37V/1.2A Step-Down Regulator in 3mm 3mm DFN Features: Wide Input Range: Operation from 3.6V to 37V Overvoltage Lockout Protects Circuit Through 55V Transients Low Minimum On-Time: Converts 16VIN to 3.3VOUT at 2MHz 1.2A Output Current Adjustable Frequency: 300kHz to 2.5MHz Constant Switching Frequency at Light Loads Tracking and Soft-Start Precision UVLO Short-Circuit Robust IQ in Shutdown <1μA Internally Compensated 10-Lead 3mm × 3mm DFN Package

12 Channel Multicell Battery Monitor with Daisy Chain Interface, Generation 1 Features: Qualified for Automotive Applications Measures Up to 12 Li-Ion Cells in Series (60V Max) Stackable Architecture Enables >1000V Systems 0.25% Maximum Total Measurement Error 13ms to Measure All Cells in a System Cell Balancing: On-Chip Passive Cell Balancing Switches Provision for Off-Chip Passive Balancing Two Thermistor Inputs Plus On-Board Temperature Sensor 1MHz Daisy-Chainable Serial Interface High EMI Immunity Delta Sigma Converter with Built-In Noise Filter Open Wire Connection Fault Detection Low Power Modes 44-Lead SSOP Package

Dual 8A per Channel Low VIN DC/DC Module (Power Module) Regulator Features: Complete Dual DC/DC Regulator System Input Voltage Range: 2.7V to 5.5V Dual 8A Outputs, or Single 16A Output with a 0.6V to 5V Range Output Voltage Tracking and Margining ±1.75% Total DC Output Error (–55°C to 125°C) Current Mode Control/Fast Transient Response Power Good Tracking and Margining Overcurrent/Thermal Shutdown Protection Onboard Frequency Synchronization Spread Spectrum Frequency Modulation Multiphase Operation Selectable Burst Mode® Operation Output Overvoltage Protection SnPb (BGA) or RoHS Compliant (LGA and BGA) Finish Small Surface Mount Footprint, Low Profile (15mm × 15mm × 2.82mm) LGA and (15mm × 15mm × 3.42mm) BGA 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 Performance, Polyphase Energy, and Class S Power Quality Monitoring IC Features: 7 high performance, 24-bit Σ-Δ ADCs 101 dB SNR at 8 kSPS with PGA = 1 Wide input voltage range: ±1 V, 707 mV rms full scale at gain = 1 Differential inputs ±25 ppm/°C maximum channel drift (including ADC, internal VREF, PGA drift) enabling 10000:1 dynamic input range, Class 0.2 metrology with standard external components With the optional ADSW-PQ-CLS Power Quality Library, the complete IEC 61000-4-30 Class S power quality standard is implemented including: Power frequency 10 sec average Magnitude of the supply Dips and swells Interruptions Rapid voltage change Flicker Mains signaling voltage Underdeviation and overdeviation Voltage and current Magnitude Harmonics Interharmonics Unbalance THD Waveform recording Optional ADSW-PQ-CLS Power Quality Library compatible with ARM® Cortex microcontrollers VRMS one-cycle and IRMS one-cycle refreshed each cycle VRMS and IRMS filtered and updated every sample 10 cycle rms/12 cycle rms Period registers to calculate line frequency, one per phase Zero crossing and zero-crossing timeout Phase angle measurements Supports CTs Multipoint phase and gain compensations for CTs Rogowski coils with the addition of an external analog integrator Continuous resampled data available Waveform buffer Advanced metrology feature set Total and fundamental active power, volt amperes reactive (VAR), volt amperes (VA), watthour, VAR hour, and VA hour Total and fundamental IRMS and VRMS Power factor Supports active energy standards: IEC 62053-21 and IEC 62053-22, EN50470-3, OIML R46, and ANSI C12.20 Supports reactive energy standards: IEC 62053-23 and IEC 62053-24 High speed communication port: 20 MHz SPI Integrated temperature sensor with 12-bit successive approximation register (SAR) ADC ±3°C accuracy from −40°C to +85°C

