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LM385-2.5
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Package Cooled:SOP/8

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Part Number: LM385-2.5

Package Cooled: SOP/8

Description: The LM185-2.5/LM285-2.5/LM385-2.5 are micropower 2-terminal band-gap voltage regulator diodes. Operating over a 20 A to...

LM385-2.5 General Description

The LM185-2.5/LM285-2.5/LM385-2.5 are micropower 2-terminal band-gap voltage regulator diodes. Operating over a 20 A 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 LM-185-2.5 band-gap reference uses only transistors and resistors, low noise and good long term stability result.

Careful design of the LM185-2.5 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 LM185-2.5 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. Further, the wide operating current allows it to replace older references with a tighter tolerance part. For applications requiring 1.2V see LM185-1.2.

The LM185-2.5 is rated for operation over a −55°C to 125°C temperature range while the LM285-2.5 is rated −40°C to 85°C and the LM385-2.5 0°C to 70°C. The LM185-2.5/LM285-2.5 are available in a hermetic TO-46 package and the LM285-2.5/LM385-2.5 are also available in a low-cost TO-92 molded package, as well as S.O. and SOT-23. The LM185-2.5 is also available in a hermetic leadless chip carrier package.

LM385-2.5 Maximum Ratings

Reverse Current                                                           30 mA
Forward Current                                                           10 mA
Operating Temperature Range (Note 3)
LM185-2.5                                               −55°C to + 125°C
LM285-2.5                                                  −40°C to + 85°C
LM385-2.5                                                         0°C to 70°C
Storage Temperature                               −55°C to + 150°C
Soldering Information
TO-92 Package (10 sec.)                                              260°C
TO-46 Package (10 sec.)                                              300°C
SO and SOT Package
Vapor Phase (60 sec.)                                                  215°C
Infrared (15 sec.)                                                          220°C

LM385-2.5 Features

±20 mV (±0.8%) max. initial tolerance (A grade)
Operating current of 20 A to 20 mA
0.6W dynamic impedance (A grade)
Low temperature coefficient
Low voltage reference-2.5V
1.2V device and adjustable device also available-LM185-1.2 series and LM185 series,respectively

LM385-2.5 datasheet

LM385-2.5
PDF/DataSheet Download

Datasheet: LM385-2.5
File Size: 293221 KB
Manufacturer: NSC [National Semiconductor]
Click here to Download

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Related Part Number

LM385-2.5 Relative Products

LM385-1.2
The LM185-1.2/LM285-1.2/LM385-1.2 are micropower 2-terminal band-gap voltage regulator diodes. Operating over a 10A to 20mA current range, they feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to provide ti...
LM385/B-2.5
The LM385/B-2.5 is a micropower 2-terminal bandgap voltage reference, which can operate in a 20uA to 20mA current range, they feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to achieve tight voltage tolera...
LM385/B-1.2
The LM385/B-1.2 is a micropower 2-terminal bandgap voltage reference. Operating over a 10uA to 20mA current range, it features exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to achieve tight voltage tolerance. Si...
LM385/B
The LM385/B is micropower 3-terminal adjustable band-gap voltage reference. Operating from 1.24V to 5.3V and over 10uA to 20mA current range. They feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to achieve...
LM385/385B-2.5V
The LM385/385B-2.5V (1.235V output) and LM285/385- 2.5V (2.5V output) are bipolar, two-terminal, bandgap voltage references that offer precision performance without premium price. These devices do not require thin-film resistors, greatly lowering manufacturi...
LM385/385B-1.2V
The LM385/385B-1.2V (1.235V output) and LM285/385- 2.5V (2.5V output) are bipolar, two-terminal, bandgap voltage references that offer precision performance without premium price. These devices do not require thin-film resistors, greatly lowering manufacturi...

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