Analog Devices LTC3315B

Description

The LTC®3315B features dual 2A monolithic synchronous step-down converters operating from a 2.25V to 5.5V input supply in one package for space-constrained applications with demanding performance requirements. Using constant frequency, peak current mode control at switching frequencies up to 10MHz with a minimum ontime as low as 25ns, both bucks achieve high efficiency and fast transient response in a very small application footprint.

Features

• Dual Outputs Each with 2A Output Current
• High Efficiency: 19mΩ NMOS and 75mΩ PMOS
• Wide Bandwidth, Fast Transient Response
• Switching Frequency Synchronizable Up to 10MHz
• VIN Range: 2.25V to 5.5V
• VOUT Range: 0.5V to VIN
• VOUT Accuracy: }1%
• Low Ripple Burst ModeR Operation
• Peak Current Mode Control
• Minimum On-Time: 25ns
• Safely Tolerates Inductor Saturation in Overload
• Shutdown Current: 1.2μA
• Precision 400mV Enable Thresholds
• Internal Soft-Start and Compensation
• Power Good Output
• Low Profile, Thermally Enhanced 12-Lead 2mm × 2mm × 0.74mm LQFN Package
• AEC-Q100 Qualified for Automotive Applications

Typical applications

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

More information

• Datasheet
• IC product information