Precision Quad Supply Monitor in 6-Lead SOT-23 Features: Ultralow Voltage Reset: VCC = 0.5V Guaranteed Monitor Four Inputs Simultaneously 3.3V, 2.5V, 1.8V, ADJ (LTC2903-A1) 5V, 3.3V, 2.5V, 1.8V (LTC2903-B1) 5V, 3.3V, 1.8V, –5.2V (LTC2903-C1) 3.3V, ADJ, ADJ, ADJ (LTC2903-D1) 5V, ADJ, ADJ, ADJ (LTC2903-E1) Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage over Temperature 10% (A1, B1, C1) and 5% (D1, E1) Undervoltage Monitoring Low Supply Current: 20µA Typical 200ms Reset Time Delay Active Low Open-Drain RST Output Power Supply Glitch Immunity Low Profile (1mm) SOT-23 (ThinSOT™) Package

Precision Dual Supply Monitor with Pin-Selectable Thresholds Features: Monitors Two Inputs Simultaneously Nine Threshold Combinations Three Supply Tolerances (5%, 7.5%, 10%) Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature Internal VCC Auto Select Power Supply Glitch Immunity 200ms Reset Time Delay (LTC2904 Only) Adjustable Reset Time Delay (LTC2905 Only) Open Drain RST Output Guaranteed RST for V1 ≥ 1V or V2 ≥ 1V Low Profile (1mm) SOT-23 (ThinSOT™) and Plastic (3mm × 2mm) DFN Packages

Precision Dual Supply Monitor with Pin-Selectable Thresholds Features: Monitors Two Inputs Simultaneously Nine Threshold Combinations Three Supply Tolerances (5%, 7.5%, 10%) Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature Internal VCC Auto Select Power Supply Glitch Immunity 200ms Reset Time Delay (LTC2904 Only) Adjustable Reset Time Delay (LTC2905 Only) Open Drain RST Output Guaranteed RST for V1 ≥ 1V or V2 ≥ 1V Low Profile (1mm) SOT-23 (ThinSOT™) and Plastic (3mm × 2mm) DFN Packages

Precision Dual Supply Monitor with Pin-Selectable Thresholds Features: Monitors Two Inputs Simultaneously Nine Threshold Combinations Three Supply Tolerances (5%, 7.5%, 10%) Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature Internal VCC Auto Select Power Supply Glitch Immunity 200ms Reset Time Delay (LTC2904 Only) Adjustable Reset Time Delay (LTC2905 Only) Open Drain RST Output Guaranteed RST for V1 ≥ 1V or V2 ≥ 1V Low Profile (1mm) SOT-23 (ThinSOT™) and Plastic (3mm × 2mm) DFN Packages

Precision Dual Supply Monitors with One Pin-Selectable Threshold and One Adjustable Input Features: Monitors Two Inputs Simultaneously Three Threshold Selections for 5V, 3.3V or 2.5V Supplies Low Voltage Adjustable Input (0.5V) Three Supply Tolerances (5%, 7.5%, 10%) Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature Internal VCC Auto Select Power Supply Glitch Immunity 200ms Reset Time Delay (LTC2906 Only) Adjustable Reset Time Delay (LTC2907 Only) Open Drain RST Output Guaranteed RST for V1 >= 1V or VCC >=1V Low Profile (1mm) SOT-23 (ThinSOT™) and Plastic (3mm x 2mm) DFN Packages

Precision Dual Supply Monitors with One Pin-Selectable Threshold and One Adjustable Input Features: Monitors Two Inputs Simultaneously Three Threshold Selections for 5V, 3.3V or 2.5V Supplies Low Voltage Adjustable Input (0.5V) Three Supply Tolerances (5%, 7.5%, 10%) Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature Internal VCC Auto Select Power Supply Glitch Immunity 200ms Reset Time Delay (LTC2906 Only) Adjustable Reset Time Delay (LTC2907 Only) Open Drain RST Output Guaranteed RST for V1 ≥ 1V or VCC ≥1V Low Profile (1mm) SOT-23 (ThinSOT™) and Plastic (3mm x 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

Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds Features: 500nA Quiescent Current ±1.5% (Max) Accuracy over Temperature Integrated Precision Attenuators Eight Pin-Selectable Reset Thresholds Eight Pin-Selectable Power-Fail Thresholds Early Warning Power-Fail Output 200ms Reset Timeout Manual Reset Input Compact 8-Lead, 2mm × 2mm DFN and TSOT-23 (ThinSOT™) Packages

Programmable Hex Voltage Supervisor with EEPROM and Comparator Outputs Features: Supervises 6 Power Supplies I2C Adjustable UV and OV Trip Points Guaranteed Threshold Accuracy: ±1% (Maximum) I2C/SMBus Interface Internal EEPROM Six Comparator Outputs Fast Comparator Response Time: 7.5μs 256 Programmable Thresholds per Channel Three Range Settings per Channel Two General Purpose Inputs Three General Purpose Inputs/Outputs Programmable Output Delays Can Be Powered from 3.3V, or 3.4V to 13.9V 24-Lead 4mm × 5mm QFN and SSOP Packages

Programmable Hex Voltage Supervisor with EEPROM and Comparator Outputs Features: Supervises 6 Power Supplies I2C Adjustable UV and OV Trip Points Guaranteed Threshold Accuracy: ±1% (Maximum) I2C/SMBus Interface Internal EEPROM Six Comparator Outputs Fast Comparator Response Time: 7.5μs 256 Programmable Thresholds per Channel Three Range Settings per Channel Two General Purpose Inputs Three General Purpose Inputs/Outputs Programmable Output Delays Can Be Powered from 3.3V, or 3.4V to 13.9V 24-Lead 4mm × 5mm QFN and SSOP Packages

Congurable 6-Supply Monitors with Watchdog Timer Features: Simultaneously Monitors Four (LTC2938) or Six Supplies (LTC2939) Sixteen User-Selectable Combinations of 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V and/or ± Adjustable Voltage Thresholds Guaranteed Threshold Accuracy: ±1.5% Adjustable Reset and Watchdog Timeout Low Supply Current: 80μA Typical Power Supply Glitch Immunity Guaranteed RST for VCC > 1V High Temperature Operation to 125°C 12-Pin 4mm × 3mm DFN or 12-Lead MSOP (LTC2938) and 16-Lead MSOP Package (LTC2939)

Battery Gas Gauge with I2C Interface Features: Indicates Accumulated Battery Charge and Discharge High Accuracy Analog Integration High Side Sense 1% Charge Accuracy ±50mV Sense Voltage Range SMBus/I2C Interface Configurable Alert Output/Charge Complete Input 2.7V to 5.5V Operating Range Quiescent Current Less Than 100µA Small 6-Pin 2mm × 3mm DFN and 8-Lead MSOP Packages

1A I2C Battery Gas Gauge with Internal Sense Resistor Features: Indicates Accumulated Battery Charge and Discharge SMBus/I2C Interface Integrated 50mΩ High Side Sense Resistor ±1A Sense Current Range High Accuracy Analog Integration 1% Charge Accuracy Configurable Alert Output/Charge Complete Input 2.7V to 5.5V Operating Range Quiescent Current Less than 100μA Small 6-Pin 2mm × 3mm DFN package

Battery Gas Gauge with I2C Interface Features: Indicates Accumulated Battery Charge and Discharge High Accuracy Analog Integration High Side Sense 1% Charge Accuracy ±50mV Sense Voltage Range SMBus/I2C Interface Configurable Alert Output/Charge Complete Input 2.7V to 5.5V Operating Range Quiescent Current Less Than 100µA Small 6-Pin 2mm × 3mm DFN and 8-Lead MSOP Packages

Wide Range I2C Power Monitor Features: Rail-to-Rail Input Range: 0V to 80V Wide Input Supply Range: 2.7V to 80V Shunt Regulator for Supplies >80V ΔΣ ADC with less than ±0.75% Total Unadjusted Error 12-Bit Resolution for Current and Voltages Internal Multiplier Calculates 24-Bit Power Value Stores Minimum and Maximum Values Alerts When Limits Exceeded Additional ADC Input Monitors an External Voltage Continuous Scan and Snapshot Modes Shutdown Mode with IQ < 80μA Split SDA for Opto-Isolation Available in 12-Lead 3mm × 3mm QFN and MSOP Packages AEC-Q100 Qualified for Automotive Applications

