42V Quad Monolithic Synchronous Step-Down Regulator Features: Flexible Power Supply System Providing Four Outputs with a Wide Input Range Two High Voltage Synchronous Buck Regulators: 3V to 42V Input Voltage Range Output Currents Up to 2.5A and 1.5A High Efficiency Up to 93% Two Low Voltage Synchronous Buck Regulators: 2.6V to 5.5V Input Voltage Range Output Currents Up to 1.8A and 94% Efficiency Programmable Power-On Reset Power Good Indicators Resistor Programmable and Synchronizable 250kHz to 2.2MHz Switching Frequency Low Ripple Burst Mode® Operation: 30μA IQ at 12VIN Output Ripple < 15mV 2-Phase Clock Reduces Input Current Ripple Available in Thermally Enhanced 40-Lead QFN (6mm × 6mm) Package AEC-Q100 Qualified for Automotive Applications

42V, Low IQ, Quad Output Triple Monolithic Buck Converter and Boost Controller Features: Flexible Power Supply System Capable of Four Regulated Outputs with VBATT << VOUT Two High Voltage Synchronous Buck Regulators 3V to 42V Input Voltage Range Output Currents Up to 2.5A and 1.5A One Low Voltage Synchronous Buck Regulator 2.6V to 5.5V Input Voltage Range Output Currents Up to 1.8A One Boost Controller Allows Buck Converters to Regulate with VBATT << VOUT Selectable Burst Mode® Operation Allows Low 28µA IQ with High Voltage Channels Active Programmable Power-On Reset Individual Channel Power Good Indicators Step-Down Switching Frequency: 250kHz to 2.2MHz Available in 40-Lead QFN (6mm × 6mm) Package AEC-Q100 Qualified for Automotive Applications

42V, Low IQ, Quad Output Triple Monolithic Buck Converter and Boost Controller Features: Flexible Power Supply System Capable of Four Regulated Outputs with VBATT << VOUT Two High Voltage Synchronous Buck Regulators 3V to 42V Input Voltage Range Output Currents Up to 2.5A and 1.5A One Low Voltage Synchronous Buck Regulator 2.6V to 5.5V Input Voltage Range Output Currents Up to 1.8A One Boost Controller Allows Buck Converters to Regulate with VBATT << VOUT Selectable Burst Mode® Operation Allows Low 28µA IQ with High Voltage Channels Active Programmable Power-On Reset Individual Channel Power Good Indicators Step-Down Switching Frequency: 250kHz to 2.2MHz Available in 40-Lead QFN (6mm × 6mm) Package AEC-Q100 Qualified for Automotive Applications

42V, Low IQ, Quad Output Triple Monolithic Buck Converter and Boost Controller Features: Flexible Power Supply System Capable of Four Regulated Outputs with VBATT << VOUT Two High Voltage Synchronous Buck Regulators 3V to 42V Input Voltage Range Output Currents Up to 2.5A and 1.5A One Low Voltage Synchronous Buck Regulator 2.6V to 5.5V Input Voltage Range Output Currents Up to 1.8A One Boost Controller Allows Buck Converters to Regulate with VBATT << VOUT Selectable Burst Mode® Operation Allows Low 28µA IQ with High Voltage Channels Active Programmable Power-On Reset Individual Channel Power Good Indicators Step-Down Switching Frequency: 250kHz to 2.2MHz Available in 40-Lead QFN (6mm × 6mm) Package AEC-Q100 Qualified for Automotive Applications

42V, 750mA Synchronous Step-Down Regulator with 2.5A Quiescent Current Features: Wide Input Voltage Range: 3.0V to 42V Ultralow Quiescent Current Burst Mode® Operation: <3µA IQ Regulating 12VIN to 3.3VOUT Output Ripple <10mVP-P High Efficiency 2MHz Synchronous Operation >93% Efficiency at 0.5A, 12VIN to 5VOUT 750mA Maximum Continuous Output Fast Minimum Switch-On Time: 35ns Adjustable and Synchronizable: 200kHz to 2.2MHz Allows Use of Small Inductors Spread Spectrum Frequency Modulation for Low EMI Low Dropout Peak Current Mode Operation Accurate 1V Enable Pin Threshold Internal Compensation Output Soft-Start and Tracking Small Thermally Enhanced 10-Lead MSOP Package or 8-Lead 2mm × 2mm DFN Package AEC-Q100 Qualified for Automotive Applications

