Product Brief

Buck regulator now offered in MP-grade temperature range

Steve Bitton
7/2/2009 9:55 PM EDT
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

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