ANALOG DEVICES LT8653SEV#PBF DC-DC Switching Synchronous Buck Regulator, Adjustable, 3V to 42V in, 5V out, LQFN-EP-20

LT8653SEV#PBF is a dual step-down regulator capable of delivering up to 2A of continuous current from both channels, with support for loads up to 3A from each channel. The LT8653S features the second generation silent switcher architecture, designed to minimize EMI emissions while maintaining high efficiency at high switching frequencies. This architecture integrates bypass capacitors to optimize high-frequency current loops, simplifying achievement of advertised EMI performance by reducing layout sensitivity. Fast, clean, low overshoot switching edges enable high-efficiency operation even at high switching frequencies, resulting in a compact solution size with wide control loop bandwidth for rapid transient response. Burst Mode operation enables ultralow standby current consumption, while forced continuous mode allows control of frequency harmonics across the entire output load range. Applications include general-purpose step-down, automotive, and industrial supplies.

• Silent Switcher®2 architecture, 2A DC from each channel simultaneously
• Forced continuous mode, high efficiency at high frequency
• Wide input voltage range from 3.0V to 42V, internal 2MHz fSW with fast internal compensation
• VIN quiescent current in shutdown is 1.7µA typical at (VEN/UV = 0V, VSYNC = 0V, TA = 25°C)
• Minimum on-time is 30ns typical at (ILOAD = 1.5A, SYNC = 0V)
• Oscillator frequency is 300KHz typical at (RT = 133K)
• Top power NMOS current limit is 5.1A typical at (VCC = 3.4V)
• Feedback pin input current is 20nA maximum at (TA = 25°C)
• Operating junction temperature range from -40°C to 125°C
• 20-lead LQFN package

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