The LTC3122 can deliver up to 800mA of continuous output current at 12V from a 5V input. Pin-selected Burst Mode operation lowers quiescent current to only 25µA, providing extended battery run time in handheld applications. The combination of its thermally enhanced MSOP-12 package and a constant switching frequency up to 3MHz enables the designer to balance printed circuit board solution size with required efficiency.
The H-grade version is specified over an operating junction temperature range of -40°C to +150°C. The electrical specifications are identical to the existing E and I grades. This version is ideal for automotive, industrial and military applications that are subject to high ambient temperatures.
The LTC3122HMSE is available in a 12-lead thermally enhanced MSOP package, priced starting at $2.98 each for 1,000-piece quantities and is available from stock.
Key features:
- 150°C Max Operating Junction Temperature,
- VIN Range: 1.8V to 5.5V, 500mV After Start-Up,
- Output Voltage Range: 2.2V to 15V,
- 800mA Output Current for VIN = 5V & VOUT = 12V,
- Output Disconnects from Input when Shutdown,
- Synchronous Rectification: up to 95% Efficiency,
- Inrush Current Limit,
- Up to 3MHz Adjustable Switching Frequency Synchronizable to External Clock,
- Selectable Burst Mode Operation: 25µA IQ,
- Output Overvoltage Protection,
- Soft-Start,
- <1µA IQ in Shutdown,
- 12-Lead Thermally Enhanced MSOP Package.