LT1933IS6#TRMPBF

LT1933 is a current mode PWM step-down DC/DC converter with an internal 0.75A power switch. The wide input range of 3.6V to 36V makes the device suitable for regulating power from a wide variety of sources, including unregulated wall transformers, 24V industrial supplies and automotive batteries. Its high operating frequency allows the use of tiny, low cost inductors and ceramic capacitors, resulting in low, predictable output ripple. Cycle-by-cycle current limit provides protection against shorted outputs, and soft-start eliminates input current surge during start up. Output rating is 5V at 600mA from 16 to 36V input), 3.3V at 600mA from 12 to 36V input, 5V at 500mA from 6.3 to 36V input, 3.3V at 500mA from 4.5 to 36V input. It is used in application such as automotive battery regulation, industrial control supplies, wall transformer regulation, distributed supply regulation, battery-powered equipment etc.

• Fixed frequency 500KHz operation
• Internally compensated
• Low shutdown current is <lt/>2μA maximum
• Output adjustable down to 1.25V
• Maximum duty cycle is 94% typical
• Switch current limit is 1.05A typical
• Switching frequency is 500KHz typical
• Operating temperature is -40°C to 125°C
• Packaging style is 6-lead plastic TSOT-23

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