LP2951CN-3.0 ON Semiconductor, LP2951CN-3.0 Datasheet

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LP2951CN-3.0

Manufacturer Part Number
LP2951CN-3.0
Description
IC REG LDO 100MA 3V 8-DIP
Manufacturer
ON Semiconductor
Datasheet

Specifications of LP2951CN-3.0

Regulator Topology
Positive Fixed
Voltage - Output
3V
Voltage - Input
Up to 30V
Voltage - Dropout (typical)
0.35V @ 100mA
Number Of Regulators
1
Current - Output
100mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Limit (min)
-
Other names
LP2951CN-3.0OS
LP2950, LP2951, NCV2951
100 mA, Low Power Low
Dropout Voltage Regulator
specifically designed to maintain proper regulation with an extremely
low input−to−output voltage differential. These devices feature a very
low quiescent bias current of 75 mA and are capable of supplying
output currents in excess of 100 mA. Internal current and thermal
limiting protection is provided.
Output that can be used to signal external circuitry of an out of
regulation condition, or as a microprocessor power−on reset. The
second feature allows the output voltage to be preset to 5.0 V, 3.3 V or
3.0 V output (depending on the version) or programmed from 1.25 V
to 29 V. It consists of a pinned out resistor divider along with direct
access to the Error Amplifier feedback input. The third feature is a
Shutdown input that allows a logic level signal to turn−off or turn−on
the regulator output.
specifications, these devices are ideally suited for battery powered
computer, consumer, and industrial equipment where an extension of
useful battery life is desirable. The LP2950 is available in the three
pin case 29 and DPAK packages, and the LP2951 is available in the
eight pin dual−in−line, SOIC−8 and Micro8 surface mount packages.
The ‘A’ suffix devices feature an initial output voltage tolerance
± 0.5%.
Features
LP2951 Additional Features
© Semiconductor Components Industries, LLC, 2010
November, 2010 − Rev. 24
The LP2950 and LP2951 are micropower voltage regulators that are
The LP2951 has three additional features. The first is the Error
Due to the low input−to−output voltage differential and bias current
380 mV at 100 mA
and Control Changes
Low Quiescent Bias Current of 75 mA
Low Input−to−Output Voltage Differential of 50 mV at 100 mA and
5.0 V, 3.3 V or 3.0 V ± 0.5% Allows Use as a Regulator or Reference
Extremely Tight Line and Load Regulation
Requires Only a 1.0 mF Output Capacitor for Stability
Internal Current and Thermal Limiting
Pb−Free Packages are Available
NCV Prefix for Automotive and Other Applications Requiring Site
Error Output Signals an Out of Regulation Condition
Output Programmable from 1.25 V to 29 V
Logic Level Shutdown Input
(See Following Page for Device Information.)
1
See detailed ordering and shipping information in the package
dimensions section on pages 14 and 16 of this data sheet.
See general marking information in the device marking
section on page 18 of this data sheet.
STRAIGHT LEAD
ORDERING & MARKING INFORMATION
1 2
1 2
CASE 369C
DT SUFFIX
BULK PACK
case outline drawing) is connected to Pin 2.
Heatsink surface (shown as terminal 4 in
Shutdown
DPAK
3
3
Output
Sense
DM SUFFIX
CASE 846A
GND
CASE 751
CASE 626
D SUFFIX
N SUFFIX
Micro8E
SOIC−8
PDIP−8
4
PIN CONNECTIONS
http://onsemi.com
1
2
3
4
(Top View)
1
TAPE & REEL
AMMO PACK
(Top View)
BENT LEAD
1
2
PIN CONNECTIONS
Publication Order Number:
3
2
8
8
8
7
6
5
3
8
Input
Feedback
V
Error Output
Pin: 1. Output
Pin: 1. Input
1
1
O
1
Tap
Z SUFFIX
CASE 29
TO−92
2. Ground
3. Input
2. Ground
3. Output
LP2950/D

Related parts for LP2951CN-3.0

LP2951CN-3.0 Summary of contents

Page 1

LP2950, LP2951, NCV2951 100 mA, Low Power Low Dropout Voltage Regulator The LP2950 and LP2951 are micropower voltage regulators that are specifically designed to maintain proper regulation with an extremely low input−to−output voltage differential. These devices feature a very low ...

