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LM385 Voltage Regulator Diode: Pinout, Equivalent and Datasheet

PMIC - Voltage Reference Shunt 80ppm/°C Typical -2.4% +2.01% TWO TERMINAL VOLTAGE REFERENCE 1.235V 0°C~70°C TA LM385 1.27mm ON SEMICONDUCTOR LM385Z-1.2GVoltage Reference, Micropower, Shunt - Fixed, LM385 Series, 1.235V, TO-226AA-3

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Oct 30, 2021

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What is Zener Diode ? Zener Diode as a Voltage Regulator Explained (with solved Examples)

PMIC - Voltage Reference Shunt 80ppm/°C Typical -2.4% 2.01% TWO TERMINAL VOLTAGE REFERENCE 1.235V 0°C~70°C TA LM385 1.27mm ON SEMICONDUCTOR LM385Z-1.2GVoltage Reference, Micropower, Shunt - Fixed, LM385 Series, 1.235V, TO-226AA-3

The LM385 series are micropower two−terminal bandgap voltage regulator diodes. Designed to operate over a wide current range of 10 μA to 20 mA, these devices feature exceptionally low dynamic impedance, low noise and stable operation over time and temperature. Furthermore, Huge range of Semiconductors, Capacitors, Resistors and IcS in stock. Welcome RFQ.

LM385Z-1.2G

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LM385 Pinout

Pinout

LM385 CAD Model

Footprint

3D Model

LM385 Overview

The LM385 series are micropower two−terminal bandgap voltage regulator diodes. Designed to operate over a wide current range of 10 μA to 20 mA, these devices feature exceptionally low dynamic impedance, low noise and stable operation over time and temperature. Tight voltage tolerances are achieved by on−chip trimming. The large dynamic operating range enables these devices to be used in applications with widely varying supplies with excellent regulation. Extremely low operating current make these devices ideal for micropower circuitry like portable instrumentation, regulators and other analog circuitry where extended battery life is required. The LM385 series are packaged in a low cost TO−226 plastic case and are available in two voltage versions of 1.235 V and 2.500 V as denoted by the device suffix (see Ordering Information table). The LM385 is specified over a 0°C to +70°C temperature range. The LM385 is also available in a surface mount plastic package in voltages of 1.235 V and 2.500 V.

This article provides you with a basic overview of the LM385 Voltage Regulator Diode, including its pin descriptions, features and specifications, etc., to help you quickly understand what LM385 is.

LM385 Features

● Operating Current from 10 μA to 20 mA

● 1.0%, 1.5%, 2.0% and 3.0% Initial Tolerance Grades

● Low Temperature Coefficient

● 1.0 Ω Dynamic Impedance

● Surface Mount Package Available

● The Device is Pb−Free and is RoHS Compliant

Specifications

LM385Z-1.2G Tech Specifications

ON Semiconductor LM385Z-1.2G technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor LM385Z-1.2G.

Product Attribute Attribute Value
Lifecycle StatusACTIVE (Last Updated: 23 hours ago)
Factory Lead Time13 Weeks
MountThrough Hole
Mounting TypeThrough Hole
Package / CaseTO-226-3, TO-92-3 (TO-226AA)
Number of Pins3Pins
Weight4.535924g
Operating Temperature0°C~70°C TA
PackagingBulk
Tolerance-2.4% +2.01%
JESD-609 Codee3
Pbfree Codeyes
Part StatusActive
Moisture Sensitivity Level (MSL)1 (Unlimited)
Number of Terminations3Terminations
ECCN CodeEAR99
Product Attribute Attribute Value
Temperature Coefficient80ppm/°C Typical
Terminal FinishTin (Sn)
Terminal PositionBOTTOM
Peak Reflow Temperature (Cel)260
Number of Functions1Function
Terminal Pitch1.27mm
Current Rating20mA
Time@Peak Reflow Temperature-Max (s)40
Base Part NumberLM385
Pin Count3
Number of Outputs1Output
Output Voltage1.235V
Output TypeFixed
Max Output Current20mA
Trim/Adjustable OutputNO
Analog IC - Other TypeTWO TERMINAL VOLTAGE REFERENCE
Product Attribute Attribute Value
Max Output Voltage1.235V
Halogen FreeHalogen Free
Reference Voltage1.235V
Reference TypeShunt
Min Output Voltage1.235V
Current - Cathode20μA
Noise - 10Hz to 10kHz60μVrms
Height5.33mm
Length5.2mm
Width4.19mm
REACH SVHCNo SVHC
Radiation HardeningNo
RoHS StatusROHS3 Compliant
Lead FreeLead Free
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LM385 Functional Block Diagram

