The R1225N122B-TR-FE is a CMOS-based PWM step-down DC/DC converter controller designed for high efficiency and low supply current applications. It operates within a wide input voltage range of 2.3 V to 18.5 V and offers an adjustable output voltage from 1.2 V to 6.0 V in 0.1 V steps. The device features a built-in soft-start function, latch-type protection circuit, and a PWM/VFM alternative circuit that enhances efficiency at low load currents. The oscillator frequency is selectable among three options: 180 kHz, 300 kHz, and 500 kHz. The typical efficiency is around 90%, with a standby current of approximately 0.0 µA and a high output voltage accuracy of ±2.0%. This product is suitable for applications in hand-held communication devices, battery-powered equipment, and household appliances.
Buck Regulator Positive Output Step-Down DC-DC Controller IC SOT-23-6W
Buck Regulator Positive Output Step-Down DC-DC Controller IC SOT-23-6W
18.5V INPUT PWM/VFM STEP-DOWN DC
| DigiKey | Quarktwin Technology Ltd. | Lingto Electronic Limited | |
|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | R1225N122B-TR-FE-ND | R1225N122B-TR-FE | R1225N122B-TR-FE |
| Product Name | DC DC Switching Controllers | DC DC Switching Controllers | PMIC - Voltage Regulators - DC DC Switching Controllers |
| Configuration / Function | Buck | ||
| Package Type | SOT23; Other; SOT-23-6 | SOT23; Other; SOT-23-6 | |
| fsw | 500 kHz | 500 kHz | 500 kHz |
| Operating Temperature | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | |
| Output Voltage Type | Fixed; PWM |
