LTC2903-1 Precision Quad Supply Monitor in 6-Lead SOT-23

The LTC®2903-1 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-drain RST output 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. The RST output is guaranteed to sink at least 5µA (VOL = 0.15V) for VCC down 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

产品特点 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 (ThinSOTTM) Package

应用

Multivoltage Systems
Optical Networking Systems
Cell Phone Base Stations
Network Servers

典型应用图

参数

LTC2903-1 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC2903CS6-A1	SOT	6	C	$2.48
LTC2903CS6-A1#PBF	SOT	5	C	$2.48
LTC2903CS6-A1#TR	SOT	6	C	$2.48	$1.71
LTC2903CS6-A1#TRM	SOT	6	C	$2.48	$1.76
LTC2903CS6-A1#TRMPBF	SOT	6	C	$2.48	$1.76
LTC2903CS6-A1#TRPBF	SOT	6	C	$2.48	$1.71
LTC2903CS6-B1	SOT	6	C	$2.48
LTC2903CS6-B1#PBF	SOT	6	C	$2.48
LTC2903CS6-B1#TR	SOT	6	C	$2.48	$1.71
LTC2903CS6-B1#TRM	SOT	6	C	$2.48	$1.76
LTC2903CS6-B1#TRMPBF	SOT	6	C	$2.48	$1.76
LTC2903CS6-B1#TRPBF	SOT	6	C	$2.48	$1.71
LTC2903CS6-C1	SOT	6	C	$2.66
LTC2903CS6-C1#PBF	SOT	6	C	$2.66
LTC2903CS6-C1#TR	SOT	6	C	$2.66	$1.81
LTC2903CS6-C1#TRM	SOT	6	C	$2.66	$1.86
LTC2903CS6-C1#TRMPBF	SOT	6	C	$2.66	$1.86
LTC2903CS6-C1#TRPBF	SOT	6	C	$2.66	$1.81
LTC2903CS6-D1	SOT	6	C	$2.48
LTC2903CS6-D1#PBF	SOT	6	C	$2.48
LTC2903CS6-D1#TR	SO	6	C	$2.48	$1.71
LTC2903CS6-D1#TRM	SOT	6	C	$2.48	$1.76
LTC2903CS6-D1#TRMPBF	SOT	6	C	$2.48	$1.76
LTC2903CS6-D1#TRPBF	SO	6	C	$2.48	$1.71
LTC2903CS6-E1	SOT	6	C	$2.48
LTC2903CS6-E1#PBF	SOT	6	C	$2.48
LTC2903CS6-E1#TR	SOT	6	C	$2.48	$1.71
LTC2903CS6-E1#TRM	SOT	6	C	$2.48	$1.76
LTC2903CS6-E1#TRMPBF	SOT	6	C	$2.48	$1.76
LTC2903CS6-E1#TRPBF	SOT	6	C	$2.48	$1.71
LTC2903IS6-A1	SOT	6	I	$2.84
LTC2903IS6-A1#PBF	SOT	6	I	$2.84
LTC2903IS6-A1#TR	SOT	6	I	$2.84	$1.96
LTC2903IS6-A1#TRM	SOT	6	I	$2.84	$2.01
LTC2903IS6-A1#TRMPBF	SOT	6	I	$2.84	$2.01
LTC2903IS6-A1#TRPBF	SOT	6	I	$2.84	$1.96
LTC2903IS6-B1	SOT	6	I	$2.84
LTC2903IS6-B1#PBF	SOT	6	I	$2.84
LTC2903IS6-B1#TR	SOT	6	I	$2.84	$1.96
LTC2903IS6-B1#TRM	SOT	6	I	$2.84	$2.01
LTC2903IS6-B1#TRMPBF	SOT	6	I	$2.84	$2.01
LTC2903IS6-B1#TRPBF	SOT	6	I	$2.84	$1.96
LTC2903IS6-C1	SOT	6	I	$2.36
LTC2903IS6-C1#PBF	SOT	6	I	$2.36
LTC2903IS6-C1#TR	SOT	6	I	$2.36	$2.06
LTC2903IS6-C1#TRM	SOT	6	I	$2.36	$2.11
LTC2903IS6-C1#TRMPBF	SOT	6	I	$2.36	$2.11
LTC2903IS6-C1#TRPBF	SOT	6	I	$2.36	$2.06
LTC2903IS6-D1	SOT	6	I	$2.84
LTC2903IS6-D1#PBF	SOT	6	I	$2.84
LTC2903IS6-D1#TR	SOT	6	I	$2.84	$1.96
LTC2903IS6-D1#TRMPBF	SOT	6	I	$2.84	$2.01
LTC2903IS6-D1#TRPBF	SOT	6	I	$2.84	$1.96
LTC2903IS6-E1	SOT	6	I	$2.84
LTC2903IS6-E1#PBF	SOT	6	I	$2.84
LTC2903IS6-E1#TR	SOT	6	I	$2.84	$1.96
LTC2903IS6-E1#TRM	SOT	6	I	$2.84	$2.01
LTC2903IS6-E1#TRMPBF	SOT	6	I	$2.84	$2.01
LTC2903IS6-E1#TRPBF	SOT	6	I	$2.84	$1.96

LTC2903-1 数据手册及相关资料下载

数据手册(英文) : LTC2903-1 - Precision Quad Supply Monitor in 6-Lead SOT-23.PDF
可靠性数据 : R413 Reliability Data .PDF
产品选型卡 : High Voltage Surge Stoppers.PDF
产品选型卡 : Voltage Monitors & Supervisors Quick Guide.PDF