Monolithic Dual Tracking 3.5A Step-Down Switching Regulator Features: Wide Input Range: Operation from 3V to 36V OVLO Protects Circuit Through 60V Transients Independent Supply, Shutdown, Soft-Start, Programmable Current Limit and Programmable Power Good for Each 3.5A Regulator Die Temperature Monitor Adjustable/Synchronizable Fixed Frequency Operation from 250kHz to 2.25MHz with Synchronized Clock Output Independent Synchronized Switching Frequencies Optimize Component Size Antiphase Switching Outputs Can Be Paralleled Flexible Output Voltage Tracking Enhanced Short-Circuit Protection Low Dropout: 95% Maximum Duty Cycle 5mm × 5mm QFN Package

Monolithic Dual Tracking 3.5A Step-Down Switching Regulator Features: Wide Input Range: Operation from 3V to 36V OVLO Protects Circuit Through 60V Transients Independent Supply, Shutdown, Soft-Start, Programmable Current Limit and Programmable Power Good for Each 3.5A Regulator Die Temperature Monitor Adjustable/Synchronizable Fixed Frequency Operation from 250kHz to 2.25MHz with Synchronized Clock Output Independent Synchronized Switching Frequencies Optimize Component Size Antiphase Switching Outputs Can Be Paralleled Flexible Output Voltage Tracking Enhanced Short-Circuit Protection Low Dropout: 95% Maximum Duty Cycle 5mm × 5mm QFN Package

36V, 2.6A Monolithic Buck Regulator With Dual LDO Features: Wide Input Range: 4V to 36V Overvoltage Shutdown Protects Circuit Through 70V Transients 2.6A Output Switching Regulator with Internal Power Switch Dual, Low Dropout, Linear Regulator Controllers with Programmable Current Limit Tracking/Soft-Start Inputs and Power Good Output Simplify Soft-Start and Supply Sequencing Uses Small Inductors and Ceramic Capacitors VOUT(MIN) = 0.75V (Buck and LDOs) Adjustable 250kHz to 2.5MHz Switching Frequency Accurate Enable Threshold Allows User Programmable Undervoltage Lockout Options for Clock Synchronization (LT3694) or Clock Output to Enable Synchronization to Other Switching Regulators (LT3694-1) Thermally Enhanced 28-Lead 4mm × 5mm QFN and 20-Lead TSSOP Packages

36V, 2.6A Monolithic Buck Regulator With Dual LDO Features: Wide Input Range: 4V to 36V Overvoltage Shutdown Protects Circuit Through 70V Transients 2.6A Output Switching Regulator with Internal Power Switch Dual, Low Dropout, Linear Regulator Controllers with Programmable Current Limit Tracking/Soft-Start Inputs and Power Good Output Simplify Soft-Start and Supply Sequencing Uses Small Inductors and Ceramic Capacitors VOUT(MIN) = 0.75V (Buck and LDOs) Adjustable 250kHz to 2.5MHz Switching Frequency Accurate Enable Threshold Allows User Programmable Undervoltage Lockout Options for Clock Synchronization (LT3694) or Clock Output to Enable Synchronization to Other Switching Regulators (LT3694-1) Thermally Enhanced 28-Lead 4mm × 5mm QFN and 20-Lead TSSOP Packages

36V, 2.6A Monolithic Buck Regulator With Dual LDO Features: Wide Input Range: 4V to 36V Overvoltage Shutdown Protects Circuit Through 70V Transients 2.6A Output Switching Regulator with Internal Power Switch Dual, Low Dropout, Linear Regulator Controllers with Programmable Current Limit Tracking/Soft-Start Inputs and Power Good Output Simplify Soft-Start and Supply Sequencing Uses Small Inductors and Ceramic Capacitors VOUT(MIN) = 0.75V (Buck and LDOs) Adjustable 250kHz to 2.5MHz Switching Frequency Accurate Enable Threshold Allows User Programmable Undervoltage Lockout Options for Clock Synchronization (LT3694) or Clock Output to Enable Synchronization to Other Switching Regulators (LT3694-1) Thermally Enhanced 28-Lead 4mm × 5mm QFN and 20-Lead TSSOP Packages

