LP2951ACS-L-3.3 datasheet, PDF

Datasheet> All Categories > Power/power management> The power supply circuit> LP2951ACS-L-3.3

LP2951ACS-L-3.3: DescriptionFixed/Adjustable Positive LDO Regulator, 1.24V Min, 29V Max, 0.45V Dropout, BIPolar, PDSO8, SOIC-8; CategoryPower/power management The power supply circuit; File Size29KB，2 Pages; ManufacturerExar; Environmental Compliance

Download Datasheet Parametric Compare View All

LP2951ACS-L-3.3 Overview

Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 29V Max, 0.45V Dropout, BIPolar, PDSO8, SOIC-8

LP2951ACS-L-3.3 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Exar
Parts packaging code	SOIC
package instruction	SOP,
Contacts	8
Reach Compliance Code	unknown
ECCN code	EAR99
Maximum drop-back voltage 1	0.45 V
JESD-30 code	R-PDSO-G8
JESD-609 code	e3
length	4.9 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	8
Working temperatureTJ-Max	125 °C
Working temperature TJ-Min	-40 °C
Maximum output current 1	0.1 A
Maximum output voltage 1	29 V
Minimum output voltage 1	1.24 V
Nominal output voltage 1	3.3 V
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Regulator type	FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	1.75 mm
surface mount	YES
technology	BIPOLAR
Terminal surface	MATTE TIN
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	3.9 mm

Preview

Download Datasheet

View All

LP2950/LP2951

100 mA Low Dropout Voltage Regulators

features

Guaranteed 100mA Output

Current

5.0V and 3.3V Versions @

100mA Output

Very Low Quiescent Current

Low Dropout Voltage: 380mV

at 100mA

Extremely Tight Load and Line

Regulation

Very Low Temperature

Coefficient

Current & Thermal Limiting

Need Only 1µF for Stability

LP2951 versions only

• Error Flag Warns of Output

Dropout

• Logic-Controlled Electronic

Shutdown

• Output Programmable From

1.24 to 29V

description

The LP2950 and LP2951 are low power voltage regulators. These

devices are an excellent choice for use in battery-powered applications

such as cordless telephones, radio control systems, and portable com-

puters. The LP2950 and LP2951 feature low quiescent current and

low dropout voltage (typ. 50mV at light load and 380 mV at 100mA).

This includes a tight initial tolerance of 0.5% (typ.), extremely good

load and line regulation (0.05% typ.), and very low output temperature

coefficient, making the LP2950/LP2951 useful as a low-power voltage

reference.

The error flag output feature is used as a power-on reset for warning

of a low output voltage, due to a falling input voltage. The logic-com-

patible shutdown feature enables the regulator to be switched ON and

OFF. The LP2950 is offered in a 3-pin TO-92 package compatible with

other 5V, 3.0V & 3.3V regulators. The LP2951 is available in an 8-lead

SOIC package.

typical application circuits

Adjustable Regulator

100K

ERROR

OUTPUT

______

ERROR

Offered in TO-92 (LP2950) &

SOIC (LP2951)

OUT

1.2 to 30V

LP2951

applications

Battery Powered Systems

Cordless Telephones

Radio Control Systems

Portable/Palm Top/Notebook

Computers

Portable Consumer Equipment

Portable Instrumentation

SMPS Post-Regulator

Voltage Reference

Automotive Electronics

SHUTDOWN

INPUT

GND

3.3uF

.01uF

1.23V

REF

Latch Off When Error Flag Occurs

470kΩ

______

ERROR

OUT

470kΩ

OUT

LP2951

GND

1uF

RESET

2002 Short Form Catalog

P-11

LP2951ACS-L-3.3 Related Products

	LP2951ACS-L-3.3	LP2951CS-L-3.3	LP2951CS-L-5.0
Description	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 29V Max, 0.45V Dropout, BIPolar, PDSO8, SOIC-8	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 29V Max, 0.45V Dropout, BIPolar, PDSO8, SOIC-8	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 29V Max, 0.45V Dropout, BIPolar, PDSO8, SOIC-8
Is it Rohs certified?	conform to	conform to	conform to
Maker	Exar	Exar	Exar
Parts packaging code	SOIC	SOIC	SOIC
package instruction	SOP,	SOP,	SOP,
Contacts	8	8	8
Reach Compliance Code	unknown	compliant	compliant
ECCN code	EAR99	EAR99	EAR99
Maximum drop-back voltage 1	0.45 V	0.45 V	0.45 V
JESD-30 code	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8
JESD-609 code	e3	e3	e3
length	4.9 mm	4.9 mm	4.9 mm
Humidity sensitivity level	1	1	1
Number of functions	1	1	1
Number of terminals	8	8	8
Working temperatureTJ-Max	125 °C	125 °C	125 °C
Working temperature TJ-Min	-40 °C	-40 °C	-40 °C
Maximum output current 1	0.1 A	0.1 A	0.1 A
Maximum output voltage 1	29 V	29 V	29 V
Minimum output voltage 1	1.24 V	1.24 V	1.24 V
Nominal output voltage 1	3.3 V	3.3 V	5 V
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	SOP	SOP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260	260	260
Certification status	Not Qualified	Not Qualified	Not Qualified
Regulator type	FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	1.75 mm	1.75 mm	1.75 mm
surface mount	YES	YES	YES
technology	BIPOLAR	BIPOLAR	BIPOLAR
Terminal surface	MATTE TIN	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	GULL WING	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.27 mm	1.27 mm
Terminal location	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	40	40	40
width	3.9 mm	3.9 mm	3.9 mm
Is it lead-free?	-	Lead free	Lead free

Recommended Resources

Object detection alarm circuit with locking function

Rotor, stator and drive circuit of brushless motora

STK0039 power amplifier circuit diagram

CMOS touch switch circuit diagram

Low dropout voltage regulator circuit diagram

Fuse blown music alarm

Looking for a PIC microcontroller tutorial: I want a PIC microcontroller tutorial, thank you! 50 points for free...; kcl123 Microchip MCU

I would like to ask you about the closed-loop control of the motor encoder: I have recently been working on a logistics robot for an engineering training competition, using Mecanum wheels. Since this is the first time I have controlled a small vehicle, I have never performed ...; ILAI Robotics Development

How to choose a wireless camera: Keyword: [b]Wireless Camera[/b] Half a year ago, I bought a wireless camera for laptops. After using it for half a year, I felt that the effect was very good. It happened that a friend wanted to buy a...; gzycxfj Industrial Control Electronics

How to burn embedded applications to the board?: How do I write my own application and burn it to the board after cross-compiling it? Should I make a file image with the file system and burn it? Or configure a samba server and mount it like a normal...; 旃宇钰 Embedded System

Confusion about SipShowIM(SIPF_OFF): It can be compiled in the YC2440 DevelopBorad environment, but it fails to compile under the STANDARDSDK, prompting error LNK2019: unresolved external symbol SipShowIM referenced in function "..." Is ...; zk12081984 Embedded System

How to protect privacy using Bluetooth: The wireless communication devices we use in daily life all contain MAC addresses. MAC addresses are unique. Usually in network communications , MAC addresses are used as device identifiers. MAC addre...; 硅传科技521 TI Technology Forum

Shortcut: S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

Popular Components