TC105 Overview
The TC105 is a step-down (Buck) switching controller that furnishes output currents of up to 1A (max) while delivering a typical efficiency of 92%. The TC105 normally operates in pulse width modulation mode (PWM), but automatically switches to pulse frequency modulation (PFM) at low output loads for greater efficiency. Oscillator frequency is 300kHz, allowing use of small (22H) inductors.
TC105 Key Features
- 57A (Typ) Supply Current
- 1A Output Current
- 0.5A Shutdown Mode
- 300kHz Switching Frequency for Small Inductor
- Programmable Soft-Start
- 92% Typical Efficiency
- Small Package: 5-Pin SOT-23A