42V, 750mA Synchronous Step-Down Regulator with 2.5A Quiescent Current Features: Wide Input Voltage Range: 3.0V to 42V Ultralow Quiescent Current Burst Mode® Operation: <3µA IQ Regulating 12VIN to 3.3VOUT Output Ripple <10mVP-P High Efficiency 2MHz Synchronous Operation >93% Efficiency at 0.5A, 12VIN to 5VOUT 750mA Maximum Continuous Output Fast Minimum Switch-On Time: 35ns Adjustable and Synchronizable: 200kHz to 2.2MHz Allows Use of Small Inductors Spread Spectrum Frequency Modulation for Low EMI Low Dropout Peak Current Mode Operation Accurate 1V Enable Pin Threshold Internal Compensation Output Soft-Start and Tracking Small Thermally Enhanced 10-Lead MSOP Package or 8-Lead 2mm × 2mm DFN Package AEC-Q100 Qualified for Automotive Applications

42V, 750mA Synchronous Step-Down Regulator with 2.5A Quiescent Current Features: Wide Input Voltage Range: 3.0V to 42V Ultralow Quiescent Current Burst Mode® Operation: <3µA IQ Regulating 12VIN to 3.3VOUT Output Ripple <10mVP-P High Efficiency 2MHz Synchronous Operation >93% Efficiency at 0.5A, 12VIN to 5VOUT 750mA Maximum Continuous Output Fast Minimum Switch-On Time: 35ns Adjustable and Synchronizable: 200kHz to 2.2MHz Allows Use of Small Inductors Spread Spectrum Frequency Modulation for Low EMI Low Dropout Peak Current Mode Operation Accurate 1V Enable Pin Threshold Internal Compensation Output Soft-Start and Tracking Small Thermally Enhanced 10-Lead MSOP Package or 8-Lead 2mm × 2mm DFN Package AEC-Q100 Qualified for Automotive Applications

42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5A Quiescent Current Features: Silent Switcher® 2 Architecture Ultralow EMI Emissions on Any PCB Eliminates PCB Layout Sensitivity Internal Bypass Capacitors Reduce Radiated EMI Optional Spread Spectrum Modulation Wide Input Voltage Range: 3.0V to 42V Ultralow Quiescent Current Burst Mode® Operation: <2.5µA IQ Regulating 12VIN to 3.3VOUT Output Ripple <10mVP-P High Efficiency 2MHz Synchronous Operation: >93% Efficiency at 1A, 12VIN to 5VOUT 2A Maximum Continuous Output, 3A Peak Transient Output Fast Minimum Switch-On Time: 45ns Adjustable and Synchronizable: 200kHz to 2.2MHz Allows Use of Small Inductors Low Dropout Peak Current Mode Operation Internal Compensation Output Soft-Start and Tracking Small 16-Lead 3mm × 3mm LQFN Package AEC-Q100 Qualified for Automotive Applications

42V, 2.5A Synchronous Step-Down Regulator with 2.5A Quiescent Current Features: Wide Input Voltage Range: 3.4V to 42V Ultralow Quiescent Current Burst Mode® Operation: 2.5μA IQ Regulating 12VIN to 3.3VOUT Output Ripple < 10mVP-P High Efficiency Synchronous Operation: 96% Efficiency at 1A, 5VOUT from 12VIN 94% Efficiency at 1A, 3.3VOUT from 12VIN Fast Minimum Switch-On Time: 50ns Low Dropout Under All Conditions: 200mV at 1A Allows Use Of Small Inductors Low EMI Adjustable and Synchronizable: 200kHz to 2.2MHz Current Mode Operation Accurate 1V Enable Pin Threshold Internal Compensation Output Soft-Start and Tracking Small Thermally Enhanced 16-Lead MSOP Package AEC-Q100 Qualified for Automotive Applications

42V, 2.5A Synchronous Step-Down Regulator with Current Sense and 2.5A Quiescent Current Features: Rail-to-Rail Current Sense Amplifier with Monitor Wide Input Voltage Range: 3.4V to 42V Ultralow Quiescent Current Burst Mode® Operation: 2.5μA IQ Regulating 12VIN to 3.3VOUT Output Ripple < 10mVP-P High Efficiency Synchronous Operation: 96% Efficiency at 1A, 5VOUT from 12VIN 94% Efficiency at 1A, 3.3VOUT from 12VIN Fast Minimum Switch-On Time: 50ns Low Dropout Under All Conditions: 200mV at 1A Allows Use Of Small Inductors Low EMI Adjustable and Synchronizable: 200kHz to 2.2MHz Current Mode Operation Accurate 1V Enable Pin Threshold Internal Compensation Output Soft-Start and Tracking Small Thermally Enhanced 3mm × 5mm 24-Lead QFN Package AEC-Q100 Qualified for Automotive Applications

