LTC3548
Description
The LTC®3548 is a dual, constant-frequency, synchronous step down DC/DC converter. Intended for low power applications, it operates from 2.5V to 5.5V input voltage range and has a constant 2.25MHz switching frequency, allowing the use of tiny, low cost capacitors and inductors with a profile ≤1mm.
Key Features
- Very Low Quiescent Current: Only 40μA
- Low Output Ripple Burst Mode® Operation n 2.25MHz Constant-Frequency Operation
- High Switch Current: 0.7A and 1.2A
- No Schottky Diodes Required
- Low RDS(ON) Internal Switches: 0.35Ω
- Current Mode Operation for Excellent Line and Load Transient Response
- Short-Circuit Protected
- Low Dropout Operation: 100% Duty Cycle
- Ultralow Shutdown Current: IQ < 1μA
- Output Voltages from 5V down to 0.6V
