The R1283K Series are dual output CMOS-based PWM step-up/inverting DC/DC converters. R1283K includes a soft start circuit, an under-voltage lockout circuit (UVLO), and a latch protection circuit. By simply using inductors, resistors, capacitors, and diodes as external components, a high-efficiency step-up/inverting DC/DC converter can be easily configured. While R1280D need using an external transistor, R1283K has internal 400mΩ ON resistance transistors for both step-up and inverting. Start-up sequence of two DC/DC converters can be selected. Since the shutdown sequence can also be set by the auto-discharge function of the inverting DC/DC converter, the products are ideally suitable for applications that require setting of power supply start-up/shutdown sequence for CCD, LCD, and OLED.
The R1283K Series are dual output CMOS-based PWM step-up/inverting DC/DC converters designed for applications requiring specific power supply start-up and shutdown sequences, such as CCD, LCD, and OLED. The series features internal 400mQ ON resistance transistors for both step-up and inverting functions, eliminating the need for external transistors required by previous models like the R1280D.
| Reference Voltage Output (Vrer) | 1.2V |
|---|---|
| Feedback Voltage Accuracy | +/- 1.5% |
| Oscillator Frequency (fosc) | 300kHz, 700kHz, 1.4MHz |
| Package | DFN(PLP)2730-12 |
The products are ideally suitable for applications that require setting of power supply start-up/shutdown sequence for CCD, LCD, and OLED.
No, the R1283K has internal 400mQ ON resistance transistors for both step-up and inverting functions.
The available oscillator frequencies are 300kHz, 700kHz, and 1.4MHz.