Synchronous Push-Pull PWM Controllers Features: High Efficiency Synchronous Push-Pull PWM 1.5A Sink, 1A Source Output Drivers Adjustable Push-Pull Dead-Time and Synchronous Timing Adjustable System Undervoltage Lockout and Hysteresis Adjustable Leading Edge Blanking Low Start-Up and Quiescent Currents Current Mode (LTC3723-1) and Voltage Mode (LTC3723-2) Operation Single Resistor Slope Compensation VCC UVLO and 25mA Shunt Regulator Programmable Fixed Frequency Operation to 1MHz 50mA Synchronous Output Drivers Soft-Start, Cycle-by-Cycle Current Limiting and Hiccup Mode Short-Circuit Protection 5V, 15mA Low Dropout Regulator Available in 16-Pin SSOP Package

600mA, 500kHz Micropower Synchronous Boost Converter with Output Disconnect Features: Up to 96% Efficiency True Output Load Disconnect Inrush Current Limiting and Internal Soft-Start Low Voltage Start-Up: 0.85V Automatic Burst Mode® Operation with IQ ~ 20µA Continuous Switching at Light Loads (LTC3429B) Internal Synchronous Rectifier Current Mode Control with Internal Compensation Short-Circuit Protection 500kHz Fixed Frequency Switching Input Range: 0.5V to 4.4V Output Range: 2.5V to 4.3V (Up to 5V with Schottky) Shutdown Current: <1µA Antiringing Control Minimizes EMI Tiny External Components Low Profile (1mm) SOT-23 Package

High Efficiency, Synchronous, 4-Switch Buck-Boost Controller Features: Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT Wide VIN Range: 4V to 36V Operation Synchronous Rectification: Up to 98% Efficiency Current Mode Control ±1% Output Voltage Accuracy: 0.8V < VOUT < 30V Phase-Lockable Fixed Frequency: 200kHz to 400kHz Power Good Output Voltage Monitor Internal LDO for MOSFET Supply Quad N-Channel MOSFET Synchronous Drive VOUT Disconnected from VIN During Shutdown Adjustable Soft-Start Current Ramping Foldback Output Current Limiting Selectable Low Current Modes Output Overvoltage Protection Available in 24-Lead SSOP and Exposed Pad (5mm × 5mm) 32-Lead QFN Packages

Power Supply Tracking Controller Features: Flexible Power Supply Tracking Tracks Both Up and Down Power Supply Sequencing Supply Stability is Not Affected Controls Two Supplies Without Series FETs Controls a Third Supply With a Series FET Adjustable Ramp Rates Electronic Circuit Breaker Available in 10-Lead MS and 12-Lead (4mm × 3mm) DFN Packages

Lithium Ion Battery Monitoring System Features: 12-bit ADC, 1 μs per channel conversion time 6 analog input channels,  CM range 0.5 V to 27.5 V 6 auxiliary ADC Inputs ±1.6 mV cell voltage accuracy On-chip voltage regulator Cell balancing interface Daisy-chain interface Internal reference: ±3 ppm/°C 1.8 μA power-down current High input impedance Serial interface with alert function See data sheet for additional features

42V, Low IQ, Quad Output Triple Monolithic Buck Converter and Boost Controller Features: Flexible Power Supply System Capable of Four Regulated Outputs with VBATT << VOUT Two High Voltage Synchronous Buck Regulators 3V to 42V Input Voltage Range Output Currents Up to 2.5A and 1.5A One Low Voltage Synchronous Buck Regulator 2.6V to 5.5V Input Voltage Range Output Currents Up to 1.8A One Boost Controller Allows Buck Converters to Regulate with VBATT << VOUT Selectable Burst Mode® Operation Allows Low 28µA IQ with High Voltage Channels Active Programmable Power-On Reset Individual Channel Power Good Indicators Step-Down Switching Frequency: 250kHz to 2.2MHz Available in 40-Lead QFN (6mm × 6mm) Package AEC-Q100 Qualified for Automotive Applications

60V Synchronous 4-Switch Buck-Boost Controller Features: 4-Switch Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT Synchronous Switching: Up to 98.5% Efficiency Wide VIN Range: 4.7V to 60V 2% Output Voltage Accuracy: 1.2V ≤ VOUT < 60V 6% Output Current Accuracy: 0V ≤ VOUT < 60V Input and Output Current Regulation with Current Monitor Outputs No Top FET Refresh in Buck or Boost VOUT Disconnected from VIN During Shutdown C/10 Charge Termination and Output Shorted Flags Capable of 100W or Greater per IC Easy Parallel Capability to Extend Output Power 38-Lead TSSOP with Exposed Pad

45V VIN, Micropower, Low Noise, 200mA LDO Features:Input Voltage Range: 1.6V to 45VOutput Current: 200mAQuiescent Current: 45μADropout Voltage: 300mVLow Noise: 30μVRMS (10Hz to 100kHz)Adjustable Output (VREF = 600mV)Fixed Output Voltages: 3.3V, 5VOutput Tolerance: ±2% Over Load, Line, and TemperatureSingle Capacitor Soft-Starts Reference and Lowers Output NoiseShutdown Current: < 1μAReverse Battery ProtectionCurrent Limit Foldback and Thermal Limit Protection8-Lead 2mm × 3mm DFN and MSOP Packages

Dual Ultrathin 2.5A or Single 5A Step-Down DC/DC Module Regulator Features: Complete Solution in <1cm2 Wide Input Voltage Range:3.6V to 20V 3.3V Input Compatible with VIN Tied to INTVCC 0.6V to 5.5V Output Voltage Dual 2.5A (3A Peak) or Single 5A Output Current ±1.5% Maximum Total Output Voltage Regulation Error Over Load, Line and Temperature Current Mode Control, Fast Transient Response External Frequency Synchronization Multiphase Parallelable with Current Sharing Output Voltage Tracking and Soft-Start Capability Selectable Burst Mode® Operation Overvoltage Input and Overtemperature Protection Power Good Indicators 6.25mm × 6.25mm × 1.82mm LGA and 6.25mm × 6.25mm × 2.42mm BGA Packages

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