High Voltage High Current Hot Swap Controller Features: Allows Safe Board Insertion into Live Backplane Wide Operating Voltage Range: 6.5V to 80V Drives Two Gates for High Power Applications Configurable Parallel, Staged Start or Single MOSFET Modes Adjustable Precision Current Limit: 6mV to 20mV Current Foldback Limits MOSFET Power SOA Timer Optimizes MOSFET Capability Monitors VGS and VDS for MOSFET Health 12V Gate Drive for Lower MOSFET RDS(ON) Parallelable Controllers for Very High Current Levels Available in 24-Lead Narrow SSOP and 24-Pin 4mm × 5mm QFN Packages

PCI-Bus with 3.3V Auxiliary Hot Swap Controller Features: Allows Safe Board Insertion and Removal from a Live PCI Slot Controls 3.3V, 5V, –12V, 12V and 3.3V Auxiliary Supplies Independent 3.3V Auxiliary Supply Hot Swap™ Controller Adjustable Foldback Current Limit with Circuit Breaker Adjustable Supply Voltage Power-Up Rate High Side Drive for External N-Channel FETs –12V and 12V On-Chip Switches Fault and Power Good Outputs

PCI-Bus with 3.3V Auxiliary Hot Swap Controller Features: Allows Safe Board Insertion and Removal from a Live PCI Slot Controls 3.3V, 5V, –12V, 12V and 3.3V Auxiliary Supplies Independent 3.3V Auxiliary Supply Hot Swap™ Controller Adjustable Foldback Current Limit with Circuit Breaker Adjustable Supply Voltage Power-Up Rate High Side Drive for External N-Channel FETs –12V and 12V On-Chip Switches Fault and Power Good Outputs

Dual Slot Hot Swap Controller for PCI Express Features: Allows Live Insertion into PCI Express® Backplane Controls Two Independent PCI Express Slots Independent Control of Main and Auxiliary Supplies 20V Rating for 12V Supply Input Pins Integrated 0.25Ω AUX Switches Limits Fault Current in ≤1µs Force On Test Mode Adjustable Supply Voltage Power-Up Rate High Side Drivers for N-Channel MOSFETs Thermal Shutdown Protection Available in 38-Lead QFN and 36-Lead SSOP Packages

Dual Slot Hot Swap Controller for PCI Express Features: Allows Live Insertion into PCI Express® Backplane Controls Two Independent PCI Express Slots Independent Control of Main and Auxiliary Supplies 20V Rating for 12V Supply Input Pins Integrated 0.25Ω AUX Switches Limits Fault Current in ≤1µs Force On Test Mode Adjustable Supply Voltage Power-Up Rate High Side Drivers for N-Channel MOSFETs Thermal Shutdown Protection Available in 38-Lead QFN and 36-Lead SSOP Packages

Dual Slot Hot Swap Controller for PCI Express Features: Allows Live Insertion into PCI Express® Backplane Controls Two Independent PCI Express Slots Independent Control of Main and Auxiliary Supplies 20V Rating for 12V Supply Input Pins Integrated 0.25Ω AUX Switches Limits Fault Current in ≤1µs Force On Test Mode Adjustable Supply Voltage Power-Up Rate High Side Drivers for N-Channel MOSFETs Thermal Shutdown Protection Available in 38-Lead QFN and 36-Lead SSOP Packages

Rugged, CompactPCI Bus Hot Swap Controllers Features: Controls –12V, 3.3V, 5V and 12V Supplies ±14.4V Absolute Maximum Rating for 12VIN and –12VIN Input Pins Insensitive to Supply Voltage Transients Adjustable Foldback Current Limit with Circuit Breaker LOCAL_PCI_RST# Logic On-Chip PRECHARGE Output Biases I/O Pins During Card Insertion and Extraction LTC4244-1 Designed for Applications without –12V Available in 20-Lead Narrow SSOP Package

Rugged, CompactPCI Bus Hot Swap Controllers Features: Controls –12V, 3.3V, 5V and 12V Supplies ±14.4V Absolute Maximum Rating for 12VIN and –12VIN Input Pins Insensitive to Supply Voltage Transients Adjustable Foldback Current Limit with Circuit Breaker LOCAL_PCI_RST# Logic On-Chip PRECHARGE Output Biases I/O Pins During Card Insertion and Extraction LTC4244-1 Designed for Applications without –12V Available in 20-Lead Narrow SSOP Package

Rugged, CompactPCI Bus Hot Swap Controllers Features: Controls –12V, 3.3V, 5V and 12V Supplies ±14.4V Absolute Maximum Rating for 12VIN and –12VIN Input Pins Insensitive to Supply Voltage Transients Adjustable Foldback Current Limit with Circuit Breaker LOCAL_PCI_RST# Logic On-Chip PRECHARGE Output Biases I/O Pins During Card Insertion and Extraction LTC4244-1 Designed for Applications without –12V Available in 20-Lead Narrow SSOP Package

Rugged, CompactPCI Bus Hot Swap Controllers Features: Controls –12V, 3.3V, 5V and 12V Supplies ±14.4V Absolute Maximum Rating for 12VIN and –12VIN Input Pins Insensitive to Supply Voltage Transients Adjustable Foldback Current Limit with Circuit Breaker LOCAL_PCI_RST# Logic On-Chip PRECHARGE Output Biases I/O Pins During Card Insertion and Extraction LTC4244-1 Designed for Applications without –12V Available in 20-Lead Narrow SSOP Package

