ANALOG DEVICES LT8636JV#PBF DC-DC Switching Synchronous Buck Regulator, Adjustable, 3.4V to 42V in, 0.97V out, LQFN-EP-20

LT8636JV#PBF is a synchronous step-down regulator featuring Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. Peak current mode control with a 30ns minimum on-time allows for high step-down ratios even at high switching frequencies. The LT8636�s ultralow 2.5µA quiescent current, with the output in full regulation, enables applications requiring the highest efficiency at very small load currents. Burst Mode operation enables ultralow standby current consumption; forced continuous mode can control frequency harmonics across the entire output load range, or spread spectrum operation can further reduce EMI emissions. Soft-start and tracking functionality is accessed via the TR/SS pin, and an accurate input voltage UVLO threshold can be set using the EN/UV pin. Applications include automotive and industrial supplies, as well as general-purpose step-down.

• Silent Switcher ® architecture, ultralow EMI emissions
• External compensation: fast transient response and current sharing
• Forced continuous mode, output soft-start and power good
• VIN quiescent current in shutdown is 1µA typical at (VEN/UV = 0V, TA = 25°C)
• Oscillator frequency is 210KHz typical at (RT = 221k, TA = 25°C)
• Minimum on-time is 30ns typical at (ILOAD = 1.5A, SYNC = 0V, TA = 25°C)
• Top power NMOS on-resistance is 66mohm typical at (ISW = 1A, TA = 25°C)
• Spread spectrum modulation frequency is 3KHz typical at (VSYNC = 3.3V, TA = 25°C)
• Feedback reference voltage is 0.970V typical at (VIN = 6V, TA = 25°C)
• Operating junction temperature range from -40°C to 150°C, 20-lead LQFN package

Notes

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