36V, 2.6A Monolithic Buck Regulator With Dual LDO Features: Wide Input Range: 4V to 36V Overvoltage Shutdown Protects Circuit Through 70V Transients 2.6A Output Switching Regulator with Internal Power Switch Dual, Low Dropout, Linear Regulator Controllers with Programmable Current Limit Tracking/Soft-Start Inputs and Power Good Output Simplify Soft-Start and Supply Sequencing Uses Small Inductors and Ceramic Capacitors VOUT(MIN) = 0.75V (Buck and LDOs) Adjustable 250kHz to 2.5MHz Switching Frequency Accurate Enable Threshold Allows User Programmable Undervoltage Lockout Options for Clock Synchronization (LT3694) or Clock Output to Enable Synchronization to Other Switching Regulators (LT3694-1) Thermally Enhanced 28-Lead 4mm × 5mm QFN and 20-Lead TSSOP Packages

36V, 2.6A Monolithic Buck Regulator With Dual LDO Features: Wide Input Range: 4V to 36V Overvoltage Shutdown Protects Circuit Through 70V Transients 2.6A Output Switching Regulator with Internal Power Switch Dual, Low Dropout, Linear Regulator Controllers with Programmable Current Limit Tracking/Soft-Start Inputs and Power Good Output Simplify Soft-Start and Supply Sequencing Uses Small Inductors and Ceramic Capacitors VOUT(MIN) = 0.75V (Buck and LDOs) Adjustable 250kHz to 2.5MHz Switching Frequency Accurate Enable Threshold Allows User Programmable Undervoltage Lockout Options for Clock Synchronization (LT3694) or Clock Output to Enable Synchronization to Other Switching Regulators (LT3694-1) Thermally Enhanced 28-Lead 4mm × 5mm QFN and 20-Lead TSSOP Packages

Secondary Side Synchronous Post Regulator Features: Generates a Regulated Auxiliary Output in Isolated DC/DC Converters 0.8V ±1.5% Accurate Voltage Reference Dual N-Channel MOSFET Synchronous Drivers High Switching Frequency: Up to 500kHz Programmable Current Limit Protection Programmable Soft-Start Automatic Frequency Synchronization Small 16-Pin Thermally Enhanced TSSOP Package

High Voltage, Current Mode Switching Regulator Controller Features: Wide Input Range: 4V to 60V Output Voltages up to 36V (Step-Down) Burst Mode Operation: <100µA Supply Current 10µA Shutdown Supply Current ±1.3% Reference Accuracy 200kHz Fixed Frequency Drives N-Channel MOSFET Programmable Soft-Start Programmable Undervoltage Lockout Internal High Voltage Regulator for Gate Drive Thermal Shutdown Current Limit Unaffected by Duty Cycle 16-Pin Thermally Enhanced TSSOP Package

Dual, 2-Phase Step-Down Switching Controller Features: Wide Input Voltage Range: 4V to 30V Wide Output Voltage Range: 0.8V to VIN Low Shutdown IQ: 20μA Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise 0.8V ±1.5% Voltage Reference 500kHz Current Mode Fixed Frequency Operation Internal Boost Converter Provides Bias Rail for N-Channel MOSFET Gate Drive Power Good Voltage Monitor for Each Output Programmable Soft-Start 24-Lead 4mm × 4mm × 0.75mm Package

60V, 3A, 2MHz Step-Down Switching Regulator with 2.7A Quiescent Current Features: Ultralow Quiescent Current: 2.7μA IQ at 12VIN to 3.3VOUT  Low Ripple Burst Mode® Operation Output Ripple < 15mVP-P  Wide Input Range: Operation from 4.3V to 60V  3A Maximum Output Current  Excellent Start-Up and Dropout Performance  Adjustable Switching Frequency: 200kHz to 2MHz  Synchronizable Between 250kHz to 2MHz  Accurate Programmable Undervoltage Lockout  Low Shutdown Current: IQ = 700nA  Power Good Flag  Soft-Start Capability  Thermal Shutdown Protection  Current Limit Foldback with SS Override  Saturating Switch Design: 85mΩ On Resistance  Small, Thermally Enhanced 16-Lead MSOP Package