Multiple Supply Hot Swap Controller with I2C Compatible Monitoring Features: Allows Safe Insertion into Live CompactPCI™ or PCI Express™ Backplane 8-Bit ADC Monitors Current and Voltage I2C™/SMBus Interface dI/dt Controlled Soft Start Simultaneous or Sequenced Turn-On ±20V Absolute Maximum Rating for ±12V Supplies No External Gate Capacitor Required Dual-Level Circuit Breaker and Current Limit Bus Precharge Output Power Good Input with Timeout Optional Latch-off or Autoretry After Faults Alerts Host After Faults Integrated LOCAL_PCI_RST# Logic 36-Pin SSOP and 38-Pin (5mm × 7mm) QFN Packages

Multiple Supply Hot Swap Controller with I2C Compatible Monitoring Features: Allows Safe Insertion into Live CompactPCI™ or PCI Express™ Backplane 8-Bit ADC Monitors Current and Voltage I2C™/SMBus Interface dI/dt Controlled Soft Start Simultaneous or Sequenced Turn-On ±20V Absolute Maximum Rating for ±12V Supplies No External Gate Capacitor Required Dual-Level Circuit Breaker and Current Limit Bus Precharge Output Power Good Input with Timeout Optional Latch-off or Autoretry After Faults Alerts Host After Faults Integrated LOCAL_PCI_RST# Logic 36-Pin SSOP and 38-Pin (5mm × 7mm) QFN Packages

30m RON 12V Octal Electronic Circuit Breaker with SPI Interface Features: Eight Channels – 8× SPST Circuit Breaker Threshold Up to 1.5A Programmable in 50mA Increments 20% Accurate Threshold 30mΩ On Resistance Operating Range: 0V to 13.2V SPI Interface with Daisy-Chain Mode Common Open-Drain FAULT Status Output 24-Lead 3mm × 5mm QFN

30m RON 12V Octal Electronic Circuit Breaker with SPI Interface Features: Eight Channels – 8× SPST Circuit Breaker Threshold Up to 1.5A Programmable in 50mA Increments 20% Accurate Threshold 30mΩ On Resistance Operating Range: 0V to 13.2V SPI Interface with Daisy-Chain Mode Common Open-Drain FAULT Status Output 24-Lead 3mm × 5mm QFN

65V Dual Electronic Circuit Breaker with Current Monitors Features: High Voltage Dual SPST, Current Sharing Allowed 5% Accurate Analog Current Monitor Outputs Adjustable Circuit Breaker Thresholds to 1.2A Filtered (50μs) Primary OC Threshold Fast (2μs) Secondary OC Threshold 75mΩ Integrated Switches Automatic Inrush Control Short-Circuit Protection Precision Enable Inputs Open-Drain, Ready Status Outputs 16-Lead 3mm × 3mm LQFN and 12-Lead (Skipped Lead) 3mm × 4mm LQFN

Negative Voltage Hot Swap Controllers in SOT-23 Features: Allows Safe Board Insertion and Removal from a Live –48V Backplane Floating Topology Permits Very High Voltage Operation Low Profile (1mm) ThinSOT™ Package Programmable Analog Current Limit with Circuit Breaker Timer Fast Response Time Limits Peak Fault Current Programmable Timer Programmable Undervoltage/Overvoltage Protection

Negative Voltage Hot Swap Controllers in SOT-23 Features: Allows Safe Board Insertion and Removal from a Live –48V Backplane Floating Topology Permits Very High Voltage Operation Low Profile (1mm) ThinSOT™ Package Programmable Analog Current Limit with Circuit Breaker Timer Fast Response Time Limits Peak Fault Current Programmable Timer Programmable Undervoltage/Overvoltage Protection

Negative Voltage Hot Swap Controllers in SOT-23 Features: Allows Safe Board Insertion and Removal from a Live –48V Backplane Floating Topology Permits Very High Voltage Operation Programmable Analog Current Limit with Circuit Breaker Timer Fast Response Time Limits Peak Fault Current Improved Ruggedness Shunt Regulator Programmable Timer Programmable Undervoltage/Overvoltage Protection Low Profile 6-Lead SOT-23 (ThinSOT™) Package

Negative Voltage Hot Swap Controllers in SOT-23 Features: Allows Safe Board Insertion and Removal from a Live –48V Backplane Floating Topology Permits Very High Voltage Operation Low Profile (1mm) ThinSOT™ Package Programmable Analog Current Limit with Circuit Breaker Timer Fast Response Time Limits Peak Fault Current Programmable Timer Programmable Undervoltage/Overvoltage Protection

Negative Voltage Hot Swap Controllers in SOT-23 Features: Allows Safe Board Insertion and Removal from a Live –48V Backplane Floating Topology Permits Very High Voltage Operation Low Profile (1mm) ThinSOT™ Package Programmable Analog Current Limit with Circuit Breaker Timer Fast Response Time Limits Peak Fault Current Programmable Timer Programmable Undervoltage/Overvoltage Protection