LTC2903-1 Series

Precision Quad Supply Monitor in 6-Lead SOT-23

Catalog

Precision Quad Supply Monitor in 6-Lead SOT-23

Part	Package / Case	Number of Voltages Monitored	Reset Timeout [Min]	Mounting Type	Reset	Output	Voltage - Threshold	Voltage - Threshold	Type	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package
Analog Devices LTC2903IS6-D1#TRMPBF	SOT-23-6 Thin TSOT-23-6	4	140 ms	Surface Mount	Active Low	Open Drain or Open Collector	Adj	3.086 V	Multi-Voltage Supervisor	85 °C	-40 °C	TSOT-23-6
Analog Devices LTC2903CS6-B1#TRMPBF	SOT-23-6 Thin TSOT-23-6	4	140 ms	Surface Mount	Active Low	Open Drain or Open Collector		1.593 V 2.213 V 2.921 V 4.425 V	Multi-Voltage Supervisor	70 °C	0 °C	TSOT-23-6
Analog Devices LTC2903CS6-B1#TRPBF	SOT-23-6 Thin TSOT-23-6	4	140 ms	Surface Mount	Active Low	Open Drain or Open Collector		1.593 V 2.213 V 2.921 V 4.425 V	Multi-Voltage Supervisor	70 °C	0 °C	TSOT-23-6
Analog Devices LTC2903IS6-A1#TRMPBF	SOT-23-6 Thin TSOT-23-6	4	140 ms	Surface Mount	Active Low	Open Drain or Open Collector	Adj	1.593 V 2.213 V 2.921 V	Multi-Voltage Supervisor	85 °C	-40 °C	TSOT-23-6
Analog Devices LTC2903CS6-D1#TRMPBF	SOT-23-6 Thin TSOT-23-6	4	140 ms	Surface Mount	Active Low	Open Drain or Open Collector	Adj	3.086 V	Multi-Voltage Supervisor	70 °C	0 °C	TSOT-23-6
Analog Devices LTC2903IS6-A1#TRPBF	SOT-23-6 Thin TSOT-23-6	4	140 ms	Surface Mount	Active Low	Open Drain or Open Collector	Adj	1.593 V 2.213 V 2.921 V	Multi-Voltage Supervisor	85 °C	-40 °C	TSOT-23-6
Analog Devices LTC2903IS6-C1#TRMPBF	SOT-23-6 Thin TSOT-23-6	4	140 ms	Surface Mount	Active Low	Open Drain or Open Collector		-4.602 V 1.593 V 2.921 V 4.425 V	Multi-Voltage Supervisor	85 °C	-40 °C	TSOT-23-6

Catalog

Precision Quad Supply Monitor in 6-Lead SOT-23

Key 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-DrainRSTOutput

• Power Supply Glitch Immunity

• Low Profile (1mm) SOT-23 (ThinSOT™) Package

Description

The LTC2903-1 monitors up to four supply voltages. The common reset output remains low until all four inputs have been in compliance for 200ms. Voltage thresholds maintain ±1.5% accuracy over temperature (with respect to the monitored voltage). The LTC2903-1 features an open-drainRSToutput with a weak internal pullup.Internal supply voltage (VCC)is generated from the greater voltage on the V1, V2 inputs. VCC= V1 for LTC2903-D1 and LTC2903-E1. TheRSToutput is guaranteed to sink at least 5µA (VOL= 0.15V) for VCCdown to 0.5V and will typically conduct current down to 0V. Quiescent current is 20µA typical, making the LTC2903-1 ideal for power conscious systems. The LTC2903-1 is available in a 6-lead low profile (1mm) SOT-23 package.ApplicationsMultivoltage SystemsOptical Networking SystemsCell Phone Base StationsNetwork Servers