LT3685EMSE#TRPBF

LT3685 is an adjustable frequency monolithic step-down switching regulator. A high efficiency 0.25 switch is included on the die along with a boost Schottky diode and the necessary oscillator, control, and logic circuitry. Current mode topology is used for fast transient response and good loop stability. This device’s high operating frequency allows the use of small, low cost inductors and ceramic capacitors resulting in low output ripple while keeping total solution size to a minimum. The low current shutdown mode reduces input supply current to less than 1μA while a resistor and capacitor on the RUN/SS pin provide a controlled output voltage ramp (soft-start). It is widely used in application such as automotive battery regulation, set top box, distributed supply regulation, industrial supplies, wall transformer regulation etc.

• Minimum input voltage is 3V typical
• Overvoltage lockout is 38V typical
• 2A maximum output current
• Adjustable switching frequency is 200KHz to 2.4MHz
• Low shutdown current is <lt/> 1μA
• Integrated boost diode, power good flag
• 0.790V feedback reference voltage
• Soft-start capability, output voltage is 0.79V to 20V
• Operating temperature is -40°C to 125°C
• Packaging style is 10-lead plastic MSOP

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