Description
The UTC UC3550 series is a compact, high efficiency, step-up DC/DC controllers includes an error amplifier, oscillator, PWM comparator, skip cycle comparator, voltage reference, soft-start, and high speed lower ON-resistance driver for driving external power devices (NMOS or NPN) ,Additionally, a CE
Features
- S.
- Input Voltage Range：0.9~8V.
- Output Voltage Range：1.8~6V Programmable in 0.1V with High Accuracy ± 2.5%.
- High Efficiency 88% (Typ. ).
- Low Start-up Voltage of 0.9V Typical at IOUT = 1.0mA.
- Oscillator Frequency: 300kHz. (±20%).
- Chip Enable Pin with Pull-up Current Source.
- High Output Current up to 1000mA (VIN = 2.0V, VOUT =3.3V).
UC3550 Datasheet
