Date: 08/11/2008

Low noise, power boost converters with 8.5uA of quiescent current

Linear Technology announces the LT8410/-1 low noise micropower boost converters with integrated power switches, Schottky and catch diodes and output disconnect circuitry packaged in a 2mm x 2mm DFN package. The LT8410/-1 consumes 8.5uA of quiescent in active mode zero in shutdown mode. Integrated high value (12.4M/0.4M) output feedback divider resistors enable the LT8410/-1 to regulate a 16V output with no load with less than 30uA of quiescent current. Small switch current limits (25mA for the LT8410 and 8mA for the LT8410-1) enable these converters to operate very efficiently from high impedance sources, such as coin cell batteries without any inrush current limitations.

Other Features: LT8410/-1

Comparator Built into SHDN pin
Low Noise Control Scheme
Adjustable FB Reference Voltage
Input Range: 2.6V to 16V
Output Range: Up to 40V
Integrated Power NPN Switch
25mA Current Limit (LT8410)
8mA Current Limit (LT8410-1)
Integrated Schottky Diode
Integrated Output Disconnect
High Value (12.4M/0.4M) Feedback Resistors Integrated
Built in Soft-Start (Optional Capacitor from VREF to GND)
Overvoltage Protection for CAP and VOUT PVS

Availability: Now in stock
Price: starts at $1.75 each for 1,000-piece quantities