36V, 1.5A Negative Linear Regulator with Programmable Current Limit Features:Output Current: 1.5ASingle Resistor Sets Output Voltage50μA SET Pin Current: ±1% Initial AccuracyProgrammable Current LimitPositive or Negative Output Current MonitorParallelable for Higher Current and Heat SpreadingLow Dropout Voltage: 300mVLow Output Noise: 18μVRMS (10Hz to 100kHz)Configurable as a 3-Terminal Floating RegulatorWide Input Voltage Range: –1.5V to –36VRail-to-Rail Output Voltage Range: 0V to –32VPositive/Negative Shutdown Logic or UVLOProgrammable Cable Drop CompensationLoad Regulation: 1.2mV (1mA to 1.5A)Stable with 10μF Minimum Output CapacitorStable with Ceramic or Tantalum CapacitorsThermally Enhanced 14-Lead 4mm × 3mm DFN, 16-Lead TSSOP, 7-Lead TO-220 and DD Packages

1.5ppm/C Drift, Low Noise, Buffered Reference Features: Low Drift A Grade: 1.5ppm/°C Max B Grade: 3ppm/°C Max Low Noise: 0.5ppmP-P (0.1Hz to 10Hz) 0.8ppmRMS (10Hz to 1kHz) Wide Supply Range to 40V Sources and Sinks 10mA Min Line Regulation: 0.2ppm/V Load Regulation: 2μV/mA Reverse Supply Protection Reverse Output Protection Low Power Shutdown: <4μA Max 1.5V Min Supply for 1.25V Option Thermal Protection Can Operate in Shunt Mode Configurable as a Negative Reference Available Output Voltage Options: 1.25V, 2.5V, 3V, 4.096V, 5V MSOP-8 Package

1.5ppm/C Drift, Low Noise, Buffered Reference Features: Low Drift A Grade: 1.5ppm/°C Max B Grade: 3ppm/°C Max Low Noise: 0.5ppmP-P (0.1Hz to 10Hz) 0.8ppmRMS (10Hz to 1kHz) Wide Supply Range to 40V Sources and Sinks 10mA Min Line Regulation: 0.2ppm/V Load Regulation: 2μV/mA Reverse Supply Protection Reverse Output Protection Low Power Shutdown: <4μA Max 1.5V Min Supply for 1.25V Option Thermal Protection Can Operate in Shunt Mode Configurable as a Negative Reference Available Output Voltage Options: 1.25V, 2.5V, 3V, 4.096V, 5V MSOP-8 Package

Precision Dual Output, High Current, Low Noise, Voltage Reference Features: Dual Output Tracking Reference Each Output Configurable to 6V Output 1: 150mA Source/20mA Sink Output 2: 50mA Source/20mA Sink Low Drift: A-Grade: 10ppm/°C Max B-Grade: 20ppm/°C Max High Accuracy: A-Grade: ±0.05% Max B-Grade: ±0.1% Max Low Noise: 1.5ppmP-P (0.1Hz to 10Hz) Wide Operating Voltage Range to 36V Load Regulation: 0.25µV/mA AC PSRR: 96dB at 10kHz Kelvin Sense Connection on Outputs Thermal Shutdown Separate Supply Pins for Each Output Available Output Voltage Options: 1.2V, 1.8V, 2.5V, 3V, 3.3V, 5V. All Options are Adjustable Available in Exposed Pad Package MSE16 and 4mm × 3mm DFN

Precision Dual Output, High Current, Low Noise, Voltage Reference Features: Dual Output Tracking Reference Each Output Configurable to 6V Output 1: 150mA Source/20mA Sink Output 2: 50mA Source/20mA Sink Low Drift: A-Grade: 10ppm/°C Max B-Grade: 20ppm/°C Max High Accuracy: A-Grade: ±0.05% Max B-Grade: ±0.1% Max Low Noise: 1.5ppmP-P (0.1Hz to 10Hz) Wide Operating Voltage Range to 36V Load Regulation: 0.25µV/mA AC PSRR: 96dB at 10kHz Kelvin Sense Connection on Outputs Thermal Shutdown Separate Supply Pins for Each Output Available Output Voltage Options: 1.2V, 1.8V, 2.5V, 3V, 3.3V, 5V. All Options are Adjustable Available in Exposed Pad Package MSE16 and 4mm × 3mm DFN

