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SPX2951CS-L-5.0/TR

Description
Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 30V Max, 0.5V Dropout, BIPolar, PDSO8, LEAD FREE, SOIC-8
CategoryPower/power management    The power supply circuit   
File Size137KB,13 Pages
ManufacturerSIPEX
Websitehttp://www.sipex.com/
Environmental Compliance
Download Datasheet Parametric View All

SPX2951CS-L-5.0/TR Overview

Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 30V Max, 0.5V Dropout, BIPolar, PDSO8, LEAD FREE, SOIC-8

SPX2951CS-L-5.0/TR Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerSIPEX
package instructionLEAD FREE, SOIC-8
Reach Compliance Codeunknow
Maximum drop-back voltage 10.5 V
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.9 mm
Humidity sensitivity level1
Number of functions1
Number of terminals8
Working temperatureTJ-Max125 °C
Operating temperatureTJ-Mi-40 °C
Maximum output current 10.15 A
Maximum output voltage 130 V
Minimum output voltage 11.24 V
Nominal output voltage 15 V
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Regulator typeFIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height1.75 mm
surface mountYES
technologyBIPOLAR
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width3.9 mm
®
SPX2950/SPX2951
150mA Low Dropout Voltage Regulator
FEATURES
5.0V and 3.3V at 150mA Output
Accurate: 0.5% for SPX2950A/SPX2951A
Very Low Quiescent Current
Low Dropout Voltage: 300mV at 150mA
Extremely Tight Load and Line Regulation
Very Low Temperature Coefficient
Current & Thermal Limiting
Need Only 1µF for Stability
Offered in TO-92 (SPX2950) and SOIC
(SPX2951)
Direct Replacement for LP2950/LP2951
SPX2951 versions only
Error Flag Warns of Output Dropout
Logic-Controlled Electronic Shutdown
Output Programmable From 1.24 to
29V
OUTPUT
SENSE
SHUTDOWN
GROUND
8-Pin Surface Mount (S)
1
1
2
3
4
8
7
6
5
TO-92 (N)
2
3
INPUT
FEEDBACK
5V or 3.3V Output
ERROR
V
OUT
V
IN
GROUND
SPX2951 Top View
SPX2950 Bottom View
Now Available in Lead Free Packaging
APPLICATIONS
Battery Powered Systems
Cordless Telephones
Radio Control Systems
Portable/Palm Top/Notebook Computers
Portable Consumer Equipment
Portable Instrumentation
Avionics
SMPS Post-Regulator
Voltage Reference
Automotive Electronics
DESCRIPTION
The SPX2950 and SPX2951 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
computers. The SPX2950 and SPX2951 feature low quiescent current and low dropout voltage (typ. 20mV
at 100µA and 300mV at 150mA). This includes a tight initial tolerance of (0.5% for SPX2950A/SPX2951A),
extremely good load and line regulation (0.05% typ.), and very low output temperature coefficient (20ppm/
°C
typ.), making the SPX2950/SPX2951 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
voltage. The logic compatible shutdown feature enables the regulator to be switched ON and OFF. The
SPX2950 is offered in a 3-pin TO-92 package compatible with other 5.0V, 3.3V regulators. The SPX2951
is availiable in an 8-lead SOIC package.
UNREGULATED DC
5V
7
FEEDBACK
+
8
INPUT
1
OUTPUT
2
SENSE
+
_
FROM
CMOS OR
TTL
180kΩ
6
ERROR
AMPLIFIER
5V TAP
3
SHUTDOWN
60 mV
330kΩ
+
60kΩ
+
5
______
ERROR
+
_
ERROR DETECTION
COMPARATOR
1µF
.
.
TO CMOS OR
TTL
+
1.23V
4
REFERENCE
GROUND
Block Diagram of SPX2951, 8 Lead 5V Version
DATE: 12/01/04
SPX2950/SPX2951 150mA Low Dropout Voltage Regulator
©Copyright 2004 Sipex Corporation
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