High Efficiency Low Noise Synchronous Step-Down Switching Regulators Features: Maintains Constant Frequency at Low Output Currents Programmable Fixed Frequency (PLL Lockable) Wide VIN Range: 3.5V to 36V Operation Low Minimum On-Time (≤300ns) for High Frequency, Low Duty Cycle Applications Dual N-Channel MOSFET Synchronous Drive Very Low Dropout Operation: 99% Duty Cycle Low Dropout, 0.5A Linear Regulator for CPU I/O or Low Noise Audio Supplies Built-In Power-On Reset Timer Programmable Soft Start Low-Battery Detector Remote Output Voltage Sense Foldback Current Limiting (Optional) Pin Selectable Output Voltage Logic Controlled Micropower Shutdown: IQ < 25µA Output Voltages from 1.19V to 9V Available in 24-Lead Narrow SSOP and 28-Lead SSOP Packages

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

4A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter Features:4A Output Current2.25V to 5.5V Input Voltage RangeLow Output Ripple Burst Mode® Operation: IQ = 75μA±1% Output Voltage AccuracyOutput Voltage Down to 0.6VHigh Efficiency: Up to 95%Low Dropout Operation: 100% Duty CycleProgrammable Slew Rate on SW Node Reduces Noise and EMIAdjustable Switching Frequency: Up to 4MHzOptional Active Voltage Positioning (AVP) with Internal CompensationSelectable Pulse-Skipping/Forced Continuous/Burst Mode Operation with Adjustable Burst ClampProgrammable Soft-StartInputs for Start-Up Tracking or External ReferenceDDR Memory Mode, IOUT = ±3AAvailable in a 24-Pin 3mm × 5mm QFN Thermally Enhanced Package

Independent Multicell Battery Stack Fault Monitor Features: Qualified for Automotive Applications Monitors Up to 12 Li-Ion Cells in Series (60V Max) Stackable Architecture Enables > 1000V Systems 1% Maximum Overvoltage Detection Level Error Adjustable Overvoltage and Undervoltage Detection Self Test Features Guarantee Accuracy Robust Fault Detection Using Differential Signals Simple Pin-Strapped Configuration Allows Battery Monitoring without a Microcontroller 15.5ms to Monitor All Cells in a System Programmable Response Time Two Temperature Monitor Inputs Low Power Idle Mode 36-Lead SSOP Package

62V, 350mA Step-Down Regulator with 2.5A Quiescent Current and Integrated Diodes Features: Low Ripple Burst Mode® Operation 2.5μA IQ at 12VIN to 3.3VOUT Output Ripple < 5mVP-P Wide Input Voltage Range: 4.2V to 62V Operating Adjustable Switching Frequency: 200kHz to 2.2MHz Integrated Boost and Catch Diodes 350mA Output Current Fixed Output Voltages: 3.3V, 5V 2μA IQ at 12VIN Accurate Programmable Undervoltage Lockout FMEA Fault Tolerant (MSOP Package) Output Stays at or Below Regulation Voltage During Adjacent Pin Short or When a Pin is Left Floating Low Shutdown Current: IQ = 0.7μA Internal Sense Limits Catch Diode Current Power Good Flag Small, Thermally Enhanced 16-Pin MSOP and (3mm × 3mm) DFN Packages

Differential Ultra-Tiny, 16-Bit I2C ADCs with 10ppm/C Max Precision Reference Features: 16-Bit Resolution, No Missing Codes Internal Reference, High Accuracy 10ppm/°C (Max) Single-Ended (LTC2461) or Differential (LTC2463) 2LSB Offset Error (Typ) 0.01% Gain Error (Typ) 60 Conversions Per Second Single Conversion Settling Time for Multiplexed Applications 1.5mA Supply Current 200nA Sleep Current Internal Oscillator—No External Components Required 2-Wire I2C Interface with Two Addresses Plus One Global Address for Synchronization Ultra-Tiny, 12-Lead, 3mm × 3mm DFN and MSOP Packages

Dual 13A or Single 26A DC/DC Module (Power Module) Regulator Features: Complete Standalone Dual Output Power Supply Dual 13A or Single 26A Output Wide Input Voltage Range: 4.5V to 16V Output Voltage Range: 0.6V to 2.5V ±1.5% Maximum Total DC Output Error Multiphase Current Sharing with Multiple LTM4620s Up to 100A Differential Remote Sense Amplifier Current Mode Control/Fast Transient Response Adjustable Switching Frequency Overcurrent Foldback Protection Frequency Synchronization Internal Temperature Monitor Output Overvoltage Protection SnPb or RoHS Compliant Finish Thermally Enhanced (15mm × 15mm × 4.41mm) LGA Package and (15mm × 15mm × 5.01mm) BGA Package

Complete Isolated RS485/RS422 Module Transceiver + Power Features: RS485/RS422 Transceiver: 2500VRMS for 1 Minute UL-CSA Recognized File #E151738 CSA Component Acceptance Notice 5A Isolated DC Power: 5V at Up to 200mA No External Components Required 20Mbps or Low EMI 250kbps Data Rate High ESD: ±15kV HBM on Transceiver Interface High Common Mode Transient Immunity: 30kV/μs Integrated Selectable 120Ω Termination 3.3V (LTM2881-3) or 5.0V (LTM2881-5) Operation 1.62V to 5.5V Logic Supply Pin for Flexible Digital Interface Maximum Continuous Working Voltage: 560VPEAK High Input Impedance Failsafe RS485 Receiver Current Limited Drivers and Thermal Shutdown Compatible with TIA/EIA-485-A and PROFIBUS High Impedance Output During Internal Fault Condition Low Current Shutdown Mode (< 10μA) General Purpose CMOS Isolated Channel 15mm × 11.25mm BGA and LGA Packages

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

High Efficiency, Synchronous, 4-Switch Buck-Boost Controller Features: Single Inductor Architecture Allows VIN Above, Below or Equal to the Regulated VOUT Programmable Input or Output Current Wide VIN Range: 4V to 38V 1% Output Voltage Accuracy: 0.8V < VOUT < 38V Synchronous Rectification: Up to 98% Efficiency Current Mode Control Phase-Lockable Fixed Frequency: 200kHz to 600kHz No Reverse Current During Start-Up Power Good Output Voltage Monitor Internal 5.5V LDO Quad N-Channel MOSFET Synchronous Drive VOUT Disconnected from VIN During Shutdown True Soft-Start and VOUT Short Protection, Even in Boost Mode Available in 28-Lead QFN (4mm × 5mm) and 28-Lead SSOP Packages