Precision Dual Output, High Current, Low Noise, Voltage Reference Features: Dual Output Tracking Reference Each Output Configurable to 6V Output 1: 150mA Source/20mA Sink Output 2: 50mA Source/20mA Sink Low Drift: A-Grade: 10ppm/°C Max B-Grade: 20ppm/°C Max High Accuracy: A-Grade: ±0.05% Max B-Grade: ±0.1% Max Low Noise: 1.5ppmP-P (0.1Hz to 10Hz) Wide Operating Voltage Range to 36V Load Regulation: 0.25µV/mA AC PSRR: 96dB at 10kHz Kelvin Sense Connection on Outputs Thermal Shutdown Separate Supply Pins for Each Output Available Output Voltage Options: 1.2V, 1.8V, 2.5V, 3V, 3.3V, 5V. All Options are Adjustable Available in Exposed Pad Package MSE16 and 4mm × 3mm DFN

Precision Dual Output, High Current, Low Noise, Voltage Reference Features: Dual Output Tracking Reference Each Output Configurable to 6V Output 1: 150mA Source/20mA Sink Output 2: 50mA Source/20mA Sink Low Drift: A-Grade: 10ppm/°C Max B-Grade: 20ppm/°C Max High Accuracy: A-Grade: ±0.05% Max B-Grade: ±0.1% Max Low Noise: 1.5ppmP-P (0.1Hz to 10Hz) Wide Operating Voltage Range to 36V Load Regulation: 0.25µV/mA AC PSRR: 96dB at 10kHz Kelvin Sense Connection on Outputs Thermal Shutdown Separate Supply Pins for Each Output Available Output Voltage Options: 1.2V, 1.8V, 2.5V, 3V, 3.3V, 5V. All Options are Adjustable Available in Exposed Pad Package MSE16 and 4mm × 3mm DFN

Precision Dual Output, High Current, Low Noise, Voltage Reference Features: Dual Output Tracking Reference Each Output Configurable to 6V Output 1: 150mA Source/20mA Sink Output 2: 50mA Source/20mA Sink Low Drift: A-Grade: 10ppm/°C Max B-Grade: 20ppm/°C Max High Accuracy: A-Grade: ±0.05% Max B-Grade: ±0.1% Max Low Noise: 1.5ppmP-P (0.1Hz to 10Hz) Wide Operating Voltage Range to 36V Load Regulation: 0.25µV/mA AC PSRR: 96dB at 10kHz Kelvin Sense Connection on Outputs Thermal Shutdown Separate Supply Pins for Each Output Available Output Voltage Options: 1.2V, 1.8V, 2.5V, 3V, 3.3V, 5V. All Options are Adjustable Available in Exposed Pad Package MSE16 and 4mm × 3mm DFN

Precision Dual Output, High Current, Low Noise, Voltage Reference Features: Dual Output Tracking Reference Each Output Configurable to 6V Output 1: 150mA Source/20mA Sink Output 2: 50mA Source/20mA Sink Low Drift: A-Grade: 10ppm/°C Max B-Grade: 20ppm/°C Max High Accuracy: A-Grade: ±0.05% Max B-Grade: ±0.1% Max Low Noise: 1.5ppmP-P (0.1Hz to 10Hz) Wide Operating Voltage Range to 36V Load Regulation: 0.25µV/mA AC PSRR: 96dB at 10kHz Kelvin Sense Connection on Outputs Thermal Shutdown Separate Supply Pins for Each Output Available Output Voltage Options: 1.2V, 1.8V, 2.5V, 3V, 3.3V, 5V. All Options are Adjustable Available in Exposed Pad Package MSE16 and 4mm × 3mm DFN