Page 2

... A Available NCV2951CDR2 T = −40° to +125°C A LP2951CD T = −40° to +125°C A LP2951ACD LP2951CDM T = −40° to +125°C A LP2951ACDM LP2951CN T = −40° to +125°C A LP2951ACN 5.0 V/100 mA 1.0 mF LP2950CZ−5.0 5.0 V/100 mA 1 Tap O 6 330 k 7 Feedback ...

Page 3

MAXIMUM RATINGS (T = 25°C, unless otherwise noted.) A Input Voltage Peak Transient Input Voltage (t < 20 ms) Power Dissipation and Thermal Characteristics Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á ...

Page 4

ELECTRICAL CHARACTERISTICS unless otherwise noted.) Characteristic Output Voltage, 5.0 V Versions 100 mA 25° LP2950C−5.0/LP2951C/NCV2951C* LP2950AC−5.0/LP2951AC/NCV2951AC − +125°C A LP2950C−5.0/LP2951C/NCV2951C* LP2950AC−5.0/LP2951AC/NCV2951AC 6.0 to ...

Page 5

ELECTRICAL CHARACTERISTICS (continued) unless otherwise noted.) Characteristic Line Regulation ( +1 (Note 9) in O(nom) LP2950C−XX/LP2951C/LP2951C−XX/NCV2951C* LP2950AC−XX/LP2951AC/LP2951AC−XX/NCV2951AC* Load Regulation (I = 100 mA to 100 mA) O LP2950C−XX/LP2951C/LP2951C−XX/NCV2951C* LP2950AC−XX/LP2951AC/LP2951AC−XX/NCV2951AC* Dropout Voltage I = 100 ...

Page 6

Dropout Voltage − The input/output voltage differential at which the regulator output no longer maintains regulation against further reductions in input voltage. Measured when the output drops 100 mV below its nominal value (which is measured at 1.0 V differential), ...

Page 7

Load Current 150 100 No Load 5 INPUT VOLTAGE (V) in Figure 6. Input Current 550 500 450 400 350 ...

Page 8

... Load 0.5 1 1.5 2 2.5 t, TIME (ms) Figure 12. Load Transient Response 4 3.0 2.0 = 100 mF 1 100 1 FREQUENCY (Hz) Figure 14. Output Noise 100 75° LP2951CN INPUT VOLTAGE (V) in Figure 16. Maximum Rated Output Current 80 400 60 200 V out 200 T = 25° 1 6 400 V = 5.0 V out ...

Page 9

Introduction The LP2950/LP2951 regulators are designed with internal current limiting and thermal shutdown making them user−friendly. Typical application circuits for the LP2950 and LP2951 are shown in Figures 20 through 28. These regulators are not internally compensated and thus require ...

Page 10

... Unregulated Input 1 Error Output Shutdown Input Figure 20. 1.0 A Regulator with 1.2 V Dropout http://onsemi.com Bypass 2pR1 x 200 Hz MTB23P06E out 5.0 V ±1. 1 Error out 2 SNS LP2951CN 220 mF O GND 0.002 mF 1.0 M 2.0 k ...

Page 11

... Input V out 47 k Error 5 Error Output R1 LP2951CN 1.0 mF Shutdown 3 SD Input GND R2 Figure 24. 5.0 V Regulator with 2.5 V Sleep Function http://onsemi.com 2 1.23/R Load Error out 2 SNS LP2951CN GND 1 CMOS Gate 470 2N3906 out 2 NC SNS 200 k 3 100 pF 100 100 k ...

Page 12

... When V 1.0 mF 5.7 V, regulator #1 is back in regulation and the early warning signal rises, unlatching regulator #2 via D3 470 0.05 1000 mF MJE2955 . Error out SNS LP2951CN Tant . GND Bus. out http://onsemi.com 12 is programmed one out drops below 5.3 V, the in again exceeds ...

Page 13

... LP2951CN * High for < 3 Gnd 1N457 360 1N457 1N457 6.0 V Lead-Acid Battery 2N3906 Error out 2 SNS LP2951CN 1 Gnd for T = 50°C D(max) A 2.0 oz. Copper L Î Î Î Î Î Î L Î Î Î Î Î Î R qJA LENGTH OF COPPER (mm) http://onsemi.com ...

