Low IQ, Dual 2-Phase Synchronous Step-Down Controller Features: Low Operating IQ: 170μA (One Channel On) Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V Wide VIN Range: 4V to 38V RSENSE or DCR Current Sensing Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise OPTI-LOOP® Compensation Minimizes COUT Phase-Lockable Frequency (75kHz-850kHz) Programmable Fixed Frequency (50kHz-900kHz) Selectable Continuous, Pulse-Skipping or Burst Mode® Operation at Light Loads Very Low Dropout Operation: 99% Duty Cycle Adjustable Output Voltage Soft-Start Power Good Output Voltage Monitor Output Overvoltage Protection Output Latch-Off Protection During Short Circuit Low Shutdown IQ: 8μA Internal LDO Powers Gate Drive from VIN or EXTVCC No Current Foldback During Start-Up Small 5mm × 5mm QFN Package

Fast, Accurate, 2-Phase, Single-Output Step-Down DC/DC Controller with Differential Output Sensing Features: Wide VIN Range: 4.5V to 38V, VOUT: 0.6V to 5.5V ±0.67% Output Voltage Accuracy Over Temperature, Differential Output Voltage Sensing, Allowing Up to ±500mV Line Loss at Remote Ground Controlled On-Time, Valley Current Mode Control Fast Load Transient Response Detect Transient (DTR) Reduces VOUT Overshoot Frequency Programmable from 200kHz to 2MHz, Synchronizable to External Clock tON(MIN) = 30ns, tOFF(MIN) = 90ns Up to 12-Phase Operation RSENSE or Inductor DCR Current Sensing Overvoltage Protection and Current Limit Foldback Power Good Output Voltage Monitor Output Voltage Tracking and Adjustable Soft Start-Up Thermally Enhanced 32-Pin (5mm × 5mm) QFN Package

15A DC/DC Module (Power Module) Regulator Features: Complete 15A Switch Mode Power Supply Wide Input Voltage Range: 4.5V to 20V 0.6V to 5V Output Range ±1.5% Total DC Output Error Differential Remote Sense Amplifier for Precision Regulation Current Mode Control/Fast Transient Response Frequency Synchronization Parallel Current Sharing (Up to 60A) Selectable Pulse-Skipping or Burst Mode® Operation Soft-Start/Voltage Tracking Up to 93% Efficiency (12VIN, 3.3VOUT) Overcurrent Foldback Protection Output Overvoltage Protection Small Surface Mount Footprint, Low Profile 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA Packages

Dual-Input Power Manager/3.5A LiFePO4 Battery Charger with I2C Control and USB OTG Features:High Efficiency Charger Capable of 3.5A Charge CurrentCharge Control Algorithm Specifically Designed for LiFePO4 Batteries (Lithium Iron Phosphate)Monolithic Switching Regulator Makes Optimal Use of Limited Power and Thermal BudgetDual Input Overvoltage Protection ControllerPriority Multiplexing for Multiple InputsI2C/SMBus Control and Status FeedbackNTC Thermistor ADC for Temperature Dependent Charge Algorithms (JEITA)Instant-On Operation with Low BatteryBattery Ideal Diode Controller for Power ManagementUSB On-The-Go Power Delivery to the USB PortFour Float Voltage Settings (3.45V, 3.55V, 3.6V, 3.8V)28-Lead 4mm × 5mm QFN Package

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

20A DC/DC Module (Power Module) Step-Down Regulator Features: Complete 20A Switch Mode Power Supply 4.5V to 20V Input Voltage Range 0.6V to 5.5V Output Voltage Range ±1.5% Total DC Output Voltage Error (–40°C to 125°C) Differential Remote Sense Amplifier for Precision Regulation for (VOUT ≤ 3.3V) Current Mode Control/Fast Transient Response Parallel Current Sharing (Up to 80A) Frequency Synchronization Selectable Pulse-Skipping or Burst Mode® Operation Soft-Start/Voltage Tracking Up to 88% Efficiency (12VIN, 1.8VOUT) Overcurrent Foldback Protection Output Overvoltage Protection Internal Temperature Monitor Overtemperature Protection 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA Packages SnPb (BGA) or RoHS Compliant (LGA and BGA) Finish

4.5A, 500kHz Step-Down Switching Regulator Features: Constant 500kHz Switching Frequency High Power 16-Pin TSSOP Package Available Uses All Surface Mount Components Inductor Size Reduced to 1.8µH Saturating Switch Design: 0.07 Effective Supply Current: 2.5mA Shutdown Current: 20µA Cycle-by-Cycle Current Limiting Easily Synchronizable

20V, 5A Synchronous Step-Down Regulator Features: High Efficiency: Up to 96% 5A Output Current 4V to 20V VIN Range Integrated Power N-Channel MOSFETs (70mΩ Top and 35mΩ Bottom) Adjustable Frequency 800kHz to 4MHz PolyPhase® Operation (Up to 12 Phases) Output Tracking 0.6V ±1% Reference Accuracy Current Mode Operation for Excellent Line and Load Transient Response Shutdown Mode Draws Less Than 15μA Supply Current LTC3605: 15V Absolute Maximum VIN LTC3605A: 22V Absolute Maximum VIN The LTC3605A Is Pin Compatible with the LTC3605 Available in 24-Pin (4mm × 4mm) QFN Package

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

60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller Features: Wide VIN Range: 4.5V to 60V (65V Abs Max) Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 99% • VIN Adjustable Gate Drive Level 5V to 10V (OPTI-DRIVE) No External Bootstrap Diodes Required Low Operating IQ: 29μA (One Channel On) Selectable Gate Drive UVLO Thresholds Out-of-Phase Operation Reduces Required Input Capacitance and Power Supply Induced Noise Phase-Lockable Frequency: 75kHz to 850kHz Selectable Continuous, Pulse Skipping or Low Ripple Burst Mode® Operation at Light Loads Selectable Current Limit (LTC3892/LTC3892-2) Very Low Dropout Operation: 99% Duty Cycle Power Good Output Voltage Monitors (LTC3892/LTC3892-2) Low Shutdown IQ: 3.6μA Small 32-Lead 5mm × 5mm QFN Package (LTC3892/LTC3892-2) or TSSOP Package (LTC3892-1)