TPS62125 - 具有可调节启用阈值和磁滞作用的 3V 至 17V、250mA 降压转换器

TPS62125是TI德州仪器公司的一款转换器（集成开关）产品，TPS62125是具有可调节启用阈值和磁滞作用的 3V 至 17V、250mA 降压转换器，本站介绍了TPS62125的封装应用图解、特点和优点、功能等，并给出了与TPS62125相关的TI元器件型号供参考。

TPS62125 - 具有可调节启用阈值和磁滞作用的 3V 至 17V、250mA 降压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

Wide Input Voltage Range 3 V to 17 V
Input Supply Voltage Supervisor (SVS) With Adjustable Threshold and Hysteresis Consuming Typical 6-µA Quiescent Current
Wide Output Voltage Range 1.2 V to 10 V
Typical 13-µA Quiescent Current
350-nA Typical Shutdown Current
Seamless Power Save Mode Transition
DCS-Control™ Scheme
Low Output Ripple Voltage
Up to 1-MHz Switching Frequency
Highest Efficiency over Wide VIN and VOUT Range
Pin to Pin Compatible with TPS62160/70
100% Duty Cycle Mode
Power Good Open Drain Output
Output Discharge Function
Small 2-mm × 2-mm 8-pin WSON Package

产品应用

Embedded Processing
4-Cell Alkaline, 1- to 4-Cell Li-Ion Battery-Powered Applications
9-V to 15-V Standby Power Supply
Energy Harvesting
Inverter (Negative VOUT)

产品说明

The TPS62125 device is a high-efficiency synchronous step-down converter optimized for low and ultralow power applications providing up to 300-mA output current. The wide input voltage range of 3 V to 17 V supports 4-cell alkaline and 1- to 4-cell Li-Ion batteries in series configuration as well as 9-V to 15-V powered applications. The device includes a precise low-power enable comparator which can be used as an input supply voltage supervisor (SVS) to address system specific power-up and power-down requirements. The enable comparator consumes only 6-µA quiescent current and features an accurate threshold of 1.2 V typical as well as an adjustable hysteresis. With this feature, the converter can generate a power supply rail by extracting energy from a storage capacitor fed from high impedance sources such as solar panels or current loops. With its DCS-Control scheme the converter provides power-save mode operation to maintain highest efficiency over the entire load current range. At light loads the converter operates in pulse frequency modulation (PFM) mode and transitions seamlessly and automatically in pulse width modulation (PWM) mode at higher load currents. The DCS-Control™ scheme is optimized for low-output ripple voltage in PFM mode in order to reduce output noise to a minimum and features excellent AC load regulation. An open-drain power good output indicates once the output voltage is in regulation.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS62125	WSON (8)	2.00 mm × 2.00 mm

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