Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump Features: 2.7V to 38V VIN Range IQ = 18μA Operating; 4μA in Shutdown 12V to 5V Efficiency = 81% Multimode Operation (2:1, 1:1, 1:2) with Automatic Mode Switching Low Noise, Constant Frequency Operation Pin Selectable Burst Mode® Operation VOUT: Fixed 3.3V, 5V or Adjustable (2.5V to 5V) IOUT Up to 250mA Overtemperature and Short-Circuit Protection Operating Junction Temperature: 150°C Maximum Thermally Enhanced 12-Pin MSOP and Low Profile 12-Pin (3mm × 4mm) DFN Packages AEC-Q100 Qualified for Automotive Applications

Wide VIN Range Dual Output 350mA Step-Down Charge Pump with Watchdog Timer Features:Input Voltage Range: 5.5V to 38VIndependently Enabled 5V and 3.3V Fixed Outputs5V Output: 100mA Max3.3V LDO Output: 250mA MaxMultimode Step-Down Charge Pump (2:1, 1:1) with Automatic Mode SwitchingLow Quiescent Current20μA with Both Outputs Regulating (No Load)0.5μA in ShutdownEngineered for Diagnostic Coverage in ISO26262 Systems1.1V Reference Output for System DiagnosticsPower-On Reset and Watchdog Controller with Adjustable TimingOvercurrent Fault Protection on Each OutputOvertemperature Protection150°C Max Operating Junction TemperatureThermally Enhanced 16-Lead MSOP Package

High Voltage, Low Quiescent Current Inverting Charge Pump Features:4.5V to 32V VIN RangeInverting Charge Pump Generates –VIN60μA Quiescent Current in Burst Mode® OperationCharge Pump Output Current Up to 100mA50kHz to 500kHz Programmable Oscillator FrequencyShort-Circuit/Thermal ProtectionLow Profile Thermally Enhanced 12-Pin MSOP Package

Low Noise Dual Supply with Boost and Inverting Charge Pumps Features:Boost Charge Pump Generates 2 • VIN_P (VIN_P Range: 4.5V to 16V)Inverting Charge Pump Generates –VIN_N (VIN_N Range: 4.5V to 32V)Low Noise Positive LDO Post Regulator Up to 50mALow Noise Negative LDO Post Regulator Up to 50mA135μA Quiescent Current in Burst Mode® Operation with Both LDO Regulators On50kHz to 500kHz Programmable Oscillator FrequencyStable with Ceramic CapacitorsShort-Circuit/Thermal ProtectionLow Profile 3mm × 5mm 18-Lead DFN and Thermally Enhanced 20-Lead TSSOP Packages

Addressable High Efficiency Bidirectional Multicell Battery Balancer Features: Bidirectional Synchronous Flyback Balancing of Up to 6 Li-Ion or LiFePO4 Cells in Series Up to 10A Balancing Current (Set by Externals) Integrates Seamlessly with the LTC680x Family of Multicell Battery Stack Monitors Bidirectional Architecture Minimizes Balancing Time and Power Dissipation Up to 92% Charge Transfer Efficiency Stackable Architecture Enables >800V Systems Uses Simple 2-Winding Transformers 1MHz Serial Interface with 4-Bit CRC Packet Error Checking Individually Addressable with 5-Bit Address Numerous Fault Protection Features 48-Lead Exposed Pad QFN and LQFP Packages AEC-Q100 Qualified for Automotive Application

Lead Acid Battery Balancer Features: Single IC Balances Up to Four 12V Lead-Acid Batteries in Series All NFET Design Stackable to Balance Larger Series Battery Packs Standalone Balancing Operation: Requires No External μP or Additional Control Circuitry Balancing Current Limited by External PTC Thermistor Continuous Mode and Timer Mode Programmable UV and OV Fault Thresholds Programmable Termination Time and Termination Voltage Thermally Enhanced 38-Lead TSSOP Package Click here to read "Life Extension Through Charge Equalization of Lead-Acid Batteries" on IEEE Xplore

Precision Six Input Supply Monitor Features: Ultralow Voltage Reset: VCC = 0.5V Guaranteed* Monitors Six Inputs Simultaneously: 5V, 3.3V, 2.5V, 1.8V, ADJ1, ADJ2 (LTC2908-A1) 3.3V, 2.5V, 1.8V, 1.5V, ADJ1, ADJ2 (LTC2908-B1) 2.5V, ADJ1, ADJ2, ADJ3, ADJ4, ADJ5 (LTC2908-C1) Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Overtemperature Internal VCC Auto Select Power Supply Glitch Immunity 200ms Reset Time Delay Active Low Open-Drain RST Output Low Profile (1mm) 8-Lead SOT-23 (ThinSOT™) and Plastic (3mm × 2mm) DFN Packages

