The LTC3895 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage that can operate from input voltages up to 140V. A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz. The gate drive voltage can be programmed from 5V to 10V to allow the use of logic or standard-level FETs to maximize efficiency. An integrated switch in the top gate driver eliminates the need for an external bootstrap diode. An internal charge pump allows for 100% duty cycle operation. The low 40μA no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3895 features a precision 0.8V reference and power good output indicator. The output voltage can be programmed between 0.8V to 60V using external resistors or pin-programmed for a fixed 5V or 3.3V. Applications * Automotive and Industrial Power Systems * High Voltage Battery Operated Systems * Telecommunications Power Systems * Wide VIN Range: 4V to 140V (150V Abs Max) * Wide Output Voltage Range: 0.8V to 60V * Adjustable Gate Drive Level: 5V to 10V (OPTI-DRIVE) * Low Operating IQ: 40μA (Shutdown = 10μA) * 100% Duty Cycle Operation * No External Bootstrap Diode Required * Selectable Gate Drive UVLO Thresholds * Onboard LDO or External NMOS LDO for DRVCC * EXTVCC LDO Powers Drivers from VOUT * Phase-Lockable Frequency (75kHz to 850kHz) * Programmable Fixed Frequency (50kHz to 900kHz) * Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode® Operation at Light Loads * Adjustable Burst Clamp and Current Limit * Adjustable or Fixed (5V/3.3V) Output Voltage * Power Good Output Voltage Monitor * Programmable Input Overvoltage Lockout * 38-Lead TSSOP High Voltage Package https://elecena.pl/product/6046312/150v-low-i-synchronous-step-down-dc-dc-controller 2016-04-30 https://elecena.pl/product/6046312/150v-low-i-synchronous-step-down-dc-dc-controller 2017-10-10 https://elecena.pl/product/6046312/150v-low-i-synchronous-step-down-dc-dc-controller 2025-01-17