Page 14

ORDERING INFORMATION (LP2950) Output Voltage Part Number LP2950CZ−3.0 LP2950CZ−3.0G LP2950CZ−3.0RA LP2950CZ−3.0RAG LP2950ACZ−3.0 LP2950ACZ−3.0G LP2950ACZ−3.0RA LP2950ACZ−3.0RAG LP2950CZ−3.3 LP2950CZ−3.3G LP2950CZ−3.3RA LP2950CZ−3.3RAG LP2950ACZ−3.3 LP2950ACZ−3.3G LP2950ACZ−3.3RA LP2950ACZ−3.3RAG LP2950CZ−5.0 LP2950CZ−5.0G LP2950CZ−5.0RA LP2950CZ−5.0RAG LP2950CZ−5.0RP LP2950CZ−5.0RPG LP2950ACZ−5.0 LP2950ACZ−5.0G LP2950ACZ−5.0RA LP2950ACZ−5.0RAG LP2950CDT−3.0 LP2950CDT−3.0G LP2950CDT−3.0RK LP2950CDT−3.0RKG LP2950ACDT−3.0 LP2950ACDT−3.0G LP2950ACDT−3.0RK ...

Page 15

ORDERING INFORMATION (LP2950) Output Voltage Part Number LP2950CDT−3.3G LP2950CDT−3.3RK LP2950CDT−3.3RKG LP2950ACDT−3.3 LP2950ACDT−3.3RG LP2950ACDT−3.3RK LP2950CDT−5.0 LP2950CDT−5.0G LP2950CDT−5.0RK LP2950CDT−5.0RKG LP2950ACDT−5.0 LP2950ACDT−5.0G LP2950ACDT−5.0RK LP2950ACDT−5RKG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and ...

Page 16

ORDERING INFORMATION (LP2951) Output Voltage Part Number LP2951CD−3.0 LP2951CD−3.0G LP2951CD−3.0R2 LP2951CD−3.0R2G LP2951ACD−3.0 LP2951ACD−3.0G LP2951ACD−3.0R2 LP2951ACD−3.0R2G LP2951CD−3.3 LP2951CD−3.3G LP2951CD−3.3R2 LP2951CD−3.3R2G LP2951ACD−3.3 LP2951ACD−3.3G LP2951ACD−3.3R2 LP2951ACD−3.3R2G LP2951CD 5.0 or Adj. LP2951CDG 5.0 or Adj. LP2951CDR2 5.0 or Adj. LP2951CDR2G 5.0 or Adj. LP2951ACD ...

Page 17

... LP2951ACN−3.0 LP2951ACN−3.0G LP2951CN−3.3 LP2951CN−3.3G LP2951ACN−3.3 LP2951ACN−3.3G LP2951CN LP2951CNG LP2951ACN LP2951ACNG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. ORDERING INFORMATION (NCV2951) ...

Page 18

TO−92 Z SUFFIX CASE 029 2950 2950A CZ−xx CZ−xx ALYWWG ALYWWG ALYW 1 PDIP−8 N SUFFIX CASE 626 51CN 51ACN AWL AWL YYWWG YYWWG *This marking diagram also applies to NCV2951. ...

Page 19

PACKAGE DIMENSIONS SEATING K PLANE SEATING K PLANE TO−226AA/TO−92 Z SUFFIX CASE 29−11 ISSUE ...

Page 20

... DETAIL 0.005 (0.13 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE DIMENSIONS DPAK DT SUFFIX CASE 369C−01 ISSUE GAUGE L2 SEATING C PLANE PLANE DETAIL A ROTATED SOLDERING FOOTPRINT* 6.20 3.00 ...

Page 21

... G C SEATING PLANE −Z− 0.25 (0.010 *For additional information on our Pb−Free strategy and soldering details please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE DIMENSIONS SOIC−8 D SUFFIX CASE 751−07 ISSUE 0.10 (0.004 SOLDERING FOOTPRINT* 1 ...

Page 22

NOTE 5 F TOP VIEW e 0.010 SIDE VIEW PACKAGE DIMENSIONS PDIP−8 N SUFFIX CASE 626−05 ISSUE M NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME ...

Page 23

... PLANE A 0.038 (0.0015) A1 *For additional information on our Pb−Free strategy and soldering details please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. SENSEFET is a trademark of Semiconductor Components Industries, LLC. Micro8 is a trademark of International Rectifier. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein ...

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