LT1339ISW#PBF

LT1339 is a high power synchronous current mode switching regulator controller. The IC drives dual N-channel MOSFETs to create a single IC solution for high power DC/DC converters in applications upto 60V. It incorporates programmable average current limiting, allowing accurate limiting of DC load current independent of inductor ripple current. The IC also incorporates user-adjustable slope compensation for minimization of magnetics at duty cycles upto 90%. This device timing oscillator operating frequency is programmable and can be synchronized upto 150KHz. Minimum off-time operation provides main switch protection. The IC also incorporates a soft start feature that is gated by both shutdown and under voltage lockout conditions. It is widely used in application such as 48V telecom power supplies, personal computers and peripherals, distributed power converters, industrial control systems, lead-acid battery backup systems, automotive and heavy equipment etc.

• High current: dual N-channel synchronous drive handles upto 10,000pF gate capacitance
• Programmable average load current limiting
• Under voltage lockout with hysteresis
• Programmable start inhibit for power supply sequencing and protection
• Adaptive nonoverlapping gate drive prevents shoot-through
• 5V reference output with 10mA external loading capability
• Operating temperature is -40°C to 85°C
• Package style is 20-lead plastic SO wide

Notes

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