LT1171IQ#PBF

LT1171 is a monolithic high power switching regulator. It can be operated in all standard switching configurations including buck, boost, flyback, forward, inverting and “Cuk.” A high current, high efficiency switch is included on the die along with all oscillator, control and protection circuitry. It makes device extremely easy to use and provides “bust proof” operation similar to that obtained with 3-pin linear regulators. It operates with supply voltages from 3V to 60V, and draw only 6mA quiescent current. It can deliver load power upto 100W with no external power devices. By utilizing current-mode switching techniques, they provide excellent AC and DC load and line regulation. It is used in applications such as logic supply 5V at 10A, 5V logic to ±15V op-amp supply, battery upconverter, power inverter (+ to –) or (– to +), fully floating multiple outputs.

• Very few external parts required, self-protected against overloads
• Operates in nearly all switching topologies
• Flyback-regulated mode has fully floating outputs
• Reference voltage is 1.244V typical at (TA = 25°C, VIN = 15V)
• Output switch “On” resistance is 0.30 ohm typical at (TA = 25°C, VIN = 15V)
• Switch current limit is 2.5A to 5A
• Switching frequency is 100KHz typical at (TA = 25°C, VIN = 15V)
• Output switch breakdown voltage is 90V typical at (TA = 25°C, VIN = 15V)
• Operating temperature range from -40°C to 100°C
• Package style is 5-lead DD

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party