Nominal operating frequency of 1.2 MHz enables the use of small external inductors and capacitors and facilitates fast transient response. The internal soft-start results in a small inrush current and extends battery life. An internal power MOSFET with very low on-resistance (R DS(ON)) ensures high efficiency.
The APE1913-3 converter automatically switches from PWM to PFM during light load conditions to increase its efficiency. The device also provides protection functions such as under-voltage lockout, current limit and thermal shutdown. The APE1913TY5-HF-3 is available in a TSOT-23-5 package.