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TPS62122 - 产品图解:
TPS62122-效率高达 96% 的 15V 75mA 降压转换器
TPS62122-转换器(集成开关)-DC/DC开关稳压器-电源管理
TPS62122-TPS6212x 15-V, 75-mA Highly Efficient Buck Converter
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TI产品 - TPS62122介绍
TPS62122 - 效率高达 96% 的 15V 75mA 降压转换器

TPS62122是TI公司的一款转换器(集成开关)产品,TPS62122是效率高达 96% 的 15V 75mA 降压转换器,本页介绍了TPS62122的产品说明、应用、特性等,并给出了与TPS62122相关的TI元器件型号供参考。

TPS62122 - 效率高达 96% 的 15V 75mA 降压转换器 - 转换器(集成开关) - DC/DC开关稳压器 - TI公司(Texas Instruments,德州仪器)

产品特性
  • Wide Input Voltage Range: 2 V to 15 V
  • Up to 96% Efficiency
  • Power Save Mode With 11-µA Quiescent Current
  • Output Current 75 mA
  • Output Voltage Range: 1.2 V to 5.5 V
  • Up to 800-kHz Switch Frequency
  • Synchronous Converter, No External Rectifier
  • Low Output Ripple Voltage
  • 100% Duty Cycle for Lowest Dropout
  • Small SOT 8-Pin (TPS62120) and 2-mm × 2-mm DFN 6-Pin (TPS62122) Package
  • Internal Soft Start
  • Power Good Open Drain Output (TPS62120)
  • Open-Drain Output for Output Discharge (TPS62120)
  • 2.5-V Rising and 1.85-V Falling UVLO Thresholds
产品应用
  • Low Power RF Applications
  • Ultra Low Power Microprocessors
  • Energy Harvesting
  • Industrial Measuring
产品说明

The TPS6212x device is a highly efficient synchronous step-down DC-DC converter optimized for low-power applications. The device supports up to 75-mA output current and allows the use of tiny external inductors and capacitors.

The wide operating input voltage range of 2 V to 15 V supports energy harvesting, battery powered and as well 9-V or 12-V line powered applications.

With its advanced hysteretic control scheme, the converter provides power save mode operation. At light loads the converter operates in pulse frequency modulation (PFM) mode and transitions automatically in pulse width modulation (PWM) mode at higher load currents. The power save mode maintains high efficiency over the entire load current range. The hysteretic control scheme is optimized for low output ripple voltage in PFM mode in order to reduce output noise to a minimum. The device consumes only 10-µA quiescent current from VIN in PFM mode operation.

In shutdown mode, the device is turned off.

An open-drain power good output is available in the TPS62120 and indicates once the output voltage is in regulation.

The TPS62120 has an additional SGND pin which is connected to GND during shutdown mode. This output can be used to discharge the output capacitor.

The TPS6212x operates over an free air temperature range of –40°C to 85°C. The TPS62120 is available in a small 8-pin SOT-23 package and the TPS62122 in a 2 mm × 2 mm 6-pin DFN package.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TPS62120SOT-23 (8)2.90 mm × 1.63 mm
TPS62122SON (6)2.00 mm × 2.00 mm
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