WMSIC Electronic Components

TECH PUBLIC TPS61040DBVR-TP TPS61040DBVR

ModelTPS61040DBVR-TP
PackageSOT-23-5
BrandTECH PUBLIC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TECH PUBLIC TPS61040DBVR-TP
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
TPS61040DBVR-TP
Electronic Component
1
Package
SOT-23-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.029g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264915688
Operating Temperature
40℃~+125℃@(TJ)
Operating Voltage
2.7V~5.5V
Switching Frequency
1MHz
Electronic Component
Electronic Component
Output Current
850mA

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

TPS61040DBVR-TP 升压型DC-DC转换器产品概述

TPS61040DBVR-TP是台舟电子(TECH PUBLIC)推出的一款异步升压式DC-DC转换器,专为低输入电压、低功耗、小型化电子设备设计,具备宽输入范围、高频开关、宽温工作等核心特性,可灵活适配便携电子、物联网节点、工业传感器等多场景供电需求。

一、核心功能与典型应用

该芯片采用升压(Boost)拓扑结构,可将2.7V~5.5V的低输入电压升压至可调输出电压,满足低功耗设备的供电要求。典型应用场景包括:

  1. 便携电子:智能手环、蓝牙耳机、便携蓝牙音箱的电池升压(如2节AA电池3V→5V);
  2. 物联网节点:低功耗MCU(STM32L系列)、温湿度传感器(SHT30)的供电,待机低功耗延长电池寿命;
  3. 工业场景:户外环境监测传感器(土壤湿度、光照)、车载辅助电子的宽温供电;
  4. 消费电子:小型LED背光驱动、手持游戏机的辅助升压供电。

二、关键参数与性能优势

2.1 输入输出特性

  • 输入范围:2.7V~5.5V,覆盖纽扣电池(3V)、干电池(2节AA=3V、3节AA=4.5V)、单节锂电池(4.2V)等常见电池;
  • 输出类型:可调,通过外部电阻分压可设置输出电压(如3.3V、5V、9V),灵活性强。

2.2 低功耗设计

  • 静态电流(Iq):仅200μA,待机/轻负载下功耗极低,纽扣电池供电的传感器节点可工作数月;
  • 内置开关管:无需外置高压开关管,减少BOM成本与占板面积。

2.3 高频与小型化

  • 开关频率:1MHz,相比500kHz以下芯片,可选用10μH小型电感、10μF电容,占板面积缩小30%以上;
  • 封装:SOT-23-5超小封装(2.9mm×1.6mm),适配高密度PCB设计。

2.4 宽温可靠性

  • 工作温度:-40℃~+125℃(结温TJ),覆盖工业级要求,可在北方冬季户外、高温车间稳定工作。

三、拓扑与整流设计

采用异步升压拓扑,内置N沟道功率开关管,外置续流二极管(如1N5819)实现电流续流。虽无同步整流,但轻负载效率≥85%,重负载效率≈90%,平衡了成本与性能,适合效率要求非极致但需控制BOM的场景。

四、应用设计注意事项

  1. 电感选择:建议10μH~22μH小型功率电感(如CDRH3D16-10μH),降低高频损耗;
  2. 电容匹配:输入10μF陶瓷电容,输出22μF陶瓷/电解电容,减少纹波;
  3. 输出设置:通过R1(上拉)、R2(下拉)分压,公式Vout=1.2V×(1+R1/R2);
  4. 布局优化:电感靠近SW引脚,输入输出电容靠近芯片,减少寄生电感与噪声。

五、总结

TPS61040DBVR-TP凭借低静态电流、高频小型化、宽温工作、小封装等优势,成为低功耗升压场景的高性价比选择。其适配多种电池类型,输出可调灵活,可满足便携电子、物联网、工业传感器等领域的供电需求,是小型化低功耗设备的理想DC-DC转换器。

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