80V Synchronous 4-Switch Buck-Boost DC/DC Slave Controller for LT8708 Multiphase System Features: Slave Chip of LT8708 to Deliver Additional Power Good Current Matching to the Average Output Current of LT8708 Through Current Regulation Easily Paralleled with LT8708 Through Four Pins Synchronized Start-Up with LT8708 Same Conduction Modes as LT8708 Synchronous Rectification: Up to 98% Efficiency Frequency Range: 100kHz to 400kHz Available in 40-Lead (5mm × 8mm) QFN with High Voltage Pin Spacing and 64-Lead (10mm × 10mm) eLQFP AEC-Q100 in Progress

80V Synchronous 4-Switch Buck-Boost DC/DC Controller with Bidirectional Capability Features: Single Inductor Allows VIN Above, Below, or Equal to VOUT Six Independent Forms of Regulation VIN Current (Forward and Reverse) VOUT Current (Forward and Reverse) VIN and VOUT Voltage Forward and Reverse Discontinuous Conduction Mode Supported Supports MODE and DIR Pin Changes While Switching VINCHIP Range 2.8V (Need EXTVCC > 6.4V) to 80V VOUT Range: 1.3V to 80V Synchronous Rectification: Up to 99% Efficiency Available in 40-Lead (5mm × 8mm) QFN with High Voltage Pin Spacing and 64-Lead (10mm × 10mm) eLQFP AEC-Q100 in Progress

80V Synchronous 4-Switch Buck-Boost DC/DC Slave Controller for LT8708 Multiphase System Features: Slave Chip of LT8708 to Deliver Additional Power Good Current Matching to the Average Output Current of LT8708 Through Current Regulation Easily Paralleled with LT8708 Through Four Pins Synchronized Start-Up with LT8708 Same Conduction Modes as LT8708 Synchronous Rectification: Up to 98% Efficiency Frequency Range: 100kHz to 400kHz Available in 40-Lead (5mm × 8mm) QFN with High Voltage Pin Spacing and 64-Lead (10mm × 10mm) eLQFP AEC-Q100 in Progress

Negative Input Synchronous Multi-Topology DC/DC Controller Features: Wide Negative Input Range: –4.5V to –80V Rail-to-Rail Output Current Monitor and Control Input Voltage Regulation for High Impedance Inputs Power Good Indication Pin MODE Pin for Forced CCM (Continuous Conduction Mode) or Pulse-Skipping/DCM (Discontinuous Conduction Mode) Operation Switching Frequency Up to 750kHz Easily Configurable as a Buck, Boost, Buck-Boost, or Inverting Converter with a Single Feedback Pin Can be Synchronized to an External Clock High Gain EN/FBIN Pin Accepts Slowly Varying Input Signals 20-Lead TSSOP Package

Synchronous SEPIC/Inverting/Boost Controller with Output Current Control Features: Wide Input Range: 4.5V to 80V Rail-to-Rail Output Current Monitor and Control Input Voltage Regulation for High Impedance Inputs C/10 or Power Good Indication Pin MODE Pin for Forced CCM or Pulse-Skipping Operation Switching Frequency Up to 750kHz Easily Configurable as a Boost, SEPIC, Inverting or Flyback Converter with Single Feedback Pin Can Be Synchronized to External Clock High Gain EN/FBIN Pin Accepts Slowly Varying Input Signals 20-Lead TSSOP Package

Dual High Efficiency SO-16 Step-Down Switching Regulator Controllers Features: Dual Outputs LTC1143, LTC1143L: 3.3V, 5V LTC1143L-ADJ: Dual Adjustable Very High Efficiency: Over 95% Possible Current Mode Operation for Excellent Line and Load Transient Response High Efficiency Maintained over Three Decades of Output Current Low Standby Current at Light Loads: 160µA/Output Logic-Controlled Shutdown (LTC1143, LTC1143L) Wide VIN Range: 3.5V to 16V (LTC1143L, LTC1143L-ADJ) Very Low Dropout Operation: 100% Duty Cycle Available in Narrow 16-Pin SO Package

High Efficiency Step-Down Switching Regulator Controllers Features: Very High Efficiency: Over 95% Possible Wide VIN Range: 3.5V to 16V Current Mode Operation for Excellent Line and Load Transient Response High Efficiency Maintained Over Three Decades of Output Current Low 160µA Standby Current at Light Loads Logic Controlled Micropower Shutdown: IQ <20µA Short-Circuit Protection Very Low Dropout Operation: 100% Duty Cycle High Efficiency in a Small Amount of Board Space Output Can Be Externally Held High in Shutdown Available in 8-Pin SO Package

High Efficiency Synchronous Step-Down Switching Regulators Features: Ultra-High Efficiency: Over 95% Possible Current-Mode Operation for Excellent Line and Load Transient Response High Efficiency Maintained Over Three Decades of Output Current Low 160µA Standby Current at Light Loads Logic Controlled Micropower Shutdown: IQ <20µA Wide VIN Range: 3.5V to 20V Short-Circuit Protection Very Low Dropout Operation: 100% Duty Cycle Synchronous FET Switching for High Efficiency Adaptive Nonoverlap Gate Drives Output Can Be Externally Held High in Shutdown Available in 14-Pin Narrow SO Package

High Efficiency Step-Down and Inverting DC/DC Converter Features:High Efficiency: Up to 94%Peak Inductor Current Independent of Inductor ValueShort-Circuit ProtectionOptimized for 5V to –5V ApplicationsWide VIN Range: 4V to 18.5VLow Dropout OperationLow-Battery DetectorPin Selectable Current LimitInternal 0.9Ω Power Switch: VIN = 9VOnly Four External Components Required130µA Standby CurrentActive Low Micropower Shutdown

High Efficiency Step-Down and Inverting DC/DC Converter Features:High Efficiency: Up to 94%Peak Inductor Current Independent of Inductor ValueShort-Circuit ProtectionOptimized for 5V to –5V ApplicationsWide VIN Range: 4V to 18.5VLow Dropout OperationLow-Battery DetectorPin Selectable Current LimitInternal 0.9Ω Power Switch: VIN = 9VOnly Four External Components Required130µA Standby CurrentActive Low Micropower Shutdown