LTC3542 Overview
The LTC®3542 is a high efficiency monolithic synchronous buck converter using a constant frequency, current mode architecture. Supply current during operation is only 26μA, dropping to <1μA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3542 ideally suited for single Li-Ion battery-powered applications.
LTC3542 Key Features
- High Peak Switch Current: 1000mA
- Low Output Ripple (<20mV P-P Typical) Burst Mode Operation: Only 26μA
- Very Low Quiescent Current: Only 26μA
- 2.5V to 5.5V Input Voltage Range
- 2.25MHz Constant Frequency Operation
- 1MHz to 3MHz External Frequency Synchronization
- Low Dropout Operation: 100% Duty Cycle
- No Schottky Diode Required
- Internal Soft-Start Limits Inrush Current
- 0.6V Reference Allows Low Output Voltages