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 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

1.8V to 5.5V RS-232 Single and Dual Transceivers Features: 1.8V to 5.5V Supply Voltage Single and Dual Transceivers High-Speed Operation 1Mbps for 250pF/3kΩ Load (LTC2802, LTC2804) 250kbps for 1nF/3kΩ Load 100kbps for 2.5nF/3kΩ TIA/EIA-232-F Load Low-Power 1μA Shutdown and 15μA Receivers-Active Modes No Damage or Latchup to ±10kV ESD on RS-232 Interface Logic Supply Pin for Easy Level-Shifting to UART or Microprocessor Low-Latency Output Enable Allows Line Sharing and Half-Duplex Operation True RS-232 Compliant Output Levels Small Footprint: LTC2801/LTC2802 4mm × 3mm DFN Package LTC2803/LTC2804 Narrow SSOP-16 5mm × 3mm DFN Packages

Single UV/OV Voltage Monitor Features: Monitors Single Voltage Adjustable UV and OV Trip Values Guaranteed Threshold Accuracy: ±1.5% Power Supply Glitch Immunity Adjustable Reset Timeout with Timeout Disable 29µA Quiescent Current Open-Drain OV and UV Outputs Guaranteed OV and UV for VCC ≥ 1V Available in 8-Lead ThinSOT™ and (3mm × 2mm) DFN Packages

Single UV/OV Voltage Monitor Features: Monitors Single Voltage Adjustable UV and OV Trip Values Guaranteed Threshold Accuracy: ±1.5% Power Supply Glitch Immunity Adjustable Reset Timeout with Timeout Disable 29µA Quiescent Current Open-Drain OV and UV Outputs Guaranteed OV and UV for VCC ≥ 1V Available in 8-Lead ThinSOT™ and (3mm × 2mm) DFN Packages

Single UV/OV Voltage Monitor Features: Monitors Single Voltage Adjustable UV and OV Trip Values Guaranteed Threshold Accuracy: ±1.5% Power Supply Glitch Immunity Adjustable Reset Timeout with Timeout Disable 29µA Quiescent Current Open-Drain OV and UV Outputs Guaranteed OV and UV for VCC ≥ 1V Available in 8-Lead ThinSOT™ and (3mm × 2mm) DFN Packages

Power Supply Tracker with Input Monitors Features: Tracks Multiple Supplies with MOSFET Switches Monitors 5 Input Voltages Including VCC Guaranteed Threshold Accuracy: ±1% at 0.5V Automatic Remote Sense Switching Adjustable Supply Ramp Rate Overvoltage Monitor Adjustable Electronic Circuit Breaker Adjustable Power-Good Delay Available for VCC Supply Voltages of 5V, 3.3V and 2.5V Available in 16-Pin Narrow SSOP (LTC2921 Series) and 20-Pin TSSOP (LTC2922 Series)