Datasheet Linear Technology LT3085

Manufacturer	Linear Technology
Series	LT3085

Adjustable 500mA Single Resistor Low Dropout Regulator

Datasheets

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PDF, 304 Kb, Language: en, File uploaded: Sep 2, 2017, Pages: 28
Adjustable 500mA Single Resistor Low Dropout Regulator

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Packaging

	LT3085EDCB#PBF	LT3085EDCB#TRMPBF	LT3085EDCB#TRPBF	LT3085EMS8E#PBF	LT3085EMS8E#TRPBF	LT3085IDCB#PBF	LT3085IDCB#TRMPBF	LT3085IDCB#TRPBF	LT3085IMS8E#PBF	LT3085IMS8E#TRPBF	LT3085MPMS8E	LT3085MPMS8E#PBF	LT3085MPMS8E#TR	LT3085MPMS8E#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14
Package	2x3 DFN-6 Package Outline Drawing	2x3 DFN-6 Package Outline Drawing	2x3 DFN-6 Package Outline Drawing	MS-8E Package Outline Drawing	MS-8E Package Outline Drawing	2x3 DFN-6 Package Outline Drawing	2x3 DFN-6 Package Outline Drawing	2x3 DFN-6 Package Outline Drawing	MS-8E Package Outline Drawing	MS-8E Package Outline Drawing	MS-8E Package Outline Drawing	MS-8E Package Outline Drawing	MS-8E Package Outline Drawing	MS-8E Package Outline Drawing
Package Code	DCB	DCB	DCB	MS8E	MS8E	DCB	DCB	DCB	MS8E	MS8E	MS8E	MS8E	MS8E	MS8E
Package Index	05-08-1715	05-08-1715	05-08-1715	05-08-1662	05-08-1662	05-08-1715	05-08-1715	05-08-1715	05-08-1662	05-08-1662	05-08-1662	05-08-1662	05-08-1662	05-08-1662
Pin Count	6	6	6	8	8	6	6	6	8	8	8	8	8	8

Parametrics

Parameters / Models	LT3085EDCB#PBF	LT3085EDCB#TRMPBF	LT3085EDCB#TRPBF	LT3085EMS8E#PBF	LT3085EMS8E#TRPBF	LT3085IDCB#PBF	LT3085IDCB#TRMPBF	LT3085IDCB#TRPBF	LT3085IMS8E#PBF	LT3085IMS8E#TRPBF	LT3085MPMS8E	LT3085MPMS8E#PBF	LT3085MPMS8E#TR	LT3085MPMS8E#TRPBF
Demo Boards	DC1401A	DC1401A	DC1401A	DC1401A	DC1401A	DC1401A	DC1401A	DC1401A	DC1401A	DC1401A	DC1401A	DC1401A	DC1401A	DC1401A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Discrete Pass Element	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Dropout Voltage, V	0.275	0.275	0.275	0.275	0.275	0.275	0.275	0.275	0.275	0.275	0.275	0.275	0.275	0.275
Export Control	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Features	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference	Current Source Reference
Isupply, mA	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Max Junction Temp, Deg	125	125	125	125	125	125	125	125	125	125	125	125	125	125
Number of Outputs	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-55 to 125	-55 to 125	-55 to 125	-55 to 125
Output Current, A	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5
Output Voltage	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj
PSRR, dB	90	90	90	90	90	90	90	90	90	90	90	90	90	90
RMS Noise, µV	40	40	40	40	40	40	40	40	40	40	40	40	40	40
Theta JA	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)	73В°C/W (DCB), 60В°C/W (MS8E)
Type	NPN	NPN	NPN	NPN	NPN	NPN	NPN	NPN	NPN	NPN	NPN	NPN	NPN	NPN
Vin Max, V	36	36	36	36	36	36	36	36	36	36	36	36	36	36
Vin Min, V	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2
Vout Max, V	35.7	35.7	35.7	35.7	35.7	35.7	35.7	35.7	35.7	35.7	35.7	35.7	35.7	35.7

Eco Plan

	LT3085EDCB#PBF	LT3085EDCB#TRMPBF	LT3085EDCB#TRPBF	LT3085EMS8E#PBF	LT3085EMS8E#TRPBF	LT3085IDCB#PBF	LT3085IDCB#TRMPBF	LT3085IDCB#TRPBF	LT3085IMS8E#PBF	LT3085IMS8E#TRPBF	LT3085MPMS8E	LT3085MPMS8E#PBF	LT3085MPMS8E#TR	LT3085MPMS8E#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Not Compliant	Compliant	Not Compliant	Compliant

Articles

Download
New Linear Regulators Solve Old Problems &mdash LT Journal
PDF, 807 Kb, File published: Jan 6, 2014
Extract from the document
January 2014 I N T H I S I S S U E ВµModuleВ® regulator
combines a switcher with
five 1.1A LDOs 12 Volume 23 Number 4 New Linear Regulators
Solve Old Problems
Bob Dobkin fully differential op amp
drives high res ADCs 14 Silent Switcherв„ў regulator
meets CISPR Class 5 25 high speed ADC sampling
transients 34 The architecture of linear regulators has remained virtually
unchanged since the introduction of the 3-terminal floating
voltage regulator in 1976. Architectures have settled on either the
floating architecture (LT317) or an amplifier loop with feedback
from the output to the amplifier. These architectures inherently
limit regulator versatility, regulation and accuracy. In 2007, Linear
Technology released the LTВ®3080, introducing a new linear regulator
architecture that expanded versatility,
significantly improved performance,
and allowed easy parallel operation.
The LT3081 is one of this new
class of linear regulator, specifically
featuring a wide safe operating
area for industrial applications.
THE OLD WAY In the old linear regulator architecture (Figure 1),
feedback resistors set the output voltage and attenuate …

Model Line

Series: LT3085 (14)

LT3085EDCB#PBF LT3085EDCB#TRMPBF LT3085EDCB#TRPBF LT3085EMS8E#PBF LT3085EMS8E#TRPBF LT3085IDCB#PBF LT3085IDCB#TRMPBF LT3085IDCB#TRPBF LT3085IMS8E#PBF LT3085IMS8E#TRPBF LT3085MPMS8E LT3085MPMS8E#PBF LT3085MPMS8E#TR LT3085MPMS8E#TRPBF

Manufacturer's Classification

Power Management > LDO Linear Regulators > Positive Linear Regulators (LDO) | Extended Temperature (H & MP) Linear Regulators
Power Management > Current Sources