LT3684EDD#TRPBF

LT3684 is an adjustable frequency (300KHz to 2.8MHz) monolithic buck switching regulator that accepts input voltages up to 34V (36V maximum). A high efficiency 0.18ohm 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. The LT3684’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). Applications include automotive battery regulation with exposed pads for low thermal resistance, power for portable products, distributed supply regulation, industrial supplies and wall transformer regulation.

• Wide operating input range from 3.6V to 34V, 36V maximum
• 2A maximum output current
• Low shutdown current of IQ <lt/> 1µA, integrated boost diode
• Power good flag, saturating switch design, 0.18ohm on-resistance
• 1.265V feedback reference voltage
• Soft-start capability
• Output voltage range from 1.265V to 20V
• 10-lead plastic DFN package, -40°C to 85°C temperature range

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