LT1930AES5#TRMPBF

LT1930A is the industry’s highest power SOT-23 switching regulator. This includes an internal 1A, 36V switch allowing high current outputs to be generated in a small footprint. The faster LT1930A switches at 2.2MHz, enabling further reductions in inductor size. Complete regulator solutions approaching one tenth of a square inch in area are achievable with these devices. Multiple output power supplies can now use a separate regulator for each output voltage, replacing cumbersome quasi-regulated approaches using a single regulator and custom transformers. A constant frequency internally compensated current mode PWM architecture results in low, predictable output noise that is easy to filter. Low ESR ceramic capacitors can be used at the output, further reducing noise to the millivolt level. Typical applications are TFT-LCD bias supply, digital cameras, cordless phones, battery backup, medical diagnostic equipment, local 5V or 12V supply, external modems, PC cards, xDSL power supply.

• Low VCESAT switch is 400mV at 1A
• Uses small surface mount components
• Maximum operating voltage is 16V
• Feedback voltage range from 1.24 to 1.27V
• FB pin bias current is 720nA (VFB=1.255V, TA=25°C. VIN=3V, V active-low SHDN=VIN)
• 12V at 250mA from 5V input
• Quiescent current in shutdown is 1µA (V active-low SHDN=0V, VIN=3V)
• Maximum duty cycle is 90% (TA=25°C, VIN=3V, V active-low SHDN=VIN)
• 5-lead plastic SOT-23 package
• Operating temperature rating range from –40°C to 85°C

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