Analog Devices LTC3311 | Demoboard DC3056A

Description

Demonstration circuit 3056A features the LTC®3311,12.5A, low voltage synchronous step-down Silent Switcher® operating as a 2MHz, 2.25V–5.5V input,1.2V 12.5A output buck regulator. The LTC3311 supports output voltages from 0.5V to VIN with operating frequencies from 500kHz up to 5MHz. The LTC3311 is a compact,ultralow emission, high efficiency, and high speed synchronous monolithic step-down switching regulator. The Silent Switcher technology optimizes fast-current loops and makes it easier to minimize EMI/EMC emissions. Fast minimum on-time of 35ns enables high VIN to low VOUT conversion at high frequency.

Features

• Pin Compatible with LTC3310/LTC3310S and LTC3311S
• Silent Switcher® Architecture
• Ultralow EMI Emissions
• High Efficiency—4.5mΩ NMOS and 16mΩ PMOS
• Wide Bandwidth, Fast Transient Response -Safely Tolerates Inductor Saturation in Overload
• VIN Range: 2.25V to 5.5V
• VOUT Range: 0.5V to VIN
• VOUT Accuracy: ±1% with Remote Sense
• Peak Current Mode Control
• Minimum On-Time: 35ns
• Programmable Frequency to 5MHz
• Precision 400mV Enable Threshold, 1μA in Shutdown
• Output Soft-Start with Voltage Tracking
• Power Good Output
• Die Temperature Monitor
• Configurable for Paralleling Power Stages in Forced Continuous Mode
• Thermally-Enhanced 3mm × 3mm LQFN Package
• AEC-Q100 Qualified for Automotive Applications

Typical applications

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

More information

• Datasheet
• IC product information