Overvoltage, Undervoltage and Reverse Supply Protection Controller Features: Wide Operating Voltage Range: 2.5V to 34V Overvoltage Protection to 60V Reverse Supply Protection to –40V LTC4365: Blocks 50Hz and 60Hz AC Power LTC4365-1: Fast (1ms) Recovery from Fault No Input Capacitor or TVS Required for Most Applications Adjustable Undervoltage and Overvoltage Protection Range Charge Pump Enhances External N-Channel MOSFET Low Operating Current: 125μA Low Shutdown Current: 10μA Compact 8-Lead, 3mm × 2mm DFN and TSOT-23 (ThinSOT™) Packages AEC-Q100 Qualified for Automotive Applications

Dual 4MHz, 3A Synchronous Step-Down DC/DC Converter Features: High Efficiency: Up to 94% Dual Outputs with 2 × 3A Output Current Capability Low Output Ripple Burst Mode® Operation: IQ = 130μA 2.25V to 5.5V Input Voltage Range ±1% Output Voltage Accuracy Output Voltages Down to 0.6V Programmable Slew Rate at Switch Pins Low Dropout Operation: 100% Duty Cycle Shutdown Current ≤1μA Adjustable Switching Frequency Up to 4MHz Internal or External Compensation Selectable Pulse-Skipping/Forced Continuous/ Burst Mode Operation with Adjustable Burst Clamp Optional Active Voltage Positioning (AVP) with Internal Compensation Selectable 0°/90°/180° (LTC3615) or selectable 140°/180° (LTC3615-1) Phase Shift Between Channels Fixed Internal and Programmable External Soft-Start Accurate Start-Up Tracking Capability DDR Memory Mode IOUT = ±1.5A Available in 4mm × 4mm QFN-24 and eTSSOP-24 Packages

Ultralow Voltage Step-Up Converter and Power Manager Features: Operates from Inputs of 20mV Complete Energy Harvesting Power Management System Selectable VOUT of 2.5V, 3V, 3.7V or 4.5V LDO: 2.2V at 3mA Logic Controlled Output Reserve Energy Output Power Good Indicator Uses Compact Step-Up Transformers Small 12-Lead (3mm × 4mm) DFN or 16-Lead SSOP Packages

15V, 2.5A Synchronous Buck-Boost DC/DC Converter Features:Regulated Output with VIN Above, Below or Equal to VOUT2.7V to 15V Input Voltage Range2.5V to 14V Output Voltage Range2.5A Continuous Output Current: VIN ≥ 5V, VOUT = 5V, PWM ModeOutput Current MonitorUp to 95% Efficiency750kHz Switching Frequency, Synchronizable Between 300kHz and 1.5MHzInternal N-Channel MOSFETsSelectable Burst Mode® Operation, IQ = 50μAShutdown Current < 1μAOvervoltage ProtectionOutput Disconnect in ShutdownInternal Soft-StartSmall, Thermally Enhanced 16-Lead (4mm × 5mm × 0.75mm) DFN and 20-Lead TSSOP Package

16-Channel 50mA LED Driver with Buck Controller Features: 6V to 55V Power Input Voltage Range 16 Independent LED Outputs Up to 75mA/36V ±3% LED Current Matching at 50mA (Typ ±1%) 6-Bit Dot Correction Current Adjustment 12-Bit Grayscale PWM Dimming 0.5μs Minimum LED On-Time Adaptive LED Bus Voltage for High Efficiency Cascadable 30MHz Serial Data Interface Full Diagnostic and Protection: Individual Open/Short LED and Overtemperature Fault 40-Lead 6mm × 6mm QFN Package

Dual Ideal Diode and Single Hot Swap Controller Features: Power Path and Inrush Current Control for Redundant Supplies Low Loss Replacement for Power Schottky Diodes Allows Safe Hot Swapping from a Live Backplane 2.9V to 18V Operating Range Controls N-Channel MOSFETs Limits Peak Fault Current in ≤1μs 0.5μs Ideal Diode Turn-On and Reverse Turn-Off Time Adjustable Current Limit with Circuit Breaker Smooth Switchover without Oscillation Adjustable Current Limit Fault Delay Fault and Power Status Output 20-Lead 4mm × 5mm QFN and 16-Lead SSOP Packages

Dual Ideal Diode and Single Hot Swap Controller Features: Power Path and Inrush Current Control for Redundant Supplies Low Loss Replacement for Power Schottky Diodes Allows Safe Hot Swapping from a Live Backplane 2.9V to 18V Operating Range Controls N-Channel MOSFETs Limits Peak Fault Current in ≤1μs 0.5μs Ideal Diode Turn-On and Reverse Turn-Off Time Adjustable Current Limit with Circuit Breaker Smooth Switchover without Oscillation Adjustable Current Limit Fault Delay Fault and Power Status Output 20-Lead 4mm × 5mm QFN and 16-Lead SSOP Packages

Dual Ideal Diode and Single Hot Swap Controller Features: Power Path and Inrush Current Control for Redundant Supplies Low Loss Replacement for Power Schottky Diodes Allows Safe Hot Swapping from a Live Backplane 2.9V to 18V Operating Range Controls N-Channel MOSFETs Limits Peak Fault Current in ≤1μs 0.5μs Ideal Diode Turn-On and Reverse Turn-Off Time Adjustable Current Limit with Circuit Breaker Smooth Switchover without Oscillation Adjustable Current Limit Fault Delay Fault and Power Status Output 20-Lead 4mm × 5mm QFN and 16-Lead SSOP Packages

Programmable Hex Voltage Supervisor with EEPROM Features: Supervises 6 Power Supplies I2C Adjustable UV and OV Trip Points Guaranteed Threshold Accuracy: ±1% I2C/SMBus Interface Internal EEPROM 256 Programmable Thresholds per Channel Up to Three Range Settings per Channel Two General Purpose Inputs Three General Purpose Inputs/Outputs Programmable Output Delays Supply Voltage Range, 3.4V to 13.9V Supply Voltage Power Sharing from V1 to V4 16-Lead 5mm × 4mm DFN and SSOP Packages

UltraFast 7ns Response Time 15GHz RF Power Detector with Comparator Features: Temperature Compensated Schottky RF Peak Detector Wide Input Frequency Range: 600MHz to 15GHz† Wide Input Power Range: –24dBm to 16dBm 7ns Typical Response Time 75MHz Demodulation Bandwidth Programmable Gain Settings for Improved Sensitivity Adjustable Amplifier Output Offset Voltage High Speed Comparator with Latch Enable: 9ns Typical Response Time 16-Lead 3mm × 3mm QFN Package Temperature Range: –40°C to 125°C†Higher frequency operation is achievable with reduced performance. Consult the factory formore information.