Step-Down Regulator withstands MP-grade temperature range.

Press Release Summary:

Supplied in TSSOP-16E package, LTC3412AMPFE is 4 MHz synchronous buck regulator that uses constant frequency, current mode architecture and delivers up to 3 A of continuous output current at voltages down to 0.8 V. It operates from 2.25-5.5 V input and over -55 to +125°C junction temperature range, exhibiting efficiencies up to 95%. Features include programmable frequency from 300 kHz to 4 MHz, ±2% output voltage accuracy, and synchronizable switching frequency.

Original Press Release:

4MHz, 3A Synchronous Step-Down Regulator Now Offered in High Reliability, MP-Grade Temperature Range

MILPITAS, CA - July 2, 2009 - Linear Technology announces the high reliability, MP-grade version of the LTC3412A. The LTC3412A is a high efficiency, 4MHz synchronous buck regulator that uses a constant frequency, current mode architecture. It can deliver up to 3A of continuous output current at voltages as low as 0.8V from a thermally enhanced TSSOP-16 package. It operates from an input voltage range of 2.25V to 5.5V, making it ideal for both single-cell Li-Ion, or NiMH applications, as well as more general purpose fixed rail systems. The MP-grade version is guaranteed to operate over a -55°C to 125°C junction temperature range. The LTC3412AMP is ideal for high reliability applications that can experience a very wide ambient temperature range.

The LTC3412AMPFE is available in a TSSOP-16E package. Pricing starts at $6.45 each for 1,000-piece quantities. For more information, visit

Summary of Features: LTC3412AMPFE

High Efficiency: Up to 95%

3A Output Current

Low Quiescent Current: 64uA

Low RDS(ON) Internal Switch: 77mOhm

2.25V to 5.5V Input Voltage Range

Programmable Frequency: 300KHz to 4MHz

±2% Output Voltage Accuracy

0.8V Reference Allows Low Output Voltage

Selectable Forced Continuous/Burst Mode® Operation with Adjustable Burst Clamp

Synchronizable Switching Frequency

Low Dropout Operation: 100% Duty Cycle

Power Good Output Voltage Monitor

Overtemperature Protection

Available in 16-Lead Thermally Enhanced TSSOP Package

Overtemperature Protection

-55°C to 125°C Operating Junction Temperature Range

About Linear Technology
Linear Technology Corporation, a manufacturer of high performance linear integrated circuits, was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major public companies in 2000. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, µModule® products, and many other analog functions. Applications for Linear Technology's high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems.
LT, LTC, LTM, µModule and are registered trademarks of Linear Technology Corp. All other trademarks are the property of their respective owners.

North America and General Information
John Hamburger
Tel: (408) 432-1900 ext. 2419

Doug Dickinson
Tel: (408) 432 1900 ext. 2233

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