No RSENSE Electronic Circuit Breaker Features: Fast 1µs Response Circuit Breaker 3 Selectable Circuit Breaker Thresholds No Sense Resistor Required Dual Level Overcurrent Fault Protection Controls Load Voltages from 0V to 6V High Side Drive for External N-Channel FET Undervoltage Lockout READY Pin Signals When Circuit Breaker Armed Small Plastic (3mm × 2mm) DFN and TSOT-23 (ThinSOT™) Packages

Ultralow Voltage Hot Swap Controller Features: Allows Safe Board Insertion and Removal from a Live Backplane Controls Load Voltages from 0V to 6V Fast Response Limits Peak Fault Current Adjustable Analog Current Limit Adjustable Soft-Start with Inrush Current Limiting Adjustable Response Time for Overcurrent Protection Low Circuit Breaker Trip Threshold: 25mV No External Gate Capacitor Required Internal Charge Pump for N-Channel MOSFET Adjustable Output Power-Up Rate RESET and FAULT Output 10-Lead MSOP and 12-Lead (4mm × 3mm) DFN Packages

Ultralow Voltage Hot Swap Controller Features: Allows Safe Board Insertion and Removal from a Live Backplane Controls Load Voltages from 0V to 6V Fast Response Limits Peak Fault Current Adjustable Analog Current Limit Adjustable Soft-Start with Inrush Current Limiting Adjustable Response Time for Overcurrent Protection Low Circuit Breaker Trip Threshold: 25mV No External Gate Capacitor Required Internal Charge Pump for N-Channel MOSFET Adjustable Output Power-Up Rate RESET and FAULT Output 10-Lead MSOP and 12-Lead (4mm × 3mm) DFN Packages

2A Integrated Hot Swap Controller Features: Small Footprint 33mΩ MOSFET with RSENSE Wide Operating Voltage Range: 2.9V to 26.5V Adjustable, 5% 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 LTC4232 (DFN Package Only) Available in 20-Lead TSSOP and 16-Lead 5mm × 3mm DFN Packages

Hot Swap Controller Features: Wide Operating Voltage Range: 2.9V to 26.5V Adjustable, 5% Accurate 15mV Current Limit Current Monitor Output Adjustable Current Limit Timer Before Fault Power Good and Fault Outputs Adjustable Inrush Current Control 2% Accurate Undervoltage and Overvoltage Protection Available in 16-Lead SSOP and 16-Pin 5mm × 3mm DFN Packages

Hot Swap Controller Features: Wide Operating Voltage Range: 2.9V to 26.5V Adjustable, 5% Accurate 15mV Current Limit Current Monitor Output Adjustable Current Limit Timer Before Fault Power Good and Fault Outputs Adjustable Inrush Current Control 2% Accurate Undervoltage and Overvoltage Protection Available in 16-Lead SSOP and 16-Pin 5mm × 3mm DFN Packages

5A Integrated Hot Swap Controller Features: Small Footprint 33m MOSFET with RSENSE Available in Preset 12V and 5V Versions 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 Available in 16-Lead 5mm × 3mm DFN Packages

Dual Hot Swap Controller/Power Sequencer with Dual Speed, Dual Level Fault Protection Features: Allows Safe Board Insertion and Removal from a Live Backplane Configurable Power Supply Sequencing Soft-Start with Current Foldback Limits Inrush Current No External Gate Capacitor Required Adjustable Dual Level Circuit Breaker Protection Controls Supply Voltages from 1V to 13.5V Independent N-Channel MOSFET High Side Drivers FB Pin Monitors VOUT for Overvoltage Protection Latch Off or Automatic Retry on Current Fault FAULT and PWRGD Outputs Narrow 16-Pin SSOP Package

Dual Supply Hot Swap Controller for Advanced Mezzanine Card Features: Allows Safe Insertion into Live AMC or MicroTCA Backplane Controls 12V Main and 3.3V Auxiliary Supplies Limits Peak Fault Current in ≤1µs Adjustable Current Limit with Circuit Breaker Integrated 0.3Ω AUX Switch High Side Current Sense Gate Drive for External N-Channel MOSFET Adjustable Response Time for Overcurrent Protection Adjustable Supply Voltage Power-Up Rate Thermal Shutdown Protection LTC4223-1: Latch Off After Fault LTC4223-2: Automatic Retry After Fault 16-Lead SSOP and 5mm × 4mm DFN Packages

Wide Operating Range Dual Hot Swap Controller Features:Allows Safe Board Insertion into Live BackplaneSelectable Current Limit and Dual-Rate Timer Accommodate Load SurgesFast Response Limits Peak Fault CurrentWide Operating Voltage Range: 4.5V to 44VOptional Auto-Retry or Latchoff after Overcurrent FaultHigh Side Drive for External N-Channel MOSFETAllows Parallel Power Paths for High Current ApplicationsAvailable in 16-Pin QFN (3mm × 3mm) and MSOP Packages

Wide Operating Range Dual Hot Swap Controller Features:Allows Safe Board Insertion into Live BackplaneSelectable Current Limit and Dual-Rate Timer Accommodate Load SurgesFast Response Limits Peak Fault CurrentWide Operating Voltage Range: 4.5V to 44VOptional Auto-Retry or Latchoff after Overcurrent FaultHigh Side Drive for External N-Channel MOSFETAllows Parallel Power Paths for High Current ApplicationsAvailable in 16-Pin QFN (3mm × 3mm) and MSOP Packages

