60V PolyPhase Synchronous Boost Controller with PassThru Features:PolyPhase® Operation Reduces Required Input and Output Capacitance and Power Supply Induced NoiseSynchronous Operation for Highest Efficiency and Reduced Heat DissipationWide VIN Range: 4.5V to 60V (65V Abs Max); Operates Down to 2.3V After Start-UpOutput Voltage Up to 60V±1% 1.200V Reference VoltageRSENSE or Inductor DCR Current Sensing100% Duty Cycle Capability for Synchronous MOSFETLow Quiescent Current: 28μAPhase-Lockable Frequency (75kHz to 850kHz)Programmable Fixed Frequency (50kHz to 900kHz)Power Good Output Voltage MonitorLow Shutdown Current, IQ < 4μAInternal LDO Powers Gate Drive from VBIAS or EXTVCCThermally Enhanced Low Profile 28-Pin 4mm × 5mm QFN Package and Narrow SSOP Package

Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management Features: PMBus/I2C Compliant Serial Interface Telemetry Read Back includes VIN, IIN, VOUT, IOUT, Temperature and Faults Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, Margining, OV/UV and Frequency Synchronization (250kHz to 1MHz) ±0.5% Output Voltage Accuracy Over Temperature Integrated 16-Bit ADC Internal EEPROM with ECC and Fault Logging Integrated Powerful N-Channel MOSFET Gate Drivers Power Conversion Wide VIN Range: 4.5V to 24V VOUT Range: 0.5V to 5.4V (4V on VOUT0) Analog Current Mode Control Loop Accurate PolyPhase® Current Sharing for Up to 6 Phases Available in a 40-Pin (6mm × 6mm) QFN Package AEC-Q100 Qualified for Automotive Applications

Backup Battery Controller with Fixed Output Features: Not Recommended For New Designs. Contact Analog Devices for Potential Replacement. Complete Battery Backup System in an SO-8, 16-Pin GN or SO Package Generates Fixed Backup Voltage (3.07V/4.63V) from a Single 1.2V NiCd Button Cell Automatic Main Supply to Backup Switching Minimum 100mW Output Power Automatic Fast Recharge of NiCd Battery Programmable NiCd Trickle Charge Current Smart NiCd Charger Minimizes Recharge Time and Maximizes System Efficiency After Backup Onboard Power-Up and Push-Button Reset Generator Performs VCC Supervisory Functions Reset Assertion Guaranteed at VCC = 1V Short-Circuit Protection Thermal Limiting

0.25ppm Noise, Low Drift Precision References Features: Low Noise: 0.25ppmP-P (0.1Hz to 10Hz) 625nVP-P for the LTC6655-2.5 0.21ppmRMS (10Hz to 1kHz) for the LTC6655LN CNR = 100µF Low Drift: 2ppm/°C Max High Accuracy: ±0.025% Max No Humidity Sensitivity (LS8 Package) Thermal Hysteresis (LS8): 30ppm (–40°C to 85°C) Long-Term Drift (LS8): 20ppm/√kHr 100% Tested at –40°C, 25°C and 125°C Load Regulation: <10ppm/mA Sinks and Sources Current: ±5mA Low Dropout: 500mV Maximum Supply Voltage: 13.2V Low Power Shutdown: <20µA Max Available Output Voltages: 1.25V, 2.048V, 2.5V, 3V, 3.3V, 4.096V, 5V Available in an 8-Lead MSOP and High Stability Hermetic 5mm × 5mm LS8 Packages

Ultrathin 20VIN, 3A Step-Down DC/DC Module (Power Module) Regulator Features: <2mm Height, Complete Solution in <1cm2 (Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB) Wide Input Voltage Range: 4V to 20V Input Voltage Down to 2.375V with External Bias 0.6V to 5.5V Output Voltage 3A DC Output Current ±1.5% Maximum Total DC Output Voltage Error Current Mode Control, Fast Transient Response Low EMI EN55022 Class B Compliant External Frequency Synchronization Multiphase Operation with Current Sharing Output Voltage Tracking Selectable Discontinuous Mode Power Good Indicator Overvoltage, Overcurrent and Overtemperature Protection Ultrathin (6.25mm × 6.25mm × 1.82mm) LGA Package and (6.25mm × 6.25mm × 2.42mm) BGA Package

Ultralow Noise 1A Switching Regulator Features: Greatly Reduced Conducted and Radiated EMI (<100µVP-P in Typical Application) Low Switching Harmonic Content Independent Control of Switch Voltage and Current Slew Rates Two 1A Current Limited Power Switches Regulates Positive and Negative Voltages 20kHz to 250kHz Oscillator Frequency Easily Synchronized to External Clock Wide Input Voltage Range: 2.7V to 23V Low Shutdown Current: 12µA Typical Easier Layout than with Conventional Switchers Outputs Can Be Forced to 50% Duty Cycle for Unregulated Applications

500kHz and 1MHz High Efficiency 1.5A Switching Regulators Features: Faster Switching with Increased Efficiency Uses Small Inductors: 4.7µH All Surface Mount Components Only 0.5 Square Inch of Board Space Low Minimum Supply Voltage: 2.7V Quiescent Current: 4mA Typ Current Limited Power Switch: 1.5A Regulates Positive or Negative Outputs Shutdown Supply Current: 12µA Typ Easy External Synchronization 8-Pin SO or PDIP Packages

140V High Efficiency Switching Surge Stopper Features: VOUT Clamp Stops High Voltage Input Surges 100% Duty Cycle Pass-Through Mode During Normal Operation Switches During Overvoltage or Overcurrent Transients and Faults and During Startup High Efficiency Switching Enables Long Duration Surge Protection and High Output Currents Wide VIN Range: 4V to 140V (150V Abs Max) Adjustable Output Voltage Clamp Up to 60V Adjustable Output Overcurrent Protection RSENSE or Inductor DCR Current Sensing Power Inductor Reduces Input EMI in Normal Mode Adjustable Soft-Start for Inrush Current Limiting Programmable Fault Timer Open-Drain Fault Warning Indicator 2.7% Retry Duty Cycle During Faults Adjustable Switching Frequency: 50kHz to to 900kHz Adjustable Input Voltage Turn-On Threshold Adjustable Input Overvoltage Lockout Threshold 20-Pin 4mm × 5mm QFN and TSSOP Packages

Anyside High Voltage Isolated Switch Controller with I2C Command and Telemetry Features: CSA (IEC/UL) Approved, File #255632 Reinforced Insulation Integrated Isolated Power Supply Adjustable Turn-On Ramp Rate and Current Limit I2C/SMBus Interface 10-Bit ADC Monitors Current and Two Uncommitted Channels High Common Mode Transient Immunity: ≥ 30kV/μs Fault Status Alert and Power Good Outputs Independent 3V to 5.5V Logic Supply ±20kV ESD Across the Isolation Barrier Maximum Continuous Working Voltage: 690VRMS 14.6mm Creepage Distance Low Current Shutdown Mode (<10μA) 22mm × 9mm × 5.16mm BGA Package

40A DC/DC Module Regulator Features: Stacked Inductor Acts as Heat Sink Wide Input Voltage Range: 4.7V to 15V 0.6V to 3.3V Output Voltage Range ±1.3% Total DC Output Voltage Error Over Line, Load and Temperature (–40°C to 125°C) Differential Remote Sense Amplifier for Precision Regulation Current Mode Control/Fast Transient Response Frequency Synchronization Parallel Current Sharing (Up to 240A) Internal or External Compensation 88% Efficiency (12VIN, 1VOUT) at 40A Overcurrent Foldback Protection 16mm × 16mm × 7.07mm BGA Package