42V, 6A Synchronous Step-Down Regulator with 3A Quiescent Current Features: Wide Input Voltage Range: 3.4V to 42V Ultralow Quiescent Current Burst Mode® Operation: 3μA IQ Regulating 12VIN to 3.3VOUT Output Ripple < 10mVP-P High Efficiency Synchronous Operation: 95% Efficiency at 3A, 5VOUT from 12VIN 94% Efficiency at 3A, 3.3VOUT from 12VIN Fast Minimum Switch-On-Time: 40ns Low Dropout Under All Conditions: 250mV at 3A Allows Use Of Small Inductors Safely Tolerates Inductor Saturation in Overload Conditions 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 × 6mm 28-Lead QFN Package AEC-Q100 Qualified for Automotive Applications

High Current Hot Swap Controller with I2C Compatible Monitoring Features: Allows Safe Board Insertion Into Live Backplane 12-/16-Bit ADC with ±0.9% Total Unadjusted Error Monitors Current, Voltage, Power and Energy Controls Two Parallel N-Channel MOSFETs for SOA Sharing in High Current Applications Internal EEPROM for Nonvolatile Configuration Wide Operating Voltage Range: 2.9V to 33V I2C/SMBus Digital Interface (Coexists with PMBus Devices) 12V Gate Drive for Lower MOSFET RDS(ON) Programmable Current Limit with 2% Accuracy MOSFET Power Limiting with Current Foldback Continuously Monitors MOSFET Health Stores Minimum and Maximum Measurements Alerts When Alarm Thresholds Exceeded Input Overvoltage and Undervoltage Protection Internal ±5% or External Timebases 32-Pin 5mm × 5mm QFN Package AEC-Q100 Qualified for Automotive Applications

8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement Features: Sequence, Trim, Margin and Supervise Eight Power Supplies Manage Faults, Monitor Telemetry and Create Fault Logs PMBus™ Compliant Command Set Supported by LTpowerPlay® GUI Margin or Trim Supplies to Within 0.25% of Target Fast OV/UV Supervisors Per Channel Coordinate Sequencing and Fault Management Across Multiple LTC PSM Devices Automatic Fault Logging to Internal EEPROM Operate Autonomously without Additional Software Internal Temperature and Input Voltage Supervisors Accurate Monitoring of Eight Output Voltages, Input Voltage and Internal Die Temperature I2C/SMBus Serial Interface Can Be Powered from 3.3V, or 4.5V to 15V Programmable Watchdog Timer 100% Pin-Compatible Upgrade to the LTC2978/LTC2978A Available in 64-Pin 9mm × 9mm QFN PackageAEC-Q100 Qualified for Automotive Applications

35V/3.2A Multi-Cell Lithium-Ion Step-Down Battery Charger with PowerPath and I2C Telemetry Features: Li-Ion/Polymer Battery Charger with Termination Wide Charging Input Voltage Range: 4.5V to 35V High Efficiency Synchronous Operation 16-Bit Digital Telemetry System Monitors VBAT, IBAT, RBAT, TBAT, TDIE, VIN, IIN, VOUT Charges 1-8 Lithium-Ion/Polymer Cells Input Undervoltage Charge Current Limit Loop Input MPPT for Solar Panel Inputs Input Current Limit Prioritizes System Load Output Low Loss PowerPath™ Instant-On Operation with Discharged or Missing Battery JEITA Temperature Controlled Charging Pin Compatible with LiFePO4 and SLA Versions

55V Buck-Boost Multi-Chemistry Battery Charger Features: Wide Voltage Range: 4.5V to 55V Input, Up to 55V Output (60V Absolute Maximums) Synchronous Buck-Boost DC/DC Controller Li-Ion and Lead-Acid Charge Algorithms ±0.5% Float Voltage Accuracy ±5% Charge Current Accuracy Instant-On for Heavily Discharged Batteries Ideal Diode Controller Provides Low Loss PowerPath When Input Power is Limited Input Voltage Regulation for High Impedance Input Supplies and Solar Panel Peak Power Operation Onboard Timer for Protection and Termination Bad Battery Detection with Auto-Reset NTC Input for Temperature Qualified Charging Binary Coded Open-Collector Status Pins Low Profile (0.75mm) 38-Pin 5mm × 7mm QFN Package

Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Life Extender Features: Dual Input, Single Output DC/DCs with Input Prioritizer Energy Harvesting Input: 3.0V to 19V Buck DC/DC Primary Cell Input: 1.8V to 5.5V Buck-Boost DC/DC Zero Battery IQ When Energy Harvesting Source is Available Ultralow Quiescent Current: 750nA at No-Load Low Noise LDO Post Regulator Integrated Supercapacitor Balancer Up to 50mA of Output Current Programmable DC/DC and LDO Output Voltages, Buck UVLO, and Buck-Boost Peak Input Current Integrated Low Loss Full-Wave Bridge Rectifier Input Protective Shunt: Up to 25mA at VIN ≥ 20V 5mm × 5mm QFN-32 Package

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

10A Guaranteed SOA Hot Swap Controller Features:Allows Safe Board Insertion into a Live BackplaneSmall Footprint10mΩ MOSFET Including RSENSESafe Operating Area Guaranteed at 41W, 30msWide Operating Voltage Range: 2.9V to 15VAdjustable, 11% Accurate Current LimitCurrent and Temperature Monitor OutputsOvertemperature ProtectionAdjustable Current Limit Timer Before FaultPower Good and Fault OutputsAdjustable Inrush Current Control2.5% Accurate Undervoltage and Overvoltage ProtectionAvailable in 38-Lead (5mm × 9mm) QFN PackagePin Compatible with LTC4234

55V Buck-Boost Multi-Chemistry Battery Charger Features: Wide Voltage Range: 4.5V to 55V Input, Up to 55V Output (60V Absolute Maximums) Synchronous Buck-Boost DC/DC Controller Li-Ion and Lead-Acid Charge Algorithms ±0.5% Float Voltage Accuracy ±5% Charge Current Accuracy Instant-On for Heavily Discharged Batteries Ideal Diode Controller Provides Low Loss PowerPath When Input Power is Limited Input Voltage Regulation for High Impedance Input Supplies and Solar Panel Peak Power Operation Onboard Timer for Protection and Termination Bad Battery Detection with Auto-Reset NTC Input for Temperature Qualified Charging Binary Coded Open-Collector Status Pins Low Profile (0.75mm) 38-Pin 5mm × 7mm QFN Package

Dual 42V Synchronous Monolithic Step-Down Regulator with 6.5A Quiescent Current Features: Wide Input Voltage Range: 3.4V to 42V 2.5A and 1.5A Buck Regulators with Separate Inputs Fast Minimum Switch On-Time: 35ns Ultralow Quiescent Current Burst Mode® Operation: 6.5μA IQ Regulating 12VIN to 5VOUT and 3.3VOUT Output Ripple < 15mV 180° Out of Phase Switching Adjustable: 200kHz to 3MHz Synchronizable: 250kHz to 3MHz Accurate 1V Enable Pin Thresholds Internal Compensation Output Soft-Start and Tracking TSSOP Package: Output Stays at or Below Regulation Voltage During Adjacent Pin Short or When a Pin Is Left Floating Thermally Enhanced 28-Lead TSSOP and 3mm × 6mm QFN Packages