LM3673 Description
The LM3673 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7 V to 5.5 V. It provides up to 350-mA load current over the entire input voltage range. There are several different fixed voltage output options available, as well as an adjustable output voltage version ranging from 1.1 V to 3.3.
LM3673 Key Features
- 1 16-µA Typical Quiescent Current
- 350-mA Maximum Load Capability
- 2-MHz PWM Fixed Switching Frequency (Typical)
- Automatic PFM/PWM Mode Switching
- Available in Fixed and Adjustable Output Voltages
- Internal Synchronous Rectification for High
- Internal Soft Start
- 0.01-µA Typical Shutdown Current
- Operates From a Single Li-Ion Cell Battery
- Current Overload and Thermal Shutdown