The R1215D Series are low supply current CMOS PWM step-up DC/DC controllers. R1215D does not include an internal output transistor. By simply using a power MOS, an inductor, a diode, resistors, and capacitors as external components, a high-efficiency step-up DC/DC converter can be easily configured.
The R1215D Series are low supply current CMOS PWM step-up DC/DC controllers designed for high-efficiency step-up DC/DC converters. The device does not include an internal output transistor, requiring the user to configure the circuit with external components such as a power MOS, inductor, diode, resistors, and capacitors. Key features include adjustable oscillator frequency (700kHz or 1.4MHz), programmable maximum duty cycle, and embedded latch-type protection and under-voltage lockout (UVLO) circuits.
| Supply Current (Ipp1) | Typ. 600uA (700kHz), Typ. 900nA (1.4MHz) |
|---|---|
| Oscillator Frequency (fosc) | 700KHz, 1.4MHz |
| Input Voltage Range (VIN) | 2.0V to 5.5V (A/B Version), 1.8V to 5.5V (E/F Version) |
| Feedback Voltage Accuracy | ±1.5% |
| Package Type | SON-8 |
| Temp. coeff. of Feedback Voltage | + 150ppm/°C |
No, the R1215D does not include an internal output transistor and requires external components like a power MOS to be configured.
The oscillator frequency can be selected from 700kHz or 1.4MHz.
The device includes a latch type protection circuit that latches the external driver in the "OFF" state under specific conditions.