Dual Ideal Diode and Single Hot Swap Controller Features: Power Path and Inrush Current Control for Redundant Supplies Low Loss Replacement for Power Schottky Diodes Allows Safe Hot Swapping from a Live Backplane 2.9V to 18V Operating Range Controls N-Channel MOSFETs Limits Peak Fault Current in ≤1μs 0.5μs Ideal Diode Turn-On and Reverse Turn-Off Time Adjustable Current Limit with Circuit Breaker Smooth Switchover without Oscillation Adjustable Current Limit Fault Delay Fault and Power Status Output 20-Lead 4mm × 5mm QFN and 16-Lead SSOP Packages

Dual Ideal Diode and Single Hot Swap Controller Features: Power Path and Inrush Current Control for Redundant Supplies Low Loss Replacement for Power Schottky Diodes Allows Safe Hot Swapping from a Live Backplane 2.9V to 18V Operating Range Controls N-Channel MOSFETs Limits Peak Fault Current in ≤1μs 0.5μs Ideal Diode Turn-On and Reverse Turn-Off Time Adjustable Current Limit with Circuit Breaker Smooth Switchover without Oscillation Adjustable Current Limit Fault Delay Fault and Power Status Output 20-Lead 4mm × 5mm QFN and 16-Lead SSOP Packages

Ideal Diode and Hot Swap Controller Features: Ideal Diode and Inrush Current Control for Redundant Supplies Low Loss Replacement for Power Schottky Diode Protects Output Voltage from Input Brownouts Allows Safe Hot Swapping from a Live Backplane 2.9V to 18V Operating Range Controls Back-to-Back N-Channel MOSFETs Limits Peak Fault Current in ≤1μs Adjustable Current Limit with Foldback Adjustable Start-Up and Current Limit Fault Delay 0.5μs Ideal Diode Turn-On and Turn-Off Time Undervoltage and Overvoltage Protection Status, Fault and Power Good Outputs Pin Selectable Latch Off or Automatic Retry After Fault 24-Lead 4mm × 5mm QFN and SSOP Packages

Ideal Diode and Hot Swap Controller Features: Ideal Diode and Inrush Current Control for Redundant Supplies Low Loss Replacement for Power Schottky Diode Protects Output Voltage from Input Brownouts Allows Safe Hot Swapping from a Live Backplane 2.9V to 18V Operating Range Controls Back-to-Back N-Channel MOSFETs Limits Peak Fault Current in ≤1μs Adjustable Current Limit with Foldback Adjustable Start-Up and Current Limit Fault Delay 0.5μs Ideal Diode Turn-On and Turn-Off Time Undervoltage and Overvoltage Protection Status, Fault and Power Good Outputs Pin Selectable Latch Off or Automatic Retry After Fault 24-Lead 4mm × 5mm QFN and SSOP Packages

Ideal Diode and Hot Swap Controller Features: Ideal Diode and Inrush Current Control for Redundant Supplies Low Loss Replacement for Power Schottky Diode Protects Output Voltage from Input Brownouts Allows Safe Hot Swapping from a Live Backplane 2.9V to 18V Operating Range Controls Back-to-Back N-Channel MOSFETs Limits Peak Fault Current in ≤1μs Adjustable Current Limit with Foldback Adjustable Start-Up and Current Limit Fault Delay 0.5μs Ideal Diode Turn-On and Turn-Off Time Undervoltage and Overvoltage Protection Status, Fault and Power Good Outputs Pin Selectable Latch Off or Automatic Retry After Fault 24-Lead 4mm × 5mm QFN and SSOP Packages

Triple Hot Swap Controller with Multifunction Current Control Features: Allows Safe Board Insertion and Removal from a Live Backplane Controls Three Supply Voltages from 1.7V to 16.5V with VCC1 ≥ VCC2 ≥ VCC3 Programmable Soft-Start with Inrush Current Limiting, No External Gate Capacitor Required Faster Turn-Off Time with No Gate Capacitor Dual Level Overcurrent Fault Protection Programmable Overcurrent Response Time Programmable Overvoltage Protection Automatic Retry or Latched Mode Operation Independent N-Channel FET High Side Drivers User-Programmable Supply Voltage Power-Up Rate FBn Pin Monitors VOUTn and Signals RESETn Glitch Filter Eliminates Spurious RESETn Signals

Micropower Hot Swap Controller Features: Enables Safe Board Insertion and Removal from a Power Supply 4µA Supply Current 0.3µA Shutdown Current Wide Operating Voltage Range: 2.7V to 36V Reverse Supply Protection to –40V Adjustable Analog Current Limit with Circuit Breaker Automatic Retry or Latchoff on Current Fault Overvoltage and Undervoltage Monitoring Controls Single or Back-to-Back N-Channel MOSFETs 12-Lead MSOP and 3mm × 3mm QFN Packages AEC-Q100 Qualified for Automotive Applications

Micropower Hot Swap Controller Features: Enables Safe Board Insertion and Removal from a Power Supply 4µA Supply Current 0.3µA Shutdown Current Wide Operating Voltage Range: 2.7V to 36V Reverse Supply Protection to –40V Adjustable Analog Current Limit with Circuit Breaker Automatic Retry or Latchoff on Current Fault Overvoltage and Undervoltage Monitoring Controls Single or Back-to-Back N-Channel MOSFETs 12-Lead MSOP and 3mm × 3mm QFN Packages AEC-Q100 Qualified for Automotive Applications

Micropower Hot Swap Controller Features: Enables Safe Board Insertion and Removal from a Power Supply 4µA Supply Current 0.3µA Shutdown Current Wide Operating Voltage Range: 2.7V to 36V Reverse Supply Protection to –40V Adjustable Analog Current Limit with Circuit Breaker Automatic Retry or Latchoff on Current Fault Overvoltage and Undervoltage Monitoring Controls Single or Back-to-Back N-Channel MOSFETs 12-Lead MSOP and 3mm × 3mm QFN Packages AEC-Q100 Qualified for Automotive Applications