Ultralow Noise, LDO XFET 2.5V Voltage Reference w/Current Sink and Source Features: Ultralow noise (0.1 Hz to 10 Hz) ADR440: 1 μV p-p ADR441: 1.2 μV p-p ADR443: 1.4 μV p-p ADR444: 1.8 μV p-p ADR445: 2.25 μV p-p Superb temperature coefficient A Grade: 10 ppm/°C B Grade: 3 ppm/°C Low dropout operation (supply voltage headroom): 500 mV Input range: (VOUT + 500 mV) to 18 V High output source and sink current +10 mA and −5 mA, respectively Wide temperature range: −40°C to +125°CADR441-EP supports defense and aerospace applications (AQEC standard) Download ADR441-EP Data Sheet (pdf) Military temperature range (−55°C to +125°C) Controlled manufacturing baseline 1 assembly/test site 1 fabrication site Product change notification Qualification data available on request V62/18620 DSCC Drawing Number

Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference Features: Maximum temperature coefficient (TCVOUT): 0.8 ppm/°C (D grade 0°C to 70°C) 1 ppm/°C (C grade 0°C to 70°C) 2 ppm/°C (B grade −40°C to +125°C) 4 ppm/°C (A grade 40°C to +125°C) Output noise (0.1 Hz to 10 Hz): 1 μV p-p at VOUT of 2.048 V typical Initial output voltage error: B, C, D grade: ±0.02% (maximum) Input voltage range: 3 V to 15 V Operating temperature: A grade and B grade: −40°C to +125°C C grade: 0°C to +70°C Output current: +10 mA source/−10 mA sink Low quiescent current: 950 μA (maximum) Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V) 8-lead SOIC package and LCC package AEC-Q100 qualified for automotive applications Long-term drift: 8 ppm typical at 4500 hours

Ultra-Low-Noise, High-Accuracy 4.096V Voltage Reference Features: Maximum temperature coefficient (TCVOUT): 0.8 ppm/°C (D grade 0°C to 70°C) 1 ppm/°C (C grade 0°C to 70°C) 2 ppm/°C (B grade −40°C to +125°C) 4 ppm/°C (A grade 40°C to +125°C) Output noise (0.1 Hz to 10 Hz): 1 μV p-p at VOUT of 2.048 V typical Initial output voltage error: B, C, D grade: ±0.02% (maximum) Input voltage range: 3 V to 15 V Operating temperature: A grade and B grade: −40°C to +125°C C grade: 0°C to +70°C Output current: +10 mA source/−10 mA sink Low quiescent current: 950 μA (maximum) Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V) 8-lead SOIC package and LCC package AEC-Q100 qualified for automotive applications Long-term drift: 8 ppm typical at 4500 hours

Ultra-Low-Noise, High-Accuracy 4.096V Voltage Reference Features: Maximum temperature coefficient (TCVOUT): 0.8 ppm/°C (D grade 0°C to 70°C) 1 ppm/°C (C grade 0°C to 70°C) 2 ppm/°C (B grade −40°C to +125°C) 4 ppm/°C (A grade 40°C to +125°C) Output noise (0.1 Hz to 10 Hz): 1 μV p-p at VOUT of 2.048 V typical Initial output voltage error: B, C, D grade: ±0.02% (maximum) Input voltage range: 3 V to 15 V Operating temperature: A grade and B grade: −40°C to +125°C C grade: 0°C to +70°C Output current: +10 mA source/−10 mA sink Low quiescent current: 950 μA (maximum) Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V) 8-lead SOIC package and LCC package AEC-Q100 qualified for automotive applications Long-term drift: 8 ppm typical at 4500 hours

Ultra-Low-Noise, High-Accuracy 5.0V Voltage Reference Features: Maximum temperature coefficient (TCVOUT): 0.8 ppm/°C (D grade 0°C to 70°C) 1 ppm/°C (C grade 0°C to 70°C) 2 ppm/°C (B grade −40°C to +125°C) 4 ppm/°C (A grade 40°C to +125°C) Output noise (0.1 Hz to 10 Hz): 1 μV p-p at VOUT of 2.048 V typical Initial output voltage error: B, C, D grade: ±0.02% (maximum) Input voltage range: 3 V to 15 V Operating temperature: A grade and B grade: −40°C to +125°C C grade: 0°C to +70°C Output current: +10 mA source/−10 mA sink Low quiescent current: 950 μA (maximum) Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V) 8-lead SOIC package and LCC package AEC-Q100 qualified for automotive applications Long-term drift: 8 ppm typical at 4500 hours