High Efficiency Bidirectional Multicell Battery Balancer Features: Bidirectional Synchronous Flyback Balancing of Up to 6 Li-Ion or LiFePO4 Cells in Series Up to 10A Balancing Current (Set by Externals) Integrates Seamlessly with the LTC680x Family of Multicell Battery Stack Monitors Bidirectional Architecture Minimizes Balancing Time and Power Dissipation Up to 92% Charge Transfer Efficiency Stackable Architecture Enables >1000V Systems Uses Simple 2-Winding Transformers 1MHz Daisy-Chainable Serial Interface with 4-Bit CRC Packet Error Checking High Noise Margin Serial Communication Numerous Fault Protection Features 48-Lead Exposed Pad QFN and LQFP Packages AEC-Q100 Qualified for Automotive Applications

Dual 13A or Single 26A Module (Power Module) Regulator with Digital Power System Management Features: Dual, Fast, Analog Loops with Digital Interface for Control and Monitoring Wide Input Voltage Range: 4.5V to 26.5V Output Voltage Range: 0.5V to 5.5V ±0.5% Maximum DC Output Error Over Temperature ±2.5% Current Readback Accuracy at 10A Load 400kHz PMBus-Compliant I2C Serial Interface Integrated 16-Bit ΔΣ ADC Supports Telemetry Polling Rates Up to 125Hz Constant Frequency Current Mode Control Parallel and Current Share Multiple Modules All 7-Bit Slave Addresses Supported Pin-Compatible to Dual 18A LTM4677 16mm × 16mm × 5.01mm BGA PackageReadable Data: Input and Output Voltages, Currents, and Temperatures Running Peak Values, Uptime, Faults and Warnings Onboard EEPROM Fault Log Record with ECCWritable Data and Configurable Parameters: Output Voltage, Voltage Sequencing and Margining Digital Soft-Start/Stop Ramp OV/UV/OT, UVLO, Frequency and Phasing

Dual, Multiphase Current Mode Synchronous Controller for Sub-Milliohm DCR Sensing Features:Sub-Milliohm DCR Current SensingOperates with Power Blocks, DRMOS or External Gate Drivers and MOSFETsSupports Phase Shedding and N+1 Phase RedundancyProgrammable DCR Temperature Compensation±0.75% Maximum Total DC Output Error Over TemperatureDual Differential Remote Output Voltage Sense AmplifiersPhase-Lockable Fixed Frequency Range: 200kHz to 1.2MHzVIN Range: 4.5V to 38VVOUT Range: 0.6V to 3.5VSupports Smooth Start-Up into Pre-Biased OutputsProgrammable Soft-Start or VOUT TrackingHiccup Mode/Soft Recovery from Output Overcurrent36-Lead (5mm × 6mm) QFN Package

Dual 18A or Single 36A Module (Power Module) Regulator with 0.8% DC and 3% Transient Accuracy Features:±0.8% Maximum Total DC Output Error Over Line, Load and Temperature (LTM4630-1A)±3% Transient Output Error with Minimum Output CapacitanceDual 18A or Single 36A Output4.5V to 15V Input, 0.6V to 1.8V Output Voltage RangeDifferential Remote Sense AmplifierCurrent Mode Control/Fast Transient ResponseCurrent Sharing Up to 144A16mm × 16mm × 5.01mm BGA Package

Low VIN 20A DC/DC Module (Power Module) Step-Down Regulator Features: Complete 20A Switch Mode Power Supply 2.375V to 7V Input Voltage Range (VIN < 4.5V, Need CPWR Bias) 0.6V to 5.5V Output Voltage Range ±1.5% Maximum Total DC Output Voltage Error (–40°C to 125°C) Differential Remote Sense Amplifier for Precision Regulation (VOUT ≤ 3.3V) Current Mode Control/Fast Transient Response Parallel Multiphase Current Sharing (Up to 80A) Frequency Synchronization Selectable Pulse-Skipping or Burst Mode® Operation Soft-Start/Voltage Tracking Up to 88% Efficiency (3.3VIN, 1.5VOUT) Overcurrent Foldback Protection Output Overvoltage Protection Internal Temperature Monitor Overtemperature Protection 15mm × 15mm × 4.92mm BGA Package

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)

20VIN, Dual 4A or Single 8A DC/DC Module Regulator Features: Small Form Factor Dual 4A Power Supply Wide Input Voltage Range: 4.5V to 20V (2.375V Min with CPWR Bias) Dual 180° Out-of-Phase Outputs with 4A DC Dual Outputs with 0.6V to 5.5V Range Output Voltage Tracking ±1.5% Maximum Total DC Output Voltage Error Up to 95% Maximum Efficiency Phase-Lockable Fixed Frequency 600kHz to 1.4MHz Constant On-Time, Valley Current Mode Architecture Selectable Burst Mode® Operation Output Overvoltage and Overcurrent Protection 9mm × 11.25mm × 4.92mm BGA Package

High Efficiency, Secondary-Side Synchronous Forward Controller Features: Direct Flux Limit™ Guarantees No Saturation Fast and Accurate Average Current Limit Clean Start-Up Into Pre-Biased Output Secondary-Side Control for Fast Transient Response Simple, Self-Starting Architecture Synchronous MOSFET Reverse Current Limit PolyPhase® Operation Eases High-Power Design True Remote Sense Differential Amplifier Remote Sense Reverse Protection High Voltage Linear Regulator Controller Internal LDO Powers Gate Drive from VOUT Overtemperature/Overvoltage Protection Low Profile 4mm × 5mm QFN and Narrow 28-Lead SSOP Packages

40V 400mA Step-Down Switching Regulator with Dual Fault Protected Tracking LDOs Features: Dual Low Dropout Linear Tracking Regulators 200mA Outputs with Programmable Current Limits 1.6V to 45V Input Range Fault Protected to ±45V Triple Output Supply from a Single Input Requires Only One Inductor IQ = 50μA at 12VIN to 6V and 5V with No Load Buck Regulator: Low Ripple (<15mVP-P) Burst Mode® Operation 400mA Output with Internal Power Switch 4.3V to 40V Input Operation Range (60V Max) Adjustable 250kHz to 2.2MHz Switching Frequency Power Good Indicator Available in a Thermally-Enhanced 16-Lead MSOP Package

40VIN, 2.5A Silent Switcher Module Regulator Features: Complete Step-Down Switch Mode Power Supply Low Noise Silent Switcher® Architecture Wide Input Voltage Range: 3.4V to 40V Wide Output Voltage Range: 0.97V to 18V 2.5A Continuous Output Current, 3.5A Peak Selectable Switching Frequency: 200kHz to 3MHz External Synchronization Programmable Soft-Start Tiny, Low Profile 6.25mm × 6.25mm × 2.32mm RoHS Compliant BGA Package