Low Input Voltage Current Mode Step-Down DC/DC Controller Features: High Efficiency Constant Frequency 550kHz Operation VIN Range: 2V to 10V Multiampere Output Currents OPTI-LOOP™ Compensation Minimizes COUT Selectable, Burst Mode Operation Low Dropout Operation: 100% Duty Cycle Synchronizable up to 750kHz Current Mode Operation for Excellent Line and Load Transient Response Low Quiescent Current: 350µA Shutdown Mode Draws Only 15µA Supply Current ±1.9% Reference Accuracy Available in 8-Lead MSOP

Multiphase Boost Converter Expander with Internal Gate Drivers Features: Expands Up to 4 Phases per Chip Up to 80V Input or Output Voltage Cascade with Multiple Chips for High Current Applications Supports Up to 18 Distinct Phases from 20° to 180° Phases Can Share Phase Angle Excellent DC and Transient Current Sharing Phase-Lockable Fixed Frequency 125kHz to 1MHz Supports Bidirectional Current Flow RSENSE or DCR Current Sensing Eliminates the Need to Route Sensitive Feedback and Control Signals. 52-Lead (7mm × 8mm) QFN Package

High Power Synchronous Switching Regulator Controller Features: High Power Buck Converter from 5V or 3.3V Input Adjustable Current Limit in S0-8 with Topside FET RDS(ON) Sensing No External Sense Resistor Required Hiccup Mode Current Limit Protection Adjustable, Fixed 1.9V, 2.5V, 2.8V and 3.3V Output All N-Channel MOSFET Synchronous Driver Excellent Output Regulation: ±2% over Line, Load and Temperature Variations High Efficiency: Over 95% Possible Fast Transient Response Fixed 300kHz Frequency Operation Internal Soft-Start Circuit Quiescent Current: 1mA; 45µA in Shutdown

Buffered Quad, 16-Bit, 350ksps/Ch Differential 10.24V ADC with 30VP-P Common Mode Range Features: Simultaneous Sampling of 4 Buffered Channels 350ksps per Channel Throughput 500pA/12nA Max Input Leakage at 85°C/125°C ±1LSB INL (Maximum, ±10.24V Range) Guaranteed 16-Bit, No Missing Codes Differential, Wide Common Mode Range Inputs Per-Channel SoftSpan Input Ranges: ±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V ±12.5V, 0V to 12.5V, ±6.25V, 0V to 6.25V 94.2dB Single-Conversion SNR (Typical) −110dB THD (Typical) at fIN = 2kHz 128dB CMRR (Typical) at fIN = 200Hz Rail-to-Rail Input Overdrive Tolerance Integrated Reference and Buffer (4.096V) SPI CMOS (1.8V to 5V) and LVDS Serial I/O Internal Conversion Clock, No Cycle Latency 175mW Power Dissipation (44mW/Ch Typical) 48-Lead (7mm x 7mm) LQFP Package

Buffered Dual, 16-Bit, 550ksps/Channel Differential 10.24V ADC with 30VP-P Common Mode Range Features: Simultaneous Sampling of 2 Buffered Channels 550ksps per Channel Throughput 500pA/12nA Max Input Leakage at 85°C/125°C ±1LSB INL (Maximum, ±10.24V Range) Guaranteed 16-Bit, No Missing Codes Differential, Wide Common Mode Range Inputs Per-Channel Soft-Span Input Ranges: ±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V ±12.5V, 0V to 12.5V, ±6.25V, 0V to 6.25V 94.2dB Single-Conversion SNR (Typical) −110dB THD (Typical) at fIN = 2kHz 124dB CMRR (Typical) at fIN = 200Hz Rail-to-Rail Input Overdrive Tolerance Integrated Reference and Buffer (4.096V) SPI CMOS (1.8V to 5V) and LVDS Serial I/O Internal Conversion Clock, No Cycle Latency 162mW Power Dissipation (Typical) 48-Lead (7mm × 7mm) LQFP Package

