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Datasheet> All Categories > Power/power management> The power supply circuit> LP2987AIMM-2.5
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LP2987AIMM-2.5

Description
2.5V FIXED POSITIVE LDO REGULATOR, 0.35V DROPOUT, PDSO8, MINI, SOIC-8
CategoryPower/power management    The power supply circuit   
File Size2MB，40 Pages
ManufacturerRochester Electronics
Websitehttps://www.rocelec.com/
Download Datasheet Parametric Compare View All

LP2987AIMM-2.5 Overview

2.5V FIXED POSITIVE LDO REGULATOR, 0.35V DROPOUT, PDSO8, MINI, SOIC-8

LP2987AIMM-2.5 Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerRochester Electronics
Parts packaging codeSOIC
package instructionTSSOP,
Contacts8
Reach Compliance Codeunknown
Maximum drop-back voltage 10.35 V
Maximum input voltage16 V
Minimum input voltage3.5 V
JESD-30 codeS-PDSO-G8
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals8
Working temperatureTJ-Max125 °C
Working temperature TJ-Min-40 °C
Maximum output current 10.2 A
Maximum output voltage 12.545 V
Minimum output voltage 12.455 V
Nominal output voltage 12.5 V
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Package shapeSQUARE
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height1.09 mm
surface mountYES
Terminal surfaceTIN LEAD
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3 mm

LP2987AIMM-2.5 Preview

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LP2987/LP2988 Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with Programmable
Power-On Reset Delay
February 2002
LP2987/LP2988
Micropower, 200 mA Ultra Low-Dropout Voltage
Regulator with Programmable Power-On Reset Delay;
Low Noise Version Available (LP2988)
General Description
The LP2987/8 are fixed-output 200 mA precision LDO volt-
age regulators with power-ON reset delay which can be
implemented using a single external capacitor.
The LP2988 is specifically designed for noise-critical appli-
cations. A single external capacitor connected to the Bypass
pin reduces regulator output noise.
Using an optimized VIP
™
(Vertically Integrated PNP) pro-
cess, these regulators deliver superior performance:
Dropout Voltage:
180 mV
@
200 mA load, and 1 mV
@
1 mA
load (typical).
Ground Pin Current:
1 mA
@
200 mA load, and 200 µA
@
10 mA load (typical).
Sleep Mode:
The LP2987/8 draws less than 2 µA quiescent
current when shutdown pin is held low.
Error Flag/Reset:
The error flag goes low when the output
drops approximately 5% below nominal. This pin also pro-
vides a power-ON reset signal if a capacitor is connected to
the DELAY pin.
Precision Output:
Standard product versions of the LP2987
and LP2988 are available with output voltages of 5.0V, 3.8V,
3.3V, 3.2V, 3.0V, or 2.8V, with guaranteed accuracy of 0.5%
(“A” grade) and 1% (standard grade) at room temperature.
Features
n
n
n
n
n
n
n
n
n
n
n
n
Ultra low dropout voltage
Power-ON reset delay requires only one component
Bypass pin for reduced output noise (LP2988)
Guaranteed continuous output current 200 mA
Guaranteed peak output current
>
250 mA
SO-8 and mini SO-8 surface mount packages
<
2 µA quiescent current when shutdown
Low ground pin current at all loads
0.5% output voltage accuracy (“A” grade)
Wide supply voltage range (16V max)
Overtemperature/overcurrent protection
−40˚C to +125˚C junction temperature range
Applications
n
Cellular Phone
n
Palmtop/Laptop Computer
n
Camcorder, Personal Stereo, Camera
Block Diagrams
10001701
10001702
VIP
™
is a trademark of National Semiconductor Corporation.
© 2002 National Semiconductor Corporation
DS100017
www.national.com
LP2987/LP2988
Connection Diagram (LP2987)
Surface Mount Packages:
8-Lead LLP Surface Mount Package
10001703
Top View
SO-8/Mini SO-8 Package
See NS Package Drawing Number M08A/MUA08A
For ordering information, refer to
Table 1in
this
document.
10001757
Top View
See NS Package Drawing Number LDC08A
Ordering Information (LP2987)
TABLE 1. Package Marking and Ordering Information
Output Voltage
5
5
5
5
3.8
3.8
3.8
3.8
3.3
3.3
3.3
3.3
3.2
3.2
3.2
3.2
3.0
Grade
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
Order Information
LP2987AIMMX-5.0
LP2987AIMM-5.0
LP2987IMMX-5.0
LP2987IMM-5.0
LP2987AIMMX-3.8
LP2987AIMM-3.8
LP2987IMMX-3.8
LP2987IMM-3.8
LP2987AIMMX-3.3
LP2987AIMM-3.3
LP2987IMMX-3.3
LP2987IMM-3.3
LP2987AIMMX-3.2
LP2987AIMM-3.2
LP2987IMMX-3.2
LP2987IMM-3.2
LP2987AIMMX-3.0
Package Marking
L44A
L44A
L44B
L44B
L96A
L96A
L96B
L96B
L43A
L43A
L43B
L43B
L66A
L66A
L66B
L66B
L42A
Supplied as:
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
www.national.com
2
LP2987/LP2988
Ordering Information (LP2987)
Output Voltage
3.0
3.0
3.0
2.8
2.8
2.8
2.8
5
5
5
5
3.8
3.8
3.8
3.8
3.3
3.3
3.3
3.3
3.2
3.2
3.2
3.2
3.0
3.0
Grade
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
(Continued)
TABLE 1. Package Marking and Ordering Information
(Continued)
Order Information
LP2987AIMM-3.0
LP2987IMMX-3.0
LP2987IMM-3.0
LP2987AIMMX-2.8
LP2987AIMM-2.8
LP2987IMMX-2.8
LP2987IMM-2.8
LP2987AIMX-5.0
LP2987AIM-5.0
LP2987IMX-5.0
LP2987IM-5.0
LP2987AIMX-3.8
LP2987AIM-3.8
LP2987IMX-3.8
LP2987IM-3.8
LP2987AIMX-3.3
LP2987AIM-3.3
LP2987IMX-3.3
LP2987IM-3.3
LP2987AIMX-3.2
LP2987AIM-3.2
LP2987IMX-3.2
LP2987AIM-3.2
LP2987IMX-3.0
LP2987AIM-3.0
Package Marking
L42A
L42B
L42B
L89A
L89A
L89B
L89B
2987AIM5.0
2987AIM5.0
2987IM5.0
2987IM5.0
2987AIM3.8
2987AIM3.8
2987IM3.8
2987IM3.8
2987AIM3.3
2987AIM3.3
2987IM3.3
2987IM3.3
2987AIM3.2
2987AIM3.2
2987IM3.2
2987IM3.2
2987AIM3.0
2987AIM3.0
Supplied as:
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
3500 Units on Tape and
Reel
1000 Units on Tape and
Reel
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
3
www.national.com
LP2987/LP2988
Ordering Information (LP2987)
Output Voltage
3.0
3.0
2.8
2.8
2.8
2.8
8-Lead LLP
5
5
5
5
3.3
3.3
3.3
3.3
3.0
3.0
3.0
3.0
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
Grade
STD
STD
A
A
STD
STD
(Continued)
TABLE 1. Package Marking and Ordering Information
(Continued)
Order Information
LP2987IMX-3.0
LP2987IM-3.0
LP2987AIMX-2.8
LP2987AIM-2.8
LP2987IMX-2.8
LP2987AIM-2.8
Package Marking
2987IM3.0
2987IM3.0
2987AIM2.8
2987AIM2.8
2987IM2.8
2987AIM2.8
Supplied as:
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
2500 Units on Tape and
Reel
Shipped in Anti-Static
Rails
1000 Units on Tape and
Reel
4500 Units on Tape and
Reel
1000 Units on Tape and
Reel
4500 Units on Tape and
Reel
1000 Units on Tape and
Reel
4500 Units on Tape and
Reel
1000 Units on Tape and
Reel
4500 Units on Tape and
Reel
1000 Units on Tape and
Reel
4500 Units on Tape and
Reel
1000 Units on Tape and
Reel
4500 Units on Tape and
Reel
LP2987AILD-5
LP2987AILDX-5
LP2987ILD-5
LP2987ILDX-5
LP2987AILD-3.3
LP2987AILDX-3.3
LP2987ILD-3.3
LP2987ILDX-3.3
LP2987AILD-3.0
LP2987AILDX-3.0
LP2987ILD-3.0
LP2987ILDX-3.0
L009A
L009A
L009AB
L009AB
L008A
L008A
L008AB
L008AB
L007A
L007A
L007AB
L007AB
www.national.com
4
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LP2987AIMM-2.5 Related Products

