LTC1871EMS-7#PBF

LTC1871-7 is a current mode, boost, flyback and SEPIC controller optimized for driving 6V-rated MOSFETs in high voltage applications. This device works equally well in low or high power applications and requires few components to provide a complete power supply solution. The switching frequency can be set with an external resistor over a 50KHz to 1MHz range, and can be synchronized to an external clock using the MODE/SYNC pin. Burst Mode operation at light loads, a low minimum operating supply voltage of 6V and a low shutdown quiescent current of 10µA make the device well suited for battery-operated systems. It is widely used in application such as telecom power supplies, 42V automotive systems, 24V industrial controls, IP phone power supplies etc.

• Wide chip supply voltage range is 6V to 36V
• Current mode control provides excellent transient response
• High maximum duty cycle (92% typ)
• RUN pin input threshold hysteresis is 100mV typical
• Internal voltage reference is ±1%
• Synchronizable to an external clock upto 1.3 × fOSC
• User-controlled pulse skip or Burst Mode® operation
• Output overvoltage protection
• Operating temperature is -40°C to 85°C
• Package 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