TPS61261 - 具有 3.3 输出电压的小型低输入电压升压转换器

TPS61261是TI德州仪器公司的一款转换器（集成开关）产品，TPS61261是具有 3.3 输出电压的小型低输入电压升压转换器，本站介绍了TPS61261的封装应用图解、特点和优点、功能等，并给出了与TPS61261相关的TI元器件型号供参考。

TPS61261 - 具有 3.3 输出电压的小型低输入电压升压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

Input Voltage Range from 0.8 V to 4.0 V
Up to 95% Efficiency
100 mA Output Current at 3.3 Vout (VIN > 1 V)
Fixed and Adjustable Output Voltage Options from 1.8 V to 4.0 V
Programmable Average Output Current from 10 mA to 100 mA
Adjustable Output Current Limit for Smallest Inductor
Power Save Mode for Improved Efficiency at Low Output Power
29-µA Quiescent Current
Advanced Softstart
Quasi Fixed Frequency Operation at 2.5 MHz
Output Overvoltage Protection
Load Disconnect During Shutdown
Undervoltage Lockout
Available in a 2.00 × 2.00 mm, 6-Pin WSON Package

产品应用

All Single or Dual Cell Alkaline, NiCd or NiMH Battery Powered Products
High Output Impedance Battery (Coin Cells) Powered Products
Personal Medical Products
LED Driver
Laser Pointer
Wireless Headsets
Industrial Metering Equipment

产品说明

The TPS6126x devices provide a power supply solution for products powered by either single or dual cell alkaline, NiCd, or NiMH batteries. Its unique advanced softstart makes it also suitable for products powered by high output impedance battery types, like coin cells. Output currents can go as high as 100 mA while using a single cell alkaline battery, and discharge it down to 0.8 V or lower.

The boost converter is based on a quasi fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save Mode to ensure high efficiency over a wide load current range. The maximum average current in the switches is limited to a programmable value which can go as high as 700 mA. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. In addition, the average output current can be programmed as well. The converter then regulates the programmed output voltage or the programmed output current, which ever demands lower output power. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 6-pin WSON (DRV) package.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS61260	WSON (6)	2.00 mm × 2.00 mm
TPS61261	WSON (6)	2.00 mm × 2.00 mm

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