Analog Devices LTC3308A

Description

The LTC®3308A is a very small, high efficiency, low noise, monolithic synchronous 4A step-down DC/DC converter operating from a 2.25V to 5.5V input supply. Using constant frequency, peak current mode control at switching frequencies up to 3MHz and minimum on-time as low as 22ns, this regulator achieves fast transient response with small external components. Silent Switcher architecture minimizes EMI emissions.

Features

• High Efficiency: 8mΩ NMOS, 31mΩ PMOS
• Programmable Frequency to 3MHz
• Tiny Inductor and Capacitors
• Peak Current Mode Control
• 22ns Minimum On-Time
• Wide Bandwidth, Fast Transient Response
• Silent Switcher™ Architecture
• Ultralow EMI Emissions
• Low Ripple Burst Mode® Operation with IQ of 40μA
• Safely Tolerates Inductor Saturation in Overload
• VIN Range: 2.25V to 5.5V
• VOUT Range: 0.5V to VIN
• VOUT Accuracy: ±1% Over Temperature Range
• Precision 400mV Enable Threshold
• Shutdown Current: 1μA
• Power Good, Internal Compensation and Soft Start
• Thermally Enhanced 2mm × 2mm LQFN Package
• AEC-Q100 Qualified for Automotive Applications

Typical applications

• Automotive
• Industrial
• Optical Networking, Servers, Telecom, Communications
• Distributed DC Power Systems (POL), FPGA, ASIC, μP Core Supplies

More information

• Datasheet
• IC product information