描述 Description

The LM4120 device is a precision low-power, low dropout bandgap voltage reference with up to 5-mA output current source and sink capability.This series reference operates with input voltages as low as 2 V and up to 12 V, consuming 160-μA (typical) supply current. In power-down mode, device current drops to less than 2 μA.The LM4120 comes in two grades (A and Standard) and seven voltage options for greater flexibility. The best grade devices (A) have an initial accuracy of 0.2%, while the standard have an initial accuracy of 0.5%, both with a temperature coefficient of50 ppm/°C ensured from ?40°C to 125°C.The very low dropout voltage, low supply current, and power-down capability of the LM4120 make this product an ideal choice for battery-powered and portable applications.The device performance is ensured over the industrial temperature range (?40°C to 85°C), while certain specifications are ensured over the extended temperature range (?40°C to 125°C). Contact TI for full specifications over the extended temperature range. The LM4120 is available in a standard 5-pin SOT-23 package.

特性 Features

? Small SOT23-5 Package
? Low Dropout Voltage: 120 mV Typical at 1 mA
? High Output Voltage Accuracy: 0.2%
? Source and Sink Current Output: ±5 mA
? Supply Current: 160 μA Typical
? Low Temperature Coefficient: 50 ppm/°C
? Enable Pin
? Fixed Output Voltages: 1.8, 2.048, 2.5, 3, 3.3, 4.096, and 5 V
? Industrial Temperature Range: ?40°C to 85°C
? (For Extended Temperature Range, ?40°C to 125°C, Contact TI)