1.5A, 15V Monolithic Synchronous Step-Down Regulator Features: 4V to 15V Operating Input Voltage Range 1.5A Output Current Up to 96% Efficiency Very Low Duty Cycle Operation: 5% at 2.25MHz Adjustable Switching Frequency: 800kHz to 4MHz External Frequency Synchronization Current Mode Operation for Excellent Line and Load Transient Response User Selectable Burst Mode® (No Load IQ = 300μA) or Forced Continuous Operation 0.6V Reference Allows Low Output Voltages Short-Circuit Protected Output Voltage Tracking Capability Programmable Soft-Start Power Good Status Output Available in Small, Thermally Enhanced, 16-Pin QFN (3mm × 3mm) and MSOP Packages

Dual-Channel Hot Swap Controller/Power Sequencer Features: Allows Safe Board Insertion and Removal from a Live Backplane Programmable Power Supply Sequencing Programmable Electronic Circuit Breaker User-Programmable Supply Voltage Power-Up and Power-Down Rate High Side Drivers for External N-Channel FETs Controls Supply Voltages from 1.2V to 12V Ensures Proper Power-Up Behavior Undervoltage Lockout Glitch Filter Protects Against Spurious RESET Signals 8- and 14-Pin SO Packages

2-Phase, Dual Output Synchronous Boost Controller Features: Synchronous Operation for Highest Efficiency and Reduced Heat Dissipation Wide Input Range: 4.5V to 38V (40V Abs Max) and Operates Down to 2.5V After Start-Up Output Voltages Up to 60V ±1% 1.2V Reference Voltage RSENSE or Inductor DCR Current Sensing 100% Duty Cycle Capability for Synchronous MOSFET Low Quiescent Current: 125μA Phase-Lockable Frequency (75kHz to 850kHz) Programmable Fixed Frequency (50kHz to 900kHz) Selectable Current Limit Adjustable Output Voltage Soft-Start Power Good Output Voltage Monitors Low Shutdown Current IQ: <8μA Internal LDO Powers Gate Drive from VBIAS or EXTVCC Thermally Enhanced Low Profile 32-Pin 5mm × 5mm QFN Package

Low Quiescent Current High Efficiency Step-Down Converters Features: High Efficiency: Over 92% Possible Very Low Standby Current: 10µA Typ Available in Space Saving 8-Lead MSOP Package Internal 1.4 Power Switch (VIN = 10V) Wide VIN Range: 3V to 18V Operation Very Low Dropout Operation: 100% Duty Cycle Low-Battery Detector Functional During Shutdown Programmable Current Limit with Optional Current Sense Resistor (10mA to 400mA Typ) Short-Circuit Protection Few External Components Required Active Low Micropower Shutdown: IQ = 6µA Typ Pushbutton On/Off (LTC1475 Only) 3.3V, 5V and Adjustable Output Versions

Dual PowerPath Switch Driver Features: Power Path Management for Systems with Multiple DC Sources All N-Channel Switching to Reduce Power Losses and System Cost Switches and Isolates Sources Up to 30V Adaptive High Voltage Step-Up Regulator for N-Channel Gate Drive Capacitor Inrush and Short-Circuit Current Limited User-Programmable Timer to Limit Switch Dissipation Small Footprint: 16-Pin Narrow SSOP

400mA/800mA Synchronous Step-Down DC/DC with Average Input Current Limit Features: Programmable Average Input Current Limit: ±5% Accuracy Dual Step-Down Outputs: Up to 96% Efficiency Low Ripple (<25mVP-P) Burst Mode® Operation: IQ = 50μA Input Voltage Range: 2.5V to 5.5V Output Voltage Range: 0.6V to 5V 2.25MHz Constant-Frequency Operation Power Good Output Voltage Monitor for Each Channel Low Dropout Operation: 100% Duty Cycle Independent Internal Soft-Start for Each Channel Current Mode Operation for Excellent Line and Load Transient Response ±2% Output Voltage Accuracy Short-Circuit Protected Shutdown Current ≤ 1μA Available in Small Thermally Enhanced 10-Lead MSE and 3mm × 3mm DFN Packages

Battery Gas Gauge with Temperature, Voltage Measurement Features: Indicates Accumulated Battery Charge and Discharge High Accuracy Analog Integration ADC Measures Battery Voltage and Temperature Integrated Temperature Sensor High Side Sense 1% Voltage and Charge Accuracy ±50mV Sense Voltage Range SMBus/I2C Interface Configurable Alert Output/Charge Complete Input 2.7V to 5.5V Operating Range Quiescent Current Less than 100μA Small 6-Pin 2mm × 3mm DFN package

3-Phase, Single Output Synchronous Step-Down DC/DC Controller with Diffamp Features: Optional Nonlinear Control for Fast Response ±0.75%, 0.6V Reference Accuracy PWM, Stage Shedding™ or Burst Mode® Operation High Efficiency: Up to 95% RSENSE or DCR Current Sensing Programmable DCR Temperature Compensation Phase-Lockable Fixed Frequency: 250kHz to 770kHz True Remote Sense Differential Amplifier Programmable Active Voltage Positioning (AVP) Triple N-Channel MOSFET Synchronous Drive Wide VIN Range: 4.5V to 38V Operation VOUT Range: 0.6V to 5V without Diffamp VOUT Range: 0.6V to 3.3V with Diffamp Clock Input and Output for 6-Phase Operation Adjustable Soft-Start or VOUT Tracking 38-Pin (5mm × 7mm) QFN and FE Packages AEC-Q100 Qualified for Automotive Applications

38V, 10A DC/DC Module (Power Module) Regulator with Advanced Input and Load Protection Features: Wide Operating Input Voltage Range: 4.5V to 38V 10A DC Typical, 12A Peak Output Current Output Range: 0.6V to 6V ±1.5% Maximum Total Output DC Voltage Error Differential Remote Sense Amplifier for POL Regulation Internal Temperature, Analog Indicator Output Overcurrent Foldback and Overtemperature Protection Current Mode Control/Fast Transient Response Parallelable for Higher Output Current Selectable Pulse-Skipping Operation Soft-Start/Voltage Tracking/Pre-Bias Start-Up 15mm × 15mm × 5.01mm BGA Package SnPb or RoHS Compliant Finish Input Protection UVLO, Overvoltage Shutdown and Latchoff Thresholds N-Channel Overvoltage Power-Interrupt MOSFET Driver Surge Stopper Capable with Few External ComponentsLoad Protection Robust, Resettable Latchoff Overvoltage Protection N-Channel Overvoltage Crowbar Power MOSFET Driver

Overvoltage, Undervoltage and Reverse Supply Protection Controller Features: Wide Operating Voltage Range: 2.5V to 34V Overvoltage Protection to 60V Reverse Supply Protection to –40V LTC4365: Blocks 50Hz and 60Hz AC Power LTC4365-1: Fast (1ms) Recovery from Fault No Input Capacitor or TVS Required for Most Applications Adjustable Undervoltage and Overvoltage Protection Range Charge Pump Enhances External N-Channel MOSFET Low Operating Current: 125μA Low Shutdown Current: 10μA Compact 8-Lead, 3mm × 2mm DFN and TSOT-23 (ThinSOT™) Packages AEC-Q100 Qualified for Automotive Applications