Analog Devices LTC3315A

Description

The LTC®3315A features dual 2A monolithic synchronousstep-down converters operating from a 2.25V to5.5V input supply in one package for space-constrainedapplications with demanding performance requirements.Using constant frequency, peak current mode control atswitching frequencies up to 3MHz with a minimum ontimeas low as 25ns, both bucks achieve high efficiencyand fast transient response in a very small applicationfootprint.

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 3MHz
• VIN Range: 2.25V to 5.5V
• VOUT Range: 0.5V to VIN
• VOUT Accuracy: ±1%
• Low Ripple Burst Mode® 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

Typical applications

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

More information

• Datasheet