LT3992EFE#PBF

LT3992 is a dual current mode PWM step-down DC/DC converter with two internal 4.6A switches. Independent input voltage, shutdown, feedback, soft-start, UVLO current limit and comparator pins for each channel simplify complex power supply tracking and sequencing requirements. To optimize efficiency and component size, both converters have a programmable maximum current limit and are synchronized to either a common external clock input, or a resistor settable fixed 250KHz to 2MHz internal oscillator. A frequency divider is provided for channel 1 to further optimize component size. At all frequencies, a 180° phase relationship between channels is maintained, reducing voltage ripple and component size. A clock output is available for synchronizing multiple regulators. It is used in applications such as automotive supplies, distributed supply regulation.

• Die temperature monitor
• Independent synchronized switching frequencies optimize component size
• Antiphase switching, outputs can be paralleled
• Flexible output voltage tracking
• Low dropout: 95% maximum duty cycle
• Switching frequency is 1000KHz typ at (RRT/SYNC = 28K, TA = 25°C)
• Operating temperature range from -40°C to 125°C
• Package style is 38-lead plastic TSSOP

Notas

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