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

Dual, 2-Phase Synchronous Step-Down DC/DC Controllers Features: Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise Accurate Multiphase Current Matching RSENSE or DCR Current Sensing ±0.75% 0.6V Output Voltage Accuracy Phase-Lockable Fixed Frequency 250kHz to 780kHz High Efficiency: Up to 95% Dual N-channel MOSFET Synchronous Drive Wide VIN Range: 4V to 38V (40V Max) Operation Wide VOUT Range: 0.6V to 12.5V Operation Adjustable Soft-Start Current Ramping or Tracking Foldback Output Current Limiting Output Overvoltage Protection Power Good Output Voltage Monitor 5V Low Dropout Regulator Small 28-Lead QFN and Narrow SSOP Packages

SMBus Programmable CCFL Switching Regulator Features: Wide Battery Input Range: 4.5V to 30V Grounded Lamp or Floating Lamp Configurations Open Lamp Protection Precision 100µA Full-Scale DAC Programming Current 2-Wire SMBus Interface Two Selectable SMBus Addresses DAC Setting Is Retained in Shutdown

15V Dual 3A Monolithic Step-Down Regulator for DDR Power Features: 3.6V to 15V Input Voltage Range ±3A Output Current per Channel Up to 95% Efficiency Selectable 90°/180° Phase Shift Between Channels Adjustable Switching Frequency: 500kHz to 4MHz VTTR = VDDQ/2 = VTT Reference ±1.6% Accurate VTTR at 0.75V Optimal VOUT Range: 0.6V to 3V ±10mA Buffered Output Supplies VREF Reference Voltage Current Mode Operation for Excellent Line and Load Transient Response External Clock Synchronization Short-Circuit Protected Input Overvoltage and Overtemperature Protection Power Good Status Outputs Available in (4mm × 5mm) QFN-28 and Thermally Enhanced 28-Lead TSSOP Packages

Dual 750mA/250mA Low Dropout, Low Noise, Micropower Linear Regulator Features: Output Current: 750mA/250mA Low Dropout Voltage: 300mV Low Noise: 20μVRMS (10Hz to 100kHz) Low Quiescent Current: 120μA/75μA Wide Input Voltage Range: 1.7V to 20V Adjustable Output: 1.220V Reference Voltage Shutdown Quiescent Current: <1μA Stable with 10μF/3.3μF Minimum Output Capacitor Stable with Ceramic, Tantalum or Aluminum Electrolytic Capacitors Precision Threshold for Shutdown Logic or UVLO Function PWRGD Flag for each Output Reverse Battery and Reverse Output-to-Input Protection Current Limit with Foldback and Thermal Shutdown Thermally Enhanced 20-Lead TSSOP and 28-Lead (4mm × 5mm) QFN Packages

5A Integrated Hot Swap Controller Features: Allows Safe Board Insertion into a Live Backplane Small Footprint 33mΩ MOSFET with RSENSE Wide Operating Voltage Range: 2.9V to 15V Adjustable, 10% Accurate Current Limit Current and Temperature Monitor Outputs Overtemperature Protection Adjustable Current Limit Timer Before Fault Power Good and Fault Outputs Adjustable Inrush Current Control 2% Accurate Undervoltage and Overvoltage Protection Pin Compatible with LTC4217 (DFN Package Only) Available in 16-Lead 5mm × 3mm DFN Package

15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3A Quiescent Current Features:Regulates VOUT Above, Below or Equal to VINWide VIN Range: 2.42V to 15V, 1.92V to 15V After Start-Up (Bootstrapped)Wide VOUT Range: 1.4V to 15.75V200mA Output Current in Buck ModeSingle Inductor1.3μA Quiescent CurrentProgrammable Maximum Power Point Control1.2MHz Ultralow Noise PWMCurrent Mode ControlPin Selectable Burst Mode® OperationUp to 95% EfficiencyAccurate RUN Pin ThresholdPower Good Indicator10nA Shutdown CurrentThermally Enhanced 3mm × 3mm QFN and 16-Lead MSOP Packages

80V VIN and VOUT Synchronous 4-Switch Buck-Boost DC/DC Controller Features:Single Inductor Allows VIN Above, Below, or Equal to Regulated VOUTVIN Range 2.8V (Need EXTVCC > 6.4V) to 80VVOUT Range: 1.3V to 80VQuad N-Channel MOSFET Gate DriversSynchronous Rectification: Up to 98% EfficiencyInput and Output Current Monitor PinsSynchronizable Fixed Frequency: 100kHz to 400kHzIntegrated Input Current, Input Voltage, Output and Output Voltage Feedback LoopsClock Output Usable To Monitor Die TemperatureAvailable in 38-Lead (5mm × 7mm) QFN and TSSOP Packages with the TSSOP Modified for Improve Voltage Operation

Dual, 2-Phase, Synchronous Controller with Low Value DCR Sensing and Temperature Compensation Features: Low Value DCR Current Sensing Programmable DCR Temperature Compensation ±0.5% 0.6V Output Voltage Accuracy Dual True Remote Sensing Differential Amplifiers Phase-Lockable Fixed Frequency 250kHz to 720kHz Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise Dual N-Channel MOSFET Synchronous Drive Wide VIN Range: 4.5V to 38V Operation Output Voltage Range with Low DCR: 0.6V to 3.5V, without Low DCR: 0.6V to 5V Adjustable Soft-Start Current Ramping or Tracking Foldback Output Current Limiting Clock Input and Output for Up to 12-Phase Operation Short-Circuit Soft Recovery Output Overvoltage Protection Power Good Output Voltage Monitor 40-Lead QFN Packages AEC-Q100 Qualified for Automotive Applications

17V, Dual 1A Synchronous Step-Down Regulator with Ultralow Quiescent Current Features: Dual Step-Down Outputs: 1A Per Channel Wide VIN Range: 2.7V to 17V Wide VOUT Range: 0.6V to VIN Up to 95% Efficiency No-Load IQ = 5μA with Both Channels Enabled; IQ < 4μA with Only One Channel Enabled High Efficiency, Low Dropout Operation (100% Duty Cycle)  Constant Frequency (1MHz/2.25MHz) with External Frequency Synchronization ±1% Output Voltage Accuracy Current Mode Operation for Excellent Line and Load Transient Response Phase Shift Programmable with External Clock Selectable Current Limit Internal Compensation and Soft-Start Compact 14-Pin DFN (3mm × 4mm) and 16-Lead MSOP Packages