(China (Mainland))
Product Summary
The LTC3412AEUF is a high efficiency monolithic synchronous, step-down DC/DC converter utilizing a constant frequency, current mode architecture. The LTC3412AEUF operates from an input voltage range of 2.25V to 5.5V and provides a regulated output voltage from 0.8V to 5V while delivering up to 3A of output current. The internal synchronous power switch with 77mΩ on-resistance increases efficiency and eliminates the need for an external Schottky diode. Switching frequency is set by an external resistor or can be synchronized to an external clock. 100% duty cycle provides low dropout operation extending battery life in portable systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of loads and output capacitors. The applications of the LTC3412AEUF include Point-of-Load Regulation, Notebook Computers, Portable Instruments and Distributed Power Systems.
Parametrics
LTC3412AEUF absolute maximum ratings: (1)Input Supply Voltage: –0.3V to 6V; (2)ITH, RUN/SS, VFB, PGOOD, SYNC/MODE Voltages: –0.3 to VIN; (3)SW Voltages: –0.3V to (VIN + 0.3V); (4)Operating Ambient Temperature Range: –40 to 85℃; (5)Junction Temperature: 125℃; (6)Lead Temperature (Soldering, 10 sec): 300℃.
Features
LTC3412AEUF features: (1)High Efficiency: Up to 95%; (2)3A Output Current; (3)Low Quiescent Current: 64μA; (4)Low RDS(ON) Internal Switch: 77mΩ; (5)2.25V to 5.5V Input Voltage Range; (6)Programmable Frequency: 300KHz to 4MHz; (7)±2% Output Voltage Accuracy; (8)0.8V Reference Allows Low Output Voltage; (9)Selectable Forced Continuous/Burst Mode operation with Adjustable Burst Clamp; (10)Synchronizable Switching Frequency; (11)Low Dropout Operation: 100% Duty Cycle; (12)Power Good Output Voltage Monitor; (13)Overtemperature Protected; (14)Available in 16-Lead Exposed Pad TSSOP and QFN Packages.
Diagrams
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 LTC3412AEUF#PBF |
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IC REG BUCK SYNC ADJ 3A 16QFN |
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LTC3412AEUF#TRPBF |
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IC REG BUCK SYNC ADJ 3A 16QFN |
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