LD1085D2M25 datasheet, PDF - EEWORLD Datasheet

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LD1085D2M25: Description2.5 V FIXED POSITIVE LDO REGULATOR, 1.5 V DROPOUT, PSSO3; CategoryPower/power management The power supply circuit; File Size1MB，27 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/; Environmental Compliance

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LD1085D2M25 Overview

2.5 V FIXED POSITIVE LDO REGULATOR, 1.5 V DROPOUT, PSSO3

LD1085D2M25 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	STMicroelectronics
Parts packaging code	D2PAK
package instruction	LEAD FREE, D2PAK/A-3
Contacts	3
Reach Compliance Code	not_compliant
ECCN code	EAR99
Adjustability	FIXED
Maximum drop-back voltage 1	1.5 V
Nominal dropback voltage 1	1.3 V
Maximum absolute input voltage	30 V
Maximum input voltage	30 V
Minimum input voltage	4.1 V
JESD-30 code	R-PSSO-G3
JESD-609 code	e3
length	10.2 mm
Maximum grid adjustment rate	0.005%
Maximum load regulation	0.02%
Humidity sensitivity level	1
Number of functions	1
Output times	1
Number of terminals	3
Working temperatureTJ-Max	125 °C
Working temperature TJ-Min	-40 °C
Maximum output current 1	3 A
Maximum output voltage 1	2.55 V
Minimum output voltage 1	2.45 V
Nominal output voltage 1	2.5 V
Package body material	PLASTIC/EPOXY
encapsulated code	TO-263
Encapsulate equivalent code	SMSIP3H,.55TB
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	4.83 mm
surface mount	YES
technology	BIPOLAR
Terminal surface	Tin (Sn)
Terminal form	GULL WING
Terminal pitch	2.54 mm
Terminal location	SINGLE
Maximum time at peak reflow temperature	NOT SPECIFIED
Maximum voltage tolerance	2%
width	9.15 mm
Base Number Matches	1

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LD1085

3 A low drop positive voltage regulator: adjustable and fixed

Datasheet

production data

Unlike PNP regulators, where a part of the output

current is wasted as quiescent current, the

LD1085 quiescent current flows into the load,

thus increase efficiency. Only a 10 µF minimum

capacitor is need for stability.

TO-220FP

TO-220

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

D²PAK and D²PAK/A packages. On-chip trimming

allows the regulator to reach a very tight output

voltage tolerance, within ± 1% at 25 °C.

D²PAK

D²PAK/A

Features

•

Typical dropout 1.3 V (at 3 A)

•

Three terminal adjustable or fixed output

voltage 1.8 V, 2.5 V, 3.3 V, 5 V

•

Guaranteed output current up to 3 A

•

Output 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,

D²PAK, D²PAK/A

•

Pinout compatibility with standard adjustable

VREG

Description

The LD1085 is a low drop voltage regulator able

to provide up to 3 A of output current. Dropout is

guaranteed at a maximum of 1.2 V at the

maximum output current, decreasing at lower

loads. The LD1085 is pin-to-pin compatible with

the older 3-terminal adjustable regulators, but

offers better performance in terms of drop and

output tolerance.

October 2013

This is information on a product in full production.

DocID6738 Rev 27

1/27

www.st.com

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