65V, 3.5A Synchronous Step-Down Silent Switcher with 2.5A Quiescent Current Features: Silent Switcher® Architecture Ultralow EMI Emissions Spread Spectrum Frequency Modulation High Efficiency at High Frequency Up to 95% Efficiency at 1MHz, 12VIN to 5VOUT Up to 94% Efficiency at 2MHz, 12VIN to 5VOUT Wide Input Voltage Range: 3V to 65V 3.5A Maximum Continuous Output, 5A Peak Transient Output Fast Minimum Switch-On Time: 35ns Ultralow Quiescent Current Burst Mode® Operation 2.5μA IQ Regulating 12VIN to 3.3VOUT Output Ripple < 10mVP-P Low Dropout Under All Conditions: 130mV at 1A Safely Tolerates Inductor Saturation in Overload Adjustable and Synchronizable: 200kHz to 3MHz Peak Current Mode Operation Output Soft-Start and Tracking Small 18-Lead 3mm × 4mm QFN AEC-Q100 Qualified for Automotive Applications

Dual Ideal Diode-OR and Single Hot Swap Controller with Current Monitor Features:Ideal Diode-OR and Inrush Current Control for Redundant SuppliesLow Loss Replacement for Power Schottky DiodesEnables Safe Board Insertion into a Live Backplane2.9V to 18V Operating RangeCurrent Monitor OutputControls N-Channel MOSFETsLimits Peak Fault Current in ≤ 1μsAdjustable Current Limit with FoldbackAdjustable Start-Up and Current Limit Fault Delay0.5μs Ideal Diode Turn-On and Turn-Off TimeSmooth Switchover without OscillationFault, Power Good and Diode Status OutputsLTC4236-1: Latch Off After FaultLTC4236-2: Automatic Retry After Fault28-Pin 4mm x 5mm QFN Package

65V, 2A Synchronous Step-Down Regulator with 2.5A Quiescent Current Features: Wide Input Voltage Range: 3.4V to 65V Ultralow Quiescent Current Burst Mode® Operation: 2.5μA IQ Regulating 12VIN to 3.3VOUT  Output Ripple < 10mVP-P High Efficiency Synchronous Operation: 94% Efficiency at 1A, 12VIN to 5VOUT 92% Efficiency at 1A, 12VIN to 3.3VOUT Fast 30ns Minimum Switch-On Time Low Dropout Under All Conditions: 250mV at 1A Safely Tolerates Inductor Saturation in Overload Low EMI Adjustable and Synchronizable: 200kHz to 2.2MHz Accurate 1V Enable Pin Threshold Internal Compensation Output Soft-Start and Tracking Small Thermally Enhanced 16-Lead MSOP and 24-Lead 3mm × 5mm QFN Packages

18V/16A Step-Down Silent Switcher 3 with Ultralow Noise Features: Silent Switcher®3 Architecture Ultralow RMS Noise (10Hz to 100kHz): 4μVRMS Ultralow Spot Noise: 4nV/√Hz at 10kHz Ultralow EMI Emissions on Any PCB Internal Bypass Capacitors Reduce Radiated EMI High Efficiency at High Frequency Ultrafast Transient Response with High Gain Error Amplifier Input Voltage Range: 2.8V to 18V 16A Maximum Continuous Output Current Fast Minimum Switch On-Time: 15ns Precision Reference: ±0.8% Over Temperature with Remote Sense PolyPhase® Operation: Up to 12 Phases Forced Continuous Mode Capability Adjustable and Synchronizable: 300kHz to 4MHz Programmable Power Good Small 24-Lead 4mm × 4mm LQFN Package

42V, 5A/7A Peak Synchronous Step-Down Silent Switcher with 2.5A Quiescent Current Features: Silent Switcher® Architecture Ultralow EMI Emissions Optional Spread Spectrum Modulation High Efficiency at High Frequency Up to 96% Efficiency at 1MHz, 12VIN to 5VOUT Up to 95% Efficiency at 2MHz, 12VIN to 5VOUT Wide Input Voltage Range: 3.4V to 42V 5A Maximum Continuous, 7A Peak Transient Output Ultralow Quiescent Current Burst Mode® Operation 2.5µA IQ Regulating 12VIN to 3.3VOUT Output Ripple < 10mVP-P Fast Minimum Switch On-Time: 30ns Low Dropout Under All Conditions: 100mV at 1A Forced Continuous Mode Adjustable and Synchronizable: 200kHz to 3MHz Output Soft-Start and Power Good Small 20-Lead 4mm × 3mm LQFN Package AEC-Q100 Qualified for Automotive Applications