Product Summary

The LTC3405AES6#TRPBF is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version and fixed output voltages of 1.5V and 1.8V. Supply current during operation is only 20μA and drops to ≤ 1μA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3405AES6#TRPBF ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. The applications of the LTC3405AES6#TRPBF include Cellular Telephones, Personal Information Appliances, Wireless and DSL Modems, Digital Still Cameras, MP3 Players, Portable Instruments.

Parametrics

LTC3405AES6#TRPBF absolute maximum ratings: (1)Input Supply Voltage: -0.3V to 6V; (2)RUN, VFB Voltages: -0.3V to VIN; (3)SW Voltage: -0.3V to (VIN + 0.3V); (4)P-Channel Switch Source Current (DC): 800mA; (5)N-Channel Switch Sink Current (DC): 800mA; (6)Peak SW Sink and Source Current: 1.3A; (7)Operating Temperature Range: -40℃ to 85℃; (8)Junction Temperature: 125℃; (9)Storage Temperature Range: -65℃ to 150℃; (10)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LTC3405AES6#TRPBF features: (1)High Efficiency: Up to 96%; (2)Very Low Quiescent Current: Only 20μA During Operation; (3)600mA Output Current; (4)2.5V to 5.5V Input Voltage Range; (5)1.5MHz Constant Frequency Operation; (6)No Schottky Diode Required; (7)Low Dropout Operation: 100% Duty Cycle; (8)0.6V Reference Allows Low Output Voltages; (9)Shutdown Mode Draws ≤ 1μA Supply Current; (10)Current Mode Operation for Excellent Line and Load Transient Response; (11)Overtemperature Protected; (12)Low Profile (1mm) ThinSOT Package.

Diagrams

LTC3405AES6#TRPBF block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LTC3405AES6#TRPBF
LTC3405AES6#TRPBF


IC REG BUCK SYNC ADJ .3A SOT23-6

Data Sheet

0-2500: $1.18
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LTC3025
LTC3025

Other


Data Sheet

Negotiable 
LTC3025EDC#TR
LTC3025EDC#TR


IC REG LDO ADJ .3A 6DFN

Data Sheet

0-5000: $0.88
LTC3025EDC#TRM
LTC3025EDC#TRM


IC REG LDO ADJ .3A 6DFN

Data Sheet

0-5000: $0.88
LTC3025EDC#TRMPBF
LTC3025EDC#TRMPBF


IC REG LDO ADJ .3A 6DFN

Data Sheet

0-1000: $0.88
LTC3025EDC#TRPBF
LTC3025EDC#TRPBF


IC REG LDO ADJ .3A 6DFN

Data Sheet

0-2500: $0.88
LTC3025EDC-1#TRMPBF
LTC3025EDC-1#TRMPBF


IC REG LDO ADJ .5A 6DFN

Data Sheet

0-1000: $0.97