LD1085D2T90TR datasheet, PDF - EEWORLD Datasheet

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LD1085D2T90TR: Description9V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO2, D2PAK-3; CategoryPower/power management The power supply circuit; File Size774KB，19 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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LD1085D2T90TR Overview

9V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO2, D2PAK-3

LD1085D2T90TR Parametric

Parameter Name	Attribute value
Maker	STMicroelectronics
Parts packaging code	D2PAK
package instruction	D2PAK-3
Contacts	3
Reach Compliance Code	unknown
ECCN code	EAR99
Maximum drop-back voltage 1	1.5 V
Maximum input voltage	30 V
Minimum input voltage	11 V
JESD-30 code	R-PSSO-G2
length	10.2 mm
Number of functions	1
Number of terminals	2
Working temperatureTJ-Max	125 °C
Working temperature TJ-Min	-40 °C
Maximum output current 1	3 A
Maximum output voltage 1	9.18 V
Minimum output voltage 1	8.82 V
Nominal output voltage 1	9 V
Package body material	PLASTIC/EPOXY
encapsulated code	TO-263
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Certification status	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	4.83 mm
surface mount	YES
Terminal form	GULL WING
Terminal pitch	2.54 mm
Terminal location	SINGLE
width	9.15 mm
Base Number Matches	1

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LD1085

SERIES

3A LOW DROP POSITIVE VOLTAGE

REGULATOR ADJUSTABLE AND FIXED

TYPICAL DROPOUT 1.3V (AT 3A)

THREE TERMINAL ADJUSTABLE OR FIXED

OUTPUT VOLTAGE 1.5V, 1.8V, 2.5V, 2.85V,

3.3V, 3.6V, 5V, 8V, 9V, 12V.

GUARANTEED OUTPUT CURRENT UP TO

OUPUT TOLERANCE

±1%

AT 25°C AND

±2%

IN FULL TEMPERATURE RANGE

INTERNAL POWER AND THERMAL LIMIT

WIDE OPERATING TEMPERATURE RANGE

-40°C TO 125°C

PACKAGE AVAILABLE: TO-220, TO-220FP

PAK, D

PAK/A

PINOUT COMPATIBILITY WITH STANDARD

ADJUSTABLE VREG

TO-220

TO-220FP

PAK

PAK/A

DESCRIPTION

The LD1085 is a LOW DROP Voltage Regulator

able to provide up to 3A of Output Current.

Dropout is guaranteed at a maximum of 1.2V at

the maximum output current, decreasing at lower

loads. The LD1085 is pin to pin compatible with

the older 3-terminal adjustable regulators, but has

better performances in term of drop and output

tolerance.

A 2.85V output version is suitable for SCSI-2

active termination. Unlike PNP regulators, where

a part of the output current is wasted as quiescent

current, the LD1085 quiescent current flows into

the load, so increase efficiency. Only a 10µF

minimum capacitor is need for stability.

The device is supplied in TO-220, TO-220FP,

PAK and D

PAK/A. On chip trimming allows the

regulator to reach a very tight output voltage

tolerance, within ±1% at 25°C.

Figure 1: Schematic Diagram

March 2005

Rev. 14

1/19

LD1085D2T90TR Related Products

	LD1085D2T90TR	LD1085D2M36TR	LD1085D2T28TR	LD1085D2T36TR	LD1085D2M90TR	LD1085D2M80TR	LD1085D2T18TR	LD1085D2T80TR	LD1085D2M28TR
Description	9V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO2, D2PAK-3	3.6V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO3, D2PAK/A-3	2.85V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO2, D2PAK-3	3.6V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO2, D2PAK-3	9V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO3, D2PAK/A-3	8V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO3, D2PAK/A-3	1.8V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO2, D2PAK-3	8V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO2, D2PAK-3	2.85V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO3, D2PAK/A-3
Maker	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Parts packaging code	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK
package instruction	D2PAK-3	D2PAK/A-3	D2PAK-3	D2PAK-3	D2PAK/A-3	TO-263,	TO-263,	TO-263,	D2PAK/A-3
Contacts	3	3	3	3	3	3	3	3	3
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	compliant	unknown	unknown
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Maximum drop-back voltage 1	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V
Maximum input voltage	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V
Minimum input voltage	11 V	5.2 V	4.5 V	5.2 V	11 V	9.8 V	3.4 V	9.8 V	4.5 V
JESD-30 code	R-PSSO-G2	R-PSSO-G3	R-PSSO-G2	R-PSSO-G2	R-PSSO-G3	R-PSSO-G3	R-PSSO-G2	R-PSSO-G2	R-PSSO-G3
length	10.2 mm	10.2 mm	10.2 mm	10.2 mm	10.2 mm	10.2 mm	10.2 mm	10.2 mm	10.2 mm
Number of functions	1	1	1	1	1	1	1	1	1
Number of terminals	2	3	2	2	3	3	2	2	3
Working temperatureTJ-Max	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C
Working temperature TJ-Min	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Maximum output current 1	3 A	3 A	3 A	3 A	3 A	3 A	3 A	3 A	3 A
Maximum output voltage 1	9.18 V	3.672 V	2.907 V	3.672 V	9.18 V	8.16 V	1.836 V	8.16 V	2.907 V
Minimum output voltage 1	8.82 V	3.528 V	2.793 V	3.528 V	8.82 V	7.84 V	1.764 V	7.84 V	2.793 V
Nominal output voltage 1	9 V	3.6 V	2.85 V	3.6 V	9 V	8 V	1.8 V	8 V	2.85 V
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	TO-263	TO-263	TO-263	TO-263	TO-263	TO-263	TO-263	TO-263	TO-263
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	4.83 mm	4.83 mm	4.83 mm	4.83 mm	4.83 mm	4.83 mm	4.83 mm	4.83 mm	4.83 mm
surface mount	YES	YES	YES	YES	YES	YES	YES	YES	YES
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	2.54 mm	2.54 mm	2.54 mm	2.54 mm	2.54 mm	2.54 mm	2.54 mm	2.54 mm	2.54 mm
Terminal location	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE
width	9.15 mm	9.15 mm	9.15 mm	9.15 mm	9.15 mm	9.15 mm	9.15 mm	9.15 mm	9.15 mm
Base Number Matches	1	1	1	1	1	1	1	1	1

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