous step-down DC-DC converter optimized for ultra low-power wireless applications. The device is optimized to supply TI’s Low-Power Wireless sub 1-GHz and 2.4-GHz RF transceivers and System-On-Chip (SoC) solutions. The TPS62730 reduces the current consumption drawn from the battery during TX and RX mode by a high efficient step-down voltage conversion. The device provides an output current of up to 100 mA and allows the use of tiny and low-cost chip inductors and capacitors. With an input voltage range of 1.9 V to 3.9 V, the device supports Li-primary battery chemistries such as Li-SOCl2, Li-SO2, Li-MnO2, and also two cell alkaline batteries.

The TPS62730 features an Ultra Low-Power bypass mode with typical 30-nA current consumption to support sleep and low power modes of TI’s CC2540 Bluetooth Low Energy and CC430 SoC solutions. In this bypass mode, the output capacitor of the DC-DC converter is connected through an integrated typical 2.1-Ω bypass switch to the battery.

In DC-DC operation mode the device provides a fixed output voltage to the system. With a switch frequency up to 3 MHz, the TPS62730 features low output ripple voltage and low noise even with a small 2.2-µF output capacitor. The automatic transition into bypass mode during DC-DC operation prevents an increase of output ripple voltage and noise once the DC-DC converter operates close to 100% duty cycle. The device automatically enters bypass mode once the battery voltage falls below the transition threshold VIT BYP . The TPS62730 is available in a 1 × 1.5-mm2 6-pin USON package.

The TPS62730 is a high frequency synchronous step-down DC-DC converter optimized for ultra low-power wireless applications. The device is optimized to supply TI’s Low-Power Wireless sub 1-GHz and 2.4-GHz RF transceivers and System-On-Chip (SoC) solutions. The TPS62730 reduces the current consumption drawn from the battery during TX and RX mode by a high efficient step-down voltage conversion. The device provides an output current of up to 100 mA and allows the use of tiny and low-cost chip inductors and capacitors. With an input voltage range of 1.9 V to 3.9 V, the device supports Li-primary battery chemistries such as Li-SOCl2, Li-SO2, Li-MnO2, and also two cell alkaline batteries.

The TPS62730 features an Ultra Low-Power bypass mode with typical 30-nA current consumption to support sleep and low power modes of TI’s CC2540 Bluetooth Low Energy and CC430 SoC solutions. In this bypass mode, the output capacitor of the DC-DC converter is connected through an integrated typical 2.1-Ω bypass switch to the battery.

In DC-DC operation mode the device provides a fixed output voltage to the system. With a switch frequency up to 3 MHz, the TPS62730 features low output ripple voltage and low noise even with a small 2.2-µF output capacitor. The automatic transition into bypass mode during DC-DC operation prevents an increase of output ripple voltage and noise once the DC-DC converter operates close to 100% duty cycle. The device automatically enters bypass mode once the battery voltage falls below the transition threshold VIT BYP . The TPS62730 is available in a 1 × 1.5-mm2 6-pin USON package.
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類型 標題 日期
* Data sheet TPS6273x Step-Down Converter With Bypass Mode for Ultra Low-Power Wireless Applications datasheet (Rev. D) PDF | HTML 2014年 12月 15日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6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 note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25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
Analog Design Journal Five steps to a great PCB layout for a step-down converter 2015年 1月 29日
White paper Complete Wireless M-Bus Solution (Rev. B) 2014年 11月 5日
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 2013年 7月 25日
User guide Step down converter with bypass mode (Rev. A) 2012年 8月 21日
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) 2012年 8月 9日
Application note AN097 - Current Savings in CC254x Using the TPS62730 (Rev. B) 2012年 2月 8日
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012年 1月 13日
More literature TPS62730 Product Summary 2011年 10月 5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

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

支援軟體

SENSORTAG-SW — SimpleLink™ SensorTag 軟體

The SensorTag includes an open hardware and software reference design for low cost and low power wireless IoT applications. The SensorTag is supplied with complete source code with everything you need to customize it for your application as well as source code examples for mobile apps.
使用指南: PDF
View Options
模擬型號

TPS62730 PSpice Unencrypted Transient Model (Rev. A)

SLVM229A.ZIP (54 KB) - PSpice Model
下載
模擬型號

TPS62730 TINA-TI Transient Reference Design

SLVM280.TSC (328 KB) - TINA-TI Reference Design
下載
模擬型號

TPS62730 TINA-TI Transient Spice Model

SLVM281.ZIP (35 KB) - TINA-TI Spice Model
下載
參考設計

TIDC-MULTIBAND-WMBUS — 具有區段 LCD 的多頻段 (169、433 和 868MHz) wM-Bus RF 子系統參考設計

The TIDC-MULTIBAND-WMBUS single PCB covers all three wM-Bus frequency bands with only a few component value changes. It is a very low-power and ETSI Cat. 1  Receiver capable RF subsystem for wM-Bus 169MHz and 433 systems without SAW filter and TCXO. Ultralow-power MSP430 with always-on LCD (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDM-BLE-KEYBOARD — Bluetooth 低耗能鍵盤參考設計

This solution implements a keyboard for any operation system which supports HOGP (Hid Over GATT Profile). It is designed to have ultra low-power consumption for a substantial time working with Bluetooth Low Energy technology. CC2541 and an ultra-low-power MSP MCU are used in this design to handle (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDC-WMBUS-169MHZ — ETSI 類別適用於智慧型瓦斯表和水表，支援單個接收器的 wM-Bus 169 MHz 射頻子系統

This reference design is a very low-power, ETSI Cat. 1 receiver capable RF subsystem for wM-Bus enabled smart gas and water meters at 169 MHz. It provides market-leading blocking, selectivity, and RX sensitivity numbers for all wM-Bus N-modes as per EN13757-4:2013 and their respective variants, (...)
Design guide: PDF
電路圖: PDF
參考設計

CC2541-SENSORTAG-IBEACON-RD — 搭載 iBeacon™ 技術的 SensorTag

The SimpleLink Bluetooth® Smart SensorTag removes the barriers to entry for smartphone app developers who want to take advantage of the growing number of Bluetooth® Smart-enabled smartphones and tablets. iBeacon Technology is a very low cost method for providing mobile phones with (...)
Design guide: PDF
電路圖: PDF
參考設計

CC2530ZLLRC-RD — ZLL 遠端控制參考設計

The Texas Instruments ZLLRC Reference Design allows simple and direct control of lamps on a ZigBee Light Link network. It is intended to control a sub-group of lamps on the network, such as the lamps in a room in your house. It creates its own group consisting of the lamps it has touch linked with. (...)
使用指南: PDF
電路圖: PDF
參考設計

CC2541SENSORTAG-RD — CC2541 SensorTag 參考設計

Bluetooth® 低耗能 SensorTag 經設計可將 Bluetooth 應用程式開發的設計時間從數月縮短至數小時。SensorTag 是首部著重感測器應用的 Bluetooth 低耗能開發套件，也是唯一鎖定智慧手機應用程式開發人員的套件。

在配備可下載的 SensorTag App 且無需軟硬體專業知識後，本套件可為欲利用逐漸增加 Bluetooth 低耗能智慧手機和平板電腦的智慧手機應用程式開發人員消除了入門的障礙。

使用指南: PDF
電路圖: PDF
參考設計

CC2541KEYFOB-RD — CC2541 鑰匙扣參考設計

The Bluetooth Smart Keyfob is a small-form factor, coin-cell powered mobile accessory with buttons, buzzer, LEDs and accelerometer, demonstrating the use of several of the BLE GATT service profiles, like the  proximity and battery service profiles.
電路圖: PDF
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