Precision Six Input Supply Monitor Features: Ultralow Voltage Reset: VCC = 0.5V Guaranteed* Monitors Six Inputs Simultaneously: 5V, 3.3V, 2.5V, 1.8V, ADJ1, ADJ2 (LTC2908-A1) 3.3V, 2.5V, 1.8V, 1.5V, ADJ1, ADJ2 (LTC2908-B1) 2.5V, ADJ1, ADJ2, ADJ3, ADJ4, ADJ5 (LTC2908-C1) Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Overtemperature Internal VCC Auto Select Power Supply Glitch Immunity 200ms Reset Time Delay Active Low Open-Drain RST Output Low Profile (1mm) 8-Lead SOT-23 (ThinSOT™) and Plastic (3mm × 2mm) DFN Packages

Precision Six Input Supply Monitor Features: Ultralow Voltage Reset: VCC = 0.5V Guaranteed* Monitors Six Inputs Simultaneously: 5V, 3.3V, 2.5V, 1.8V, ADJ1, ADJ2 (LTC2908-A1) 3.3V, 2.5V, 1.8V, 1.5V, ADJ1, ADJ2 (LTC2908-B1) 2.5V, ADJ1, ADJ2, ADJ3, ADJ4, ADJ5 (LTC2908-C1) Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Overtemperature Internal VCC Auto Select Power Supply Glitch Immunity 200ms Reset Time Delay Active Low Open-Drain RST Output Low Profile (1mm) 8-Lead SOT-23 (ThinSOT™) and Plastic (3mm × 2mm) DFN Packages

Precision Triple/Dual Input UV, OV and Negative Voltage Monitor Features: Two Low Voltage Adjustable Inputs (0.5V) Pin Selectable Input Polarity Allows Negative and OV Monitoring Guaranteed Threshold Accuracy: ±1.5% 6.5V Shunt Regulator for High Voltage Operation Low 50μA Quiescent Current Buffered 1V Reference for Negative Supply Offset Input Glitch Rejection Adjustable Reset Timeout Period Selectable Internal Timeout Saves Components Open-Drain RST Output Accurate UVLO for 2.5V, 3.3V, 5V Systems Ultralow Voltage Reset: VCC = 0.5V Guaranteed Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages

Precision Triple/Dual Input UV, OV and Negative Voltage Monitor Features: Two Low Voltage Adjustable Inputs (0.5V) Pin Selectable Input Polarity Allows Negative and OV Monitoring Guaranteed Threshold Accuracy: ±1.5% 6.5V Shunt Regulator for High Voltage Operation Low 50μA Quiescent Current Buffered 1V Reference for Negative Supply Offset Input Glitch Rejection Adjustable Reset Timeout Period Selectable Internal Timeout Saves Components Open-Drain RST Output Accurate UVLO for 2.5V, 3.3V, 5V Systems Ultralow Voltage Reset: VCC = 0.5V Guaranteed Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages

Precision Triple/Dual Input UV, OV and Negative Voltage Monitor Features: Two Low Voltage Adjustable Inputs (0.5V) Pin Selectable Input Polarity Allows Negative and OV Monitoring Guaranteed Threshold Accuracy: ±1.5% 6.5V Shunt Regulator for High Voltage Operation Low 50μA Quiescent Current Buffered 1V Reference for Negative Supply Offset Input Glitch Rejection Adjustable Reset Timeout Period Selectable Internal Timeout Saves Components Open-Drain RST Output Accurate UVLO for 2.5V, 3.3V, 5V Systems Ultralow Voltage Reset: VCC = 0.5V Guaranteed Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages

Precision Triple/Dual Input UV, OV and Negative Voltage Monitor Features: Two Low Voltage Adjustable Inputs (0.5V) Pin Selectable Input Polarity Allows Negative and OV Monitoring Guaranteed Threshold Accuracy: ±1.5% 6.5V Shunt Regulator for High Voltage Operation Low 50μA Quiescent Current Buffered 1V Reference for Negative Supply Offset Input Glitch Rejection Adjustable Reset Timeout Period Selectable Internal Timeout Saves Components Open-Drain RST Output Accurate UVLO for 2.5V, 3.3V, 5V Systems Ultralow Voltage Reset: VCC = 0.5V Guaranteed Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages

Precision Triple/Dual Input UV, OV and Negative Voltage Monitor Features: Two Low Voltage Adjustable Inputs (0.5V) Pin Selectable Input Polarity Allows Negative and OV Monitoring Guaranteed Threshold Accuracy: ±1.5% 6.5V Shunt Regulator for High Voltage Operation Low 50μA Quiescent Current Buffered 1V Reference for Negative Supply Offset Input Glitch Rejection Adjustable Reset Timeout Period Selectable Internal Timeout Saves Components Open-Drain RST Output Accurate UVLO for 2.5V, 3.3V, 5V Systems Ultralow Voltage Reset: VCC = 0.5V Guaranteed Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages

Precision Triple/Dual Input UV, OV and Negative Voltage Monitor Features: Two Low Voltage Adjustable Inputs (0.5V) Pin Selectable Input Polarity Allows Negative and OV Monitoring Guaranteed Threshold Accuracy: ±1.5% 6.5V Shunt Regulator for High Voltage Operation Low 50μA Quiescent Current Buffered 1V Reference for Negative Supply Offset Input Glitch Rejection Adjustable Reset Timeout Period Selectable Internal Timeout Saves Components Open-Drain RST Output Accurate UVLO for 2.5V, 3.3V, 5V Systems Ultralow Voltage Reset: VCC = 0.5V Guaranteed Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages

Precision Triple/Dual Input UV, OV and Negative Voltage Monitor Features: Two Low Voltage Adjustable Inputs (0.5V) Pin Selectable Input Polarity Allows Negative and OV Monitoring Guaranteed Threshold Accuracy: ±1.5% 6.5V Shunt Regulator for High Voltage Operation Low 50μA Quiescent Current Buffered 1V Reference for Negative Supply Offset Input Glitch Rejection Adjustable Reset Timeout Period Selectable Internal Timeout Saves Components Open-Drain RST Output Accurate UVLO for 2.5V, 3.3V, 5V Systems Ultralow Voltage Reset: VCC = 0.5V Guaranteed Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages

Octal Positive/Negative Voltage Monitor Features: 8 Low Voltage Adjustable Inputs (0.5V) Guaranteed Threshold Accuracy: ±1.5% Input Glitch Rejection Pin Selectable Input Polarity Allows Negative and OV Monitoring Buffered 1V Reference Output Adjustable Reset Timeout with Timeout Disable 50µA Quiescent Current Open Drain RST and RST Outputs Guaranteed RST and RST for VCC ≥ 1V Available in 16-Lead SSOP and 16-Lead (5mm × 3mm) DFN Packages

Precision Triple Supply Monitor with Power-Fail Comparator Features: Ultralow Voltage Reset: VCC = 0.5V Guaranteed Monitors Three Inputs Simultaneously: 3.3V, 5V, ADJ (LTC2911-1) 3.3V, 2.5V, ADJ (LTC2911-2) 3.3V, 1.8V, ADJ (LTC2911-3) 3.3V, 1.2V, ADJ (LTC2911-4) 3.3V, ADJ, ADJ (LTC2911-5) ±1.5% Threshold Accuracy Power-Fail Monitor RST State Can Be Held for Margining Low Supply Current: 30μA Typical Input Glitch Immunity Adjustable Reset Timeout Period Selectable Internal Timeout Saves Components Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages 

Precision Triple Supply Monitor with Power-Fail Comparator Features: Ultralow Voltage Reset: VCC = 0.5V Guaranteed Monitors Three Inputs Simultaneously: 3.3V, 5V, ADJ (LTC2911-1) 3.3V, 2.5V, ADJ (LTC2911-2) 3.3V, 1.8V, ADJ (LTC2911-3) 3.3V, 1.2V, ADJ (LTC2911-4) 3.3V, ADJ, ADJ (LTC2911-5) ±1.5% Threshold Accuracy Power-Fail Monitor RST State Can Be Held for Margining Low Supply Current: 30μA Typical Input Glitch Immunity Adjustable Reset Timeout Period Selectable Internal Timeout Saves Components Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages 

Precision Triple Supply Monitor with Power-Fail Comparator Features: Ultralow Voltage Reset: VCC = 0.5V Guaranteed Monitors Three Inputs Simultaneously: 3.3V, 5V, ADJ (LTC2911-1) 3.3V, 2.5V, ADJ (LTC2911-2) 3.3V, 1.8V, ADJ (LTC2911-3) 3.3V, 1.2V, ADJ (LTC2911-4) 3.3V, ADJ, ADJ (LTC2911-5) ±1.5% Threshold Accuracy Power-Fail Monitor RST State Can Be Held for Margining Low Supply Current: 30μA Typical Input Glitch Immunity Adjustable Reset Timeout Period Selectable Internal Timeout Saves Components Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages