STCF07 is a dedicated, size-optimized solution for driving a power LED. The device is a buck-boost converter which guarantees proper LED current control over all possible battery voltage and LED forward voltage conditions. The output current control ensures good current regulation over the forward voltage spread characteristics of high-brightness LEDs. The device includes various functions to protect the chip and the power LEDs. These include soft-start control as well as detection and protection of chip overtemperature and shorted LEDs. An optional external NTC is supported.
The STCF07 is a dedicated buck-boost DC-DC converter designed to drive a single high-power white LED. It operates with a typical switching frequency of 1.8 MHz and supports output currents of up to 1 A in flash mode or 800 mA in continuous mode. The device features adjustable current control, LED temperature protection via an optional NTC resistor, and various safety mechanisms including overvoltage, short-circuit, and overtemperature protection. It is housed in a compact 16-lead QFN16 package.
| Output current (flash mode) | 1 A |
|---|---|
| Output current (continuous mode) | 800 mA |
| Input voltage supply | 2.7 V to 5.5 V |
| Switching frequency | 1.8 MHz (typ.) |
| Package type | QFN16 (4 x 4 x 1 mm) |
| Output overvoltage protection | 5.3 V |
| Shutdown current | 1 µA max |
The device can drive one power LED up to 1 A in flash mode.
The device operates at a typical fixed frequency of 1.8 MHz.