ANALOG DEVICES LT8610AHMSE-3.3#PBF DC-DC Switching Synchronous Buck Regulator, Fixed, 3.4 to 42V in, 3.3V / 3.5A Out, MSOP-16

LT8610AHMSE-3.3#PBF is a LT®8610A series, a compact, high-efficiency, high-speed synchronous monolithic step-down switching regulator that consumes only 2.5µA of quiescent current. Compared to the LT8610, it offers higher maximum output currents of 3.5A and a faster minimum switch-on time of 30ns. The LT8610A maintains the same low ripple burst mode performance as the LT8610. The ASYNC pin allows synchronization to an external clock. The EN/UV pin features an accurate 1V threshold for VIN undervoltage lockout or shutdown. A capacitor on the TR/SS pin programs the output voltage ramp rate during startup. The PG flag signals when VOUT is within ±9% of the programmed output voltage, as well as fault conditions. Applications include automotive and industrial supplies, as well as GSM power supplies.

• Safely tolerates inductor saturation in overload
• Accurate 1V enable pin threshold, O/P soft-start and tracking, wide I/P voltage range: 3.4V to 42V
• VIN quiescent current is 1µA typical at (VEN/UV = 0V, TA = 25°C), 82% 1mA load efficiency
• Oscillator frequency is 210KHz typical at (RT = 221k, ILOAD = 1A, TA = 25°C)
• Minimum on-time is 30ns typical at (ILOAD = 1A, SYNC = 0V, TA = 25°C)
• Top power NMOS on-resistance is 120mohm typical at (ISW = 1A, TA = 25°C)
• BIAS pin current consumption is 9mA typical at (VBIAS = 3.3V, ILOAD = 1A, 2MHz, TA = 25°C)
• EN/UV pin current is 20nA maximum at (VEN/UV = 2V, TA = 25°C)
• Operating junction temperature range from -40°C to 150°C
• 16-lead plastic MSOP package

Notes

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