The FAN5336 is a high-efficiency, low-noise, fixed-frequency PWM, current-mode, DC-DC boost regulator. It is designed for small LCD bias supply and white LED backlight supply applications. Depending on the application, a FAN5336 regulator can output up to 33V at up to 50mA output current. With output voltage up to 21V, the output current can be up to 100mA. FAN5336 can be used for power conversion as low as 9V output voltage. A current-mode control loop has a fast transient response that provides excellent load regulation within 0.2% of output voltage.
The FAN5336 is a high‑efficiency, low‑noise, fixed‑frequency PWM boost regulator designed for LCD bias and LED backlight supplies. It operates from 2.7 V to 5.5 V input and can deliver up to 33 V output with up to 100 mA load current, while maintaining 0.2 % load regulation.
Typical applications include portable displays, mobile phone LED backlights, medical diagnostic equipment, remote controls, and flash‑LED drivers. The device features cycle‑by‑cycle current limiting, thermal shutdown at 150 °C, over‑voltage protection, soft‑start, and a 6‑lead 3 × 3 mm MLP package for compact board layouts.
| Switching Frequency | 1.5 MHz |
|---|---|
| Output Voltage Range | 9 V – 33 V |
| Peak Switch Current | 1.5 A |
| Shutdown Current (off mode) | <1 pA |
| Load Regulation | 0.2 % |
| Input Voltage Range | 2.7 V – 5.5 V |
| Maximum Output Current | 100 mA at 21 V |
| Thermal Shutdown Temperature | 150 °C |
| Package | 6‑Lead 3 × 3 mm MLP |
The device operates at a fixed 1.5 MHz switching frequency.
It can generate up to 33 V at the output.
The off‑mode shutdown current is less than 1 pA.
It is supplied in a 6‑lead 3 × 3 mm molded leadless package (MLP).