Wide Range I2C Power Monitor Features: Rail-to-Rail Input Range: 0V to 80V Wide Input Supply Range: 2.7V to 80V Shunt Regulator for Supplies >80V ΔΣ ADC with less than ±0.75% Total Unadjusted Error 12-Bit Resolution for Current and Voltages Internal Multiplier Calculates 24-Bit Power Value Stores Minimum and Maximum Values Alerts When Limits Exceeded Additional ADC Input Monitors an External Voltage Continuous Scan and Snapshot Modes Shutdown Mode with IQ < 80μA Split SDA for Opto-Isolation Available in 12-Lead 3mm × 3mm QFN and MSOP Packages AEC-Q100 Qualified for Automotive Applications

Wide Range I2C Power Monitor Features: Rail-to-Rail Input Range: 0V to 80V Wide Input Supply Range: 2.7V to 80V Shunt Regulator for Supplies >80V ΔΣ ADC with less than ±0.75% Total Unadjusted Error 12-Bit Resolution for Current and Voltages Internal Multiplier Calculates 24-Bit Power Value Stores Minimum and Maximum Values Alerts When Limits Exceeded Additional ADC Input Monitors an External Voltage Continuous Scan and Snapshot Modes Shutdown Mode with IQ < 80μA Split SDA for Opto-Isolation Available in 12-Lead 3mm × 3mm QFN and MSOP Packages AEC-Q100 Qualified for Automotive Applications

Wide Range I2C Power, Charge and Energy Monitor Features:Rail-to-Rail Input Range: 0V to 100VWide Input Supply Range: 2.7V to 100VShunt Regulator for Supplies >100VΔΣ ADC with Less Than ±0.4% Total Unadjusted Error12-Bit Resolution for Current and Voltages±1% Accurate Power and Energy Measurements±0.6% Accurate Current and Charge MeasurementsAdditional ADC Input Monitors an External VoltageInternal ±5% or External Time BasesContinuous Scan and Snapshot ModesStores Minimum and Maximum ValuesAlerts When Limits ExceededSplit SDA Pin Eases Opto-IsolationShutdown Mode with IQ < 40μAAvailable in 4mm × 3mm DFN and 16-Lead MSOP Packages

Wide Range I2C Power, Charge and Energy Monitor Features:Rail-to-Rail Input Range: 0V to 100VWide Input Supply Range: 2.7V to 100VShunt Regulator for Supplies >100VΔΣ ADC with Less Than ±0.4% Total Unadjusted Error12-Bit Resolution for Current and Voltages±1% Accurate Power and Energy Measurements±0.6% Accurate Current and Charge MeasurementsAdditional ADC Input Monitors an External VoltageInternal ±5% or External Time BasesContinuous Scan and Snapshot ModesStores Minimum and Maximum ValuesAlerts When Limits ExceededSplit SDA Pin Eases Opto-IsolationShutdown Mode with IQ < 40μAAvailable in 4mm × 3mm DFN and 16-Lead MSOP Packages

Wide Range I2C Power, Charge and Energy Monitor Features:Rail-to-Rail Input Range: 0V to 100VWide Input Supply Range: 2.7V to 100VShunt Regulator for Supplies >100VΔΣ ADC with Less Than ±0.4% Total Unadjusted Error12-Bit Resolution for Current and Voltages±1% Accurate Power and Energy Measurements±0.6% Accurate Current and Charge MeasurementsAdditional ADC Input Monitors an External VoltageInternal ±5% or External Time BasesContinuous Scan and Snapshot ModesStores Minimum and Maximum ValuesAlerts When Limits ExceededSplit SDA Pin Eases Opto-IsolationShutdown Mode with IQ < 40μAAvailable in 4mm × 3mm DFN and 16-Lead MSOP Packages