Product Summary

The LM385M3X-1.2 is a micropower 2-terminal band-gap voltage regulator diode. Operating over a 10 μA to 20 mA current range, they feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to provide tight voltage tolerance. Since the LM385M3X-1.2 band-gap reference uses only transistors and resistors, low noise and good long term stability result. Careful design of the LM385M3X-1.2 has made the device exceptionally tolerant of capacitive loading, making it easy to use in almost any reference application. The wide dynamic operating range allows its use with widely varying supplies with excellent regulation. The extremely low power drain of the LM385M3X-1.2 makes it useful for micropower circuitry. This voltage reference can be used to make portable meters, regulators or general purpose analog circuitry with battery life approaching shelf life.

Parametrics

LM385M3X-1.2 absolute maximum ratings: (1)Reverse Current: 30 mA; (2)Forward Current: 10 mA; (3)Operating Temperature Range: LM385-1.2 0℃ to 70℃; (4)Storage Temperature: -55℃ to +150℃; (5)Soldering Information: TO-92 package: 10 sec. 260℃; TO-46 package:10 sec. 300℃; (6)SO and SOT Pkg: Vapor phase (60 sec.) 215℃; Infrared (15 sec.) 220℃.

Features

LM385M3X-1.2 features: (1)±4 mV (±0.3%) max. initial tolerance (A grade); (2)Operating current of 10 μA to 20 mA; (3)0.6W max dynamic impedance (A grade); (4)Low temperature coefficient; (5)Low voltage reference: 1.235V; (6)2.5V device and adjustable device also available; (7)LM185-2.5 series and LM185 series, respectively.

Diagrams

LM385M3X-1.2 bottom view

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM385M3X-1.2
LM385M3X-1.2

National Semiconductor (TI)

Voltage & Current References

Data Sheet

0-3000: $0.26
3000-6000: $0.25
6000-12000: $0.23
LM385M3X-1.2/NOPB
LM385M3X-1.2/NOPB

National Semiconductor (TI)

Voltage & Current References MICROPWR VLTG REF DIODE

Data Sheet

0-1: $0.71
1-25: $0.56
25-100: $0.50
100-250: $0.44