Representative Schematic Diagram

LM385 Equivalent

       Model number                            Manufacturer                                        Description
LM385LPRE3-1-2 Texas Instruments 1.235-V, 2%, 0°C to 70°C, micropower voltage reference 3-TO-92 0 to 70
LM385Z-1.2RA Motorola Semiconductor Products Two Terminal Voltage Reference, 1 Output, 1.235V, BIPolar, PBCY3, PLASTIC, TO-226AA, 3 PIN
LM385BYZ-1.2 Texas Instruments 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235V, PBCY3, PLASTIC, TO-92, 3 PIN
LM285BXM-1.2X Texas Instruments 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235V, PDSO8, SO-8
LM385Z-1.2 Motorola Mobility LLC 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235V, PBCY3, PLASTIC, TO-226AA, 3 PIN
LM385LP-1.2 Linfinity Microelectronics Two Terminal Voltage Reference, 1.2V, BIPolar, PBCY3, PLASTIC, TO-92
LM385BZ-1.2RA On Semiconductor MicroPower Voltage Reference Diodes 1.2 V, ±1%, TO-92 (TO-226) 5.33mm Body Height, 2000-REEL
LM385CZB-1.2 Telcom Semiconductor Inc Two Terminal Voltage Reference, 1 Output, 1.235V, BIPolar, PBCY3
LM385BXZ-1.2X Texas Instruments 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235V, PBCY3, PLASTIC, TO-92, 3 PIN

LM385 Application

● Portable Instrumentation

● Regulators

● Analog Circuitry

LM385 Package

TO−92(TO−226) Package

LM385 Manufacturer

On Semiconductor (Nasdaq: ON) is a manufacturer engaging itself in reducing energy use. It features a comprehensive portfolio of power, signal management, and logic, custom solutions that are energy efficient. It acts as a world-class supply chain with high reliability and a network of manufacturing facilities, sales, offices, and design centers in key markets through North America, Europe, and the Asia Pacific regions.

Datasheet PDF

LM385Z-1.2G Documents

Download datasheets and manufacturer documentation for LM385Z-1.2G

Frequently Asked Questions

What is the difference between the rated temperature range of LM285 and LM385?
The LM285 is specified over a −40°C to +85°C temperature range while the LM385 is rated from 0°C to +70°C.
What type of tube is LM385?
The LM385 series are micro-power two-end bandgap regulator diodes. These devices are designed to operate in a wide current range from 10 µA to 20 mA, with extremely low dynamic impedance, low noise, and stable operation over time and temperature. Strict voltage tolerance can be achieved through on-chip fine-tuning. The large dynamic operating range allows these devices to be used in applications with a wide range of power supply variations and excellent regulation performance. The extremely low operating current makes these devices ideal for micropower circuits that need to extend battery life, such as portable instruments, regulators, and other analog circuits.
FAQ
What is the difference between the rated temperature range of LM285 and LM385?
The LM285 is specified over a −40°C to +85°C temperature range while the LM385 is rated from 0°C to +70°C.
What type of tube is LM385?
The LM385 series are micro-power two-end bandgap regulator diodes. These devices are designed to operate in a wide current range from 10 µA to 20 mA, with extremely low dynamic impedance, low noise, and stable operation over time and temperature. Strict voltage tolerance can be achieved through on-chip fine-tuning. The large dynamic operating range allows these devices to be used in applications with a wide range of power supply variations and excellent regulation performance. The extremely low operating current makes these devices ideal for micropower circuits that need to extend battery life, such as portable instruments, regulators, and other analog circuits.

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