LM385: MicroPower Voltage Reference Diodes

The LM285/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 LM285/LM385 series are packaged in a low cost TO-226AA plastic case and are available in two voltage versions of 1.235 and 2.500 V as denoted by the device suffix (see Ordering Information table). The LM285 is specified over a -40 C to +85 C temperature range while the LM385 is rated from 0 C to +70 C. The LM385 is also available in a surface mount plastic package in voltages of 1.235 and 2.500 V.

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 W Dynamic Impedance
  • Surface Mount Package Available
  • Pb-Free Packages are Available
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Micropower Voltage Reference DiodesLM285/D (94kB)9Oct, 2016
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SOIC-8 Narrow Body751-07 (62.6kB)AK
TO-92 (TO-226) 5.33mm Body Height29-11 (61.7kB)A
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LM385D-1.2GActivePb-free Halide freeSOIC-8751-071Tube98Contact BDTIC
LM385D-1.2R2GActivePb-free Halide freeSOIC-8751-071Tape and Reel2500$0.3733
LM385D-2.5GActivePb-free Halide freeSOIC-8751-071Tube98Contact BDTIC
LM385D-2.5R2GActivePb-free Halide freeSOIC-8751-071Tape and Reel2500Contact BDTIC
LM385Z-1.2GActivePb-free Halide freeTO-9229-11NABulk Bag2000$0.3733
LM385Z-1.2RAGActivePb-free Halide freeTO-9229-11NATape and Reel2000Contact BDTIC
LM385Z-1.2RPGActivePb-free Halide freeTO-9229-11NABulk Bag2000Contact BDTIC
LM385Z-2.5GActivePb-free Halide freeTO-9229-11NABulk Bag2000$0.3733
LM385Z-2.5RPGActivePb-free Halide freeTO-9229-11NAFan-Fold2000$0.3733
LM385D-1.2Last ShipmentsSOIC-8751-071Tube98
LM385D-1.2R2Last ShipmentsSOIC-8751-071Tape and Reel2500
LM385D-2.5Last ShipmentsSOIC-8751-071Tube98
LM385D-2.5R2Last ShipmentsSOIC-8751-071Tape and Reel2500
LM385Z-1.2Last ShipmentsTO-9229-11NABulk Bag2000
LM385Z-1.2RALast ShipmentsTO-9229-11NATape and Reel2000
LM385Z-1.2RPLast ShipmentsTO-9229-11NAFan-Fold2000
LM385Z-2.5Last ShipmentsTO-9229-11NABulk Bag2000
LM385Z-2.5RPLast ShipmentsTO-9229-11NAFan-Fold2000
Specifications
ProductTypeV(BR) Typ (V)Tolerance (%)IQ Typ (mA)IR Min (mA)VF Max (V)TA Min (°C)TA Max (°C)
LM385D-1.2GFixed1.23520.015070
LM385D-1.2R2GFixed1.23520.015070
LM385D-2.5GFixed2.530.015070
LM385D-2.5R2GFixed2.530.015070
LM385Z-1.2GFixed1.23520.015070
LM385Z-1.2RAGFixed1.23520.015070
LM385Z-1.2RPGFixed1.23520.015070
LM385Z-2.5GFixed2.530.015070
LM385Z-2.5RPGFixed2.530.015070
Micropower Voltage Reference Diodes (94kB) LM385B
SOIC-8 Narrow Body CM1216
TO-92 (TO-226) 5.33mm Body Height NCV33064