R1212D Description
R1212D Series PWM Step-up DC/DC Controller NO.EA-109-220608 OUTLINE The R1212D is a CMOS-based PWM step-up DC/DC controller with low supply current. Internally, the R1212D consists of an oscillator, a PWM parator circuit, a reference voltage unit, an error amplifier, a reference current unit, a protection circuit, and an under voltage lockout (UVLO) circuit. A low ripple, high efficiency stepup DC/DC converter can...
R1212D Key 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
- High Reference Voltage Accuracy
- UVLO Threshold level
- Typ.1.9 V/ 2.1 V/ 2.8 V by mask option
R1212D Applications
- Constant Voltage Power Source for portable equipment
- Constant Voltage Power Source for LCD and CCD