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LTC3315AEV DataSheet

LTC3315AEV DataSheet

Part No.
Part Marking
–40°C to 125°C
LQFN (Laminate Package with QFNFootprint)
File Size
1963 KB
26 Pages
Linear Technology
Upload Time
2022-05-16 14:51:05
Update Time
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LTC3315AEV 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 and 16-Ball 1.64mm × 1.64mm × 0.5mm WLCSP Packages
■ AEC-Q100 Qualified for Automotive Applications

LTC3315AEV Applications

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

LTC3315AEV Description

LTC3315AEV 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 3MHz with a minimum on-time as low as 25ns, both bucks achieve high efficiency and fast transient response in a very small application footprint.

LTC3315AEV operates in forced continuous or pulseskipping mode for low noise or in Burst Mode® operation for high efficiency at light loads. The common buck switching frequency is 2MHz and can be synchronized to an external oscillator via the MODE/SYNC pin.

LTC3315AEV can regulate outputs as low as 500mV. Other features include precision enable thresholds, a PGOOD signal, output overvoltage protection, thermal shutdown, output short-circuit protection, and up to 100% duty cycle operation for low dropout. The LTC3315A is available in a compact 2mm × 2mm LQFN package and a 1.64mm × 1.64mm WLCSP package.

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