LT3980 Description
The LT®3980 is an adjustable frequency (100kHz to 2.4MHz) monolithic buck switching regulator that accepts input voltages up to 58V (80V transient). A high efficiency 200mΩ switch is included on the die along with a boost Schottky diode and the necessary oscillator, control, and logic circuitry. Current mode topology is used for fast transient response and good loop stability.
LT3980 Key Features
- Wide Input Range: Operation from 3.6V to 58V
- Overvoltage Lockout Protects Circuits Through 80V
- 2A Maximum Output Current
- Low Ripple (<15mVP-P) Burst Mode® Operation: IQ = 85µA at 12VIN to 3.3VOUT
- Adjustable Switching Frequency: 100kHz to 2.4MHz
- Low Shutdown Current: IQ < 1µA
- Catch Diode Current Sense Protects Circuit Through
- Synchronizable Between 250kHz to 2MHz
- Power Good Flag
- Saturating Switch Design: 200mΩ On-Resistance