TPS40222 - 采用 3mm SON 封装的 1.6A 1.25MHz 降压转换器

TPS40222是TI德州仪器公司的一款转换器（集成开关）产品，TPS40222是采用 3mm SON 封装的 1.6A 1.25MHz 降压转换器，本站介绍了TPS40222的封装应用图解、特点和优点、功能等，并给出了与TPS40222相关的TI元器件型号供参考。

TPS40222 - 采用 3mm SON 封装的 1.6A 1.25MHz 降压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS40222 is a fixed-frequency, current-mode, non-synchronous buck converter optimized for applications powered by a 5-V distributed source. With internally determined operating frequency, soft-start time, and control loop compensation, the TPS40222 provides many features with a minimum of external components.

The TPS40222 operates at 1.25 MHz and supports up to 1.6-A output loads. The output voltage can be programmed to as low as 0.8 V. The TPS40222 utilizes pulse-by-pulse current limit as well as frequency foldback to protect the converter during a catastrophic short circuited output condition.

产品特性

Input Voltage Range 4.5 VDC to 8 VDC
Output Voltage (0.8 V to 90% VIN)
0 A to 1.6 A Current Capability
Fixed 1.25-MHz Switching Frequency
Reference 0.8 V ±1%
Internal 250 m N-Channel MOSFET Switch
Current Mode Control with Internal Slope Compensation
Internal Soft-Start
Internal Loop Compensation
Short Circuit Protection
Thermal Shutdown
High Efficiency Up to 92%
Small 3 mm × 3 mm SON Package
APPLICATIONS
- Disk Drives
- Set Top Box
- Point of Load Power
- ASIC Power Supplies

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