16-Bit, 250ksps, Pseudo-Differential Unipolar SAR ADC with 94.7dB SNR Features:250ksps Throughput Rate±0.75LSB INL (Max)Guaranteed 16-Bit No Missing CodesLow Power: 3.4mW at 250ksps, 3.4μW at 250sps94.7dB SNR (Typ) at fIN = 2kHz–120dB THD (Typ) at fIN = 2kHzGuaranteed Operation to 125°C2.5V SupplyPseudo-Differential Unipolar Input Range: 0V to VREFVREF Input Range from 2.5V to 5.1VNo Pipeline Delay, No Cycle Latency1.8V to 5V I/O VoltagesSPI-Compatible Serial I/O with Daisy-Chain ModeInternal Conversion Clock16-Lead MSOP and 4mm × 3mm DFN Packages

18-Bit, 250ksps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR Features: 250ksps Throughput Rate ±2.5LSB INL (Max) Guaranteed 18-Bit No Missing Codes Low Power: 3.4mW at 250ksps, 3.4μW at 250sps 97dB SNR (Typ) at fIN = 2kHz –120dB THD (Typ) at fIN = 2kHz Guaranteed Operation to 125°C 2.5V Supply Pseudo-Differential Unipolar Input Range: 0V to VREF VREF Input Range from 2.5V to 5.1V No Pipeline Delay, No Cycle Latency 1.8V to 5V I/O Voltages SPI-Compatible Serial I/O with Daisy-Chain Mode Internal Conversion Clock 16-Lead MSOP and 4mm × 3mm DFN Packages

Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Accurate Current Sharing Features: Operates with Power Blocks, DrMOS or External Gate Drivers and MOSFETs Constant-Frequency Voltage Mode Control with Accurate Current Sharing ±0.75% 0.6V Voltage Reference Dual Differential Output Voltage Sense Amplifiers Multiphase Capability—Up to 12-Phase Operation Programmable Current Limit Safely Powers a Prebiased Load Programmable or PLL-Synchronizable Switching Frequency Up to 2.25MHz Lossless Current Sensing Using Inductor DCR or Precision Current Sensing with Sense Resistor VCC Range: 3V to 5.5V VIN Range: 3V to 24V Power Good Output Voltage Monitor Output Voltage Tracking Capability Programmable Soft-Start Available in a 36-Pin 5mm × 6mm QFN Package

Precision, Low Power Rail-to-Rail Input/Output Differential Op Amp/SAR ADC Driver Features: 1mA Supply Current Single 2.8V to 5.25V supply Fully Differential Input and Output 200μV Max Offset Voltage 260nA Max Input Bias Current Fast Settling: 550ns to 18-Bit, 8VP-P Output Low Distortion: –116dBc at 1kHz, 8VP-P Rail-to-Rail Inputs and Outputs 3.9nV/√Hz Input-Referred Noise 180MHz Gain-Bandwidth Product 34MHz –3dB Bandwidth Low Power Shutdown: 70μA 8-Lead MSOP and 3mm × 3mm 8-Lead DFN Packages

300MHz to 4GHz Active Downconverting Mixer with Wideband IF Features: High IIP3: +26.9dBm at 1950MHz 1.9dB Conversion Gain Low Noise Figure: 11.8dB at 1950MHz 16.5dB NF Under 5dBm Blocking Low Power: 294mW Wide IF Frequency Range Up to 2.5GHz LO Input 50Ω Matched when Shutdown –40°C to 105°C Operation (TC) Very Small Solution Size Pin Compatible with LT5557 16-Lead (4mm × 4mm) QFN package

4.5A, 500kHz Step-Down Switching Regulator Features: Constant 500kHz Switching Frequency High Power 16-Pin TSSOP Package Available Uses All Surface Mount Components Inductor Size Reduced to 1.8µH Saturating Switch Design: 0.07 Effective Supply Current: 2.5mA Shutdown Current: 20µA Cycle-by-Cycle Current Limiting Easily Synchronizable

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

1.8A Quiescent Current, 15V, 300mA Synchronous Step-Down DC/DC Converter Features: Ultralow Quiescent Current: 1.8μA Synchronous Rectification: Efficiency Up to 95% Wide VIN Range: 2.5V to 15V Wide VOUT Range: 0.6V to 13.8V 300mA Output Current User-Selectable Automatic Burst Mode® or Forced Continuous Operation Accurate and Programmable RUN Pin Threshold 1.2MHz Fixed Frequency PWM Internal Compensation Power Good Status Output for VOUT Available in Thermally Enhanced 3mm × 3mm × 0.75mm, 10-Pin DFN and 10-Pin MSOP Packages

Dual Battery Charger/ Selector with SPI Interface Features: Complete Dual-Battery Charger/Selector System Serial SPI Interface Allows External µC Control and Monitoring Simultaneous Dual-Battery Discharge Extends Run Time by Typically 10% Simultaneous Dual-Battery Charging Reduces Charging Time by Up to 50% Automatic PowerPath™ Switching in <10µs Prevents Power Interruption Circuit Breaker Protects Against Overcurrent Faults 5% Accurate Adapter Current Limit Maximizes Charging Rate 95% Efficient Synchronous Buck Charger Charger Has Low 0.5V Dropout Voltage No Audible Noise Generation, Even with Ceramic Capacitors 11-Bit VDAC Delivers 0.8% Voltage Accuracy 10-Bit IDAC Delivers 5% Current Accuracy VIN Up to 32V; VBATT Up to 28V Available in 5mm × 7mm 38-Pin QFN and 36-Pin Narrow SSOP Packages

isoSPI Isolated Communications Interface Features: AEC-Q100 Qualified for Automotive Applications 1Mbps Isolated SPI Data Communications Simple Galvanic Isolation Using Standard Transformers Bidirectional Interface Over a Single Twisted Pair Supports Cable Lengths Up to 100 Meters Very Low EMI Susceptibility and Emissions Configurable for High Noise Immunity or Low Power Engineered for ISO26262 Compliant Systems Requires No Software Changes in Most SPI Systems Ultralow, 2µA Idle Current Automatic Wake-Up Detection Operating Temperature Range: –40°C to 125°C 2.7V to 5.5V Power Supply Interfaces to All Logic from 1.7V to 5.5V Available in 16-Lead QFN and MSOP Packages