18-Cell Battery Monitor with Daisy Chain Interface Features: Measures up to 18 battery cells in series 3 mV maximum total measurement error Stackable architecture for high voltage systems Built-in isoSPI interface 1 Mb isolated serial communications Uses a single twisted pair, up to 100 meters Low EMI susceptibility and emissions Bidirectional for broken wire protection 290 μs to measure all cells in a system Synchronized voltage and current measurement 16-bit Δ-Σ ADC with programmable third-order noise filter Passive cell balancing up to 200 mA (maximum) with programmable pulsewidth modulation 9 general purpose digital I/O or analog inputs Temperature or other sensor inputs Configurable as an I2C or SPI master 6 μA sleep mode supply current 64-lead LQFP_EP package

40V Low IQ, 3MHz Dual, 2-Phase Synchronous Step-Down Controller with Spread Spectrum Features: Wide Input Voltage Range: 4.5V to 40V Wide Output Voltage Range: 0.8V to 99% • VIN Low Operating IQ: 14μA (14V to 3.3V, Channel 1 On) Spread Spectrum Operation RSENSE or DCR Current Sensing Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise Programmable Fixed Frequency (100kHz to 3MHz) Phase-Lockable Frequency (100kHz to 3MHz) Selectable Continuous, Pulse-Skipping, or Low Ripple, Burst Mode® Operation at Light Loads Very Low Dropout Operation: 99% Duty Cycle Power Good Output Voltage Monitors Output Overvoltage Protection Internal LDO Powers Gate Drive from VIN or EXTVCC Low Shutdown IQ: 1.5μA Small 28-Lead 4mm × 5mm QFN Package AEC-Q100 Qualified for Automotive Applications

Quad 31.25A or Single 125A Module Regulator with Digital Power System Management Features: Quad Digitally Adjustable Analog Loops with Digital Interface for Control and Monitoring Wide Input Voltage Range: 4.5V to 16V Output Voltage Range: 0.5V to 3.3V ±0.5% Maximum DC Output Error Over Temperature ±4% Current Readback Accuracy: 0°C to 125°C Integrated Input Current Sense Amplifier 400kHz PMBus-Compliant I2C Serial Interface Supports Telemetry Polling Rates Up to 125Hz Integrated 16-Bit ΔΣ ADC Parallel and Current Share Multiple Modules 15mm × 22mm × 8.17mm BGA Package Readable Data: Input and Output Voltages, Currents, and Temperatures Running Peak Values, Uptime, Faults and Warnings Onboard EEPROM Fault Log Record Writable Data and Configurable Parameters: Output Voltage, Voltage Sequencing and Margining Digital Soft-Start/Stop Ramp, Program Analog Loop OV/UV/OT, UVLO, Frequency and Phasing

1.1A, 35MHz Current Feedback Amplifier Features:1.1A Minimum Output Drive Current35MHz Bandwidth, AV = 2, RL = 10Ω900V/μs Slew Rate, AV = 2, RL = 10ΩHigh Input Impedance: 10MΩWide Supply Range: ± 5V to ±15V (TO-220 and DD Packages)Enhanced θJA SO-16 Package for ±5V OperationShutdown Mode: IS < 200μAAdjustable Supply CurrentStable with CL = 10,000pFOperating Temperature Range: –40°C to 85°CAvailable in 7-Lead DD, TO-220 and 16-Lead SO Packages

Ultrathin Low VIN, 2A Buck-Boost Module Regulator Features: Wide Input Voltage Range: 2.6V to 5.5V Adjustable Output Voltage Range: 1.8V to 5.5V 2A of Continuous Output Current with VIN ≥ VOUT (Buck Mode and Buck-Boost Mode); Minimum 1A Continuous Output Current with VIN < VOUT (Boost Mode). Low Ripple Buck-Boost Architecture Programmable Soft-Start and VIN UVLO Burst Mode IQ 15μA for High Efficiency at Light Loads Ultrathin, Small Surface Mount Footprint 3.5mm × 4mm × 1.25mm LGA Package

42V, 5A/7A Peak Synchronous Step-Down Silent Switcher with 2.5A Quiescent Current Features: Silent Switcher® Architecture Ultralow EMI Emissions Optional Spread Spectrum Modulation High Efficiency at High Frequency Up to 96% Efficiency at 1MHz, 12VIN to 5VOUT Up to 95% Efficiency at 2MHz, 12VIN to 5VOUT Wide Input Voltage Range: 3.4V to 42V 5A Maximum Continuous, 7A Peak Transient Output Ultralow Quiescent Current Burst Mode® Operation 2.5µA IQ Regulating 12VIN to 3.3VOUT Output Ripple < 10mVP-P Fast Minimum Switch On-Time: 30ns Low Dropout Under All Conditions: 100mV at 1A Forced Continuous Mode Adjustable and Synchronizable: 200kHz to 3MHz Output Soft-Start and Power Good Small 20-Lead 4mm × 3mm LQFN Package AEC-Q100 Qualified for Automotive Applications

36V 10W No-Opto Isolated Flyback Converter Features: 4V to 36V Input Voltage Range 3.6A, 65V Internal DMOS Power Switch Low Quiescent Current Quasi-Resonant Boundary Mode Operation at Heavy Load Low Ripple Burst Mode® Operation at Light Load Minimum Load < 0.5% (Typ) of Full Output No Transformer Third Winding or Opto-Isolator Required for Output Voltage Regulation Accurate EN/UVLO Threshold and Hysteresis Temperature Compensation for Output Diode Output Short-Circuit Protection Thermally Enhanced 8-Lead SO Package

Micropower, Regulated Charge Pump DC/DC Converters Features: 5V Output Current: 100mA (VIN ≥ 3V) 3.3V Output Current: 80mA (VIN ≥ 2.5V) Ultralow Power: 20µA Quiescent Current Regulated Output Voltage: 3.3V ±4%, 5V ±4%, ADJ VIN Range: 2V to 5.5V 800kHz Switching Frequency No Inductors Very Low Shutdown Current: <2µA Shutdown Disconnects Load from VIN PowerGood/Undervoltage Output Adjustable Soft-Start Time Short-Circuit/Thermal Protection Available in 8-Pin MSOP

High Efficiency Monolithic Synchronous Step-Down Regulator Features: High Efficiency: Up to 95% Very Low Quiescent Current: Only 10µA During Operation 600mA Output Current at VIN = 3.3V 2.65V to 6V Input Voltage Range 550kHz Constant Frequency Operation Synchronizable from 400kHz to 700kHz Selectable Burst Mode™ Operation or Pulse Skipping Mode No Schottky Diode Required Low Dropout Operation: 100% Duty Cycle 0.8V Reference Allows Low Output Voltages Shutdown Mode Draws < 1µA Supply Current ±2% Output Voltage Accuracy Current Mode Control for Excellent Line and Load Transient Response Overcurrent and Overtemperature Protected Available in 8-Lead MSOP Package

Lithium-Ion Battery Pulse Chargers with Overcurrent Protection Features: Complete Pulse Charger for 1-Cell Lithium-Ion Batteries Sense Resistor Limits Maximum Current for Safety 1% Float Voltage Accuracy End-of-Charge (C/10) Detection Output Programmable Charge Termination Timer Internal 0.35 NMOS Switch No Blocking Diode Required SEL Pin to Set Either 4.1V or 4.2V/Cell (LTC1730-4) Low-Battery Drain (1µA Max) when Input Supply Is Removed Battery Temperature Sensing and Charge Qualification Automatic Trickle Charge for Low-Battery Cell Automatic Battery Refresh