LP2987AIMM-2.5 LP2987IMM-2.5
Description 2.5V FIXED POSITIVE LDO REGULATOR, 0.35V DROPOUT, PDSO8, MINI, SOIC-8 2.5V FIXED POSITIVE LDO REGULATOR, 0.35V DROPOUT, PDSO8, MINI, SOIC-8
Is it lead-free? Contains lead Contains lead
Is it Rohs certified? incompatible incompatible
Maker Rochester Electronics Rochester Electronics
Parts packaging code SOIC SOIC
package instruction TSSOP, MINI, SOIC-8
Contacts 8 8
Reach Compliance Code unknown unknown
Maximum drop-back voltage 1 0.35 V 0.35 V
Maximum input voltage 16 V 16 V
Minimum input voltage 3.5 V 3.5 V
JESD-30 code S-PDSO-G8 S-PDSO-G8
JESD-609 code e0 e0
length 3 mm 3 mm
Humidity sensitivity level 1 1
Number of functions 1 1
Number of terminals 8 8
Working temperatureTJ-Max 125 °C 125 °C
Working temperature TJ-Min -40 °C -40 °C
Maximum output current 1 0.2 A 0.2 A
Maximum output voltage 1 2.545 V 2.57 V
Minimum output voltage 1 2.455 V 2.43 V
Nominal output voltage 1 2.5 V 2.5 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP TSSOP
Package shape SQUARE SQUARE
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 260 260
Regulator type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height 1.09 mm 1.09 mm
surface mount YES YES
Terminal surface TIN LEAD TIN LEAD
Terminal form GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm
Terminal location DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED 40
width 3 mm 3 mm

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