Linear Technology has announced the high reliability, MP-grade version of the LTC3412A. The LTC3412A is a 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 suitable 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. 

Summary of Features: LTC3412AMPFE high efficiency step-down regulator

• 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
• Available in 16-lead thermally enhanced TSSOP package
• Overtemperature protection
• -55°C to 125°C operating junction temperature range

Pricing starts at $6.45 each for 1,000-piece quantities. For more information, visit www.linear.com