The R1213K Series are low supply current, CMOS-based PWM step-up DC/DC converters. R1213K includes a soft start circuit, an under-voltage lockout circuit (UVLO), a thermal shutdown circuit, and a latch protection circuit. By simply using an inductor, resisters and capacitors as external components, a high-efficiency step-up DC/DC converter can be easily configured. The soft start time as well as phase compensation can be set with external resistors and capacitors. Built-in a timer latch protection circuit. Built-in a shutdown control circuit. It turns off the external Pch MOSFET at the latch protection time, so it cut off the power line from VDD to VOUT. To release the latch protection, change to the stand-by mode by the CE pin, or change the VDD voltage lower than the UVLO detect voltage.
The R1213K Series are low supply current, CMOS-based PWM step-up DC/DC converters designed for high efficiency. Key features include an under-voltage lockout circuit (UVLO), a thermal shutdown circuit, and a built-in timer latch protection circuit that cuts off the power line to prevent damage.
| Supply Current (Iop1) | Typ. 50pA |
|---|---|
| Oscillator Frequency (fosc) | 1MHz |
| Lx limit Current | Typ. 3A |
| Input Voltage Range (Vin) | +2.3V to 5.5V |
| Output Voltage Accuracy | +/-1% |
| Package Type | DFN(PLP)2730-12 |
The output voltage can be adjusted externally from a minimum of -0.3V to a maximum of 15.0V.
The oscillator operates at a typical frequency of 1MHz.
The built-in timer for the latch protection circuit has a typical delay time of 32ms.