uP1539 Overview
Key Features
- The uP1539 is a single phase PWM controller with integrated high-current MOSFET driver
- It can work with either 5V or 12V supplies and converts 1.5V to 19V power input
- The bootstrap diode is built-in to simplify the circuit design and minimize external part count
- The uP1539 implements voltage mode control loop with fast transient response
- High light-load efficiency is achieved by the single control loop
- The operation frequency is programmable up to 1000kHz
- The uP1539 provides a programmable dual level overcurrent protection
- The current information is monitored across the inductor DCR
- Other features include pre-bias internal soft-start, power OK indication, UVP, OVP and OTP
- With aforementioned functions, this part provides a compact, high efficiency, well-protected and cost-effective solutions
