The R1242S Series are 30V input, CMOS-based PWM step-down DC/DC converters featuring 3A∗ output current. R1242S includes a soft start circuit and a latch or fold-back protection circuit. By simply using an inductor, resistors, a low side switch (FET), and capacitors as external components, a high-efficiency step-down DC/DC converter can be easily configured. Due to current mode PWM control, the R1242S provides a fast response and high efficiency. Ceramic output capacitors can be used.
The Ricoh R1242S Series are 30V input, CMOS-based PWM step-down DC/DC converters featuring a 3A output current. The series includes a soft start circuit and a latch or fold-back protection circuit. By using an inductor, resistors, a low side switch (FET), and capacitors as external components, a high-efficiency step-down DC/DC converter can be easily configured. Due to current mode PWM control, the R1242S provides a fast response and high efficiency.
| Output Current | 3A |
|---|---|
| Input Voltage Range | 0V to 30.0V |
| Output Voltage Range | 0.8V to 15.0V |
| Supply Current | Typ. 0.8mA |
| Standby Current | Max. 20uA |
| Thermal Shutdown | Stops at 160°C |
| Feedback Voltage Accuracy | ±12mV |
| Package | HSOP-8E |
The input voltage range is 0V to 30.0V.
Yes, ceramic output capacitors can be used.
The series includes a soft start circuit and a latch or fold-back protection circuit.