Description
Pin Description Pin No 1 2 3 4 5 6 7 8
Symbol EXT GND DTC
DELAY VFB
VREFOUT AMPOUT
VIN
Description External FET Drive Pin (CMOS Output) Ground Pin Pin for Setting Maximum Duty Cycle and Soft start time Pin for External Capacitor (for Setting Output Delay of Protection) Feedback Pin for monitoring
Features
- Input Voltage Range 2.2 V to 5.5 V.
- Built-in Latch-type Protection Function (Output Delay Time can be set with an external capacitor).
- Two Options of Basic Oscillator Frequency 700 kHz, 1.4 MHz, 300 kHz.
- Maximum Duty Cycle/Soft-start time Adjustable with external capacitors
(If internal limit is set by version, Typ. 90% or Typ. 91.5%).
- High Reference Voltage Accuracy ±1.5%.
- UVLO Threshold level Typ.1.9 V/ 2.1 V/ 2.8 V by mask option.
R1212D Datasheet
