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CAT431LEUK-TE7

Description
Low-Voltage Adjustable Precision Voltage Reference
CategoryPower/power management    The power supply circuit   
File Size146KB,11 Pages
ManufacturerCatalyst
Websitehttp://www.catalyst-semiconductor.com/
Download Datasheet Parametric Compare View All

CAT431LEUK-TE7 Overview

Low-Voltage Adjustable Precision Voltage Reference

CAT431LEUK-TE7 Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Parts packaging codeSOT-23
package instructionTSSOP, TSOP5/6,.11,37
Contacts5
Reach Compliance Codeunknown
ECCN codeEAR99
Other featuresOUTPUT VOLTAGE ADJUSTABLE 1.228V TO 6V
Analog Integrated Circuits - Other TypesTWO TERMINAL VOLTAGE REFERENCE
JESD-30 codeR-PDSO-G5
JESD-609 codee0
length2.9 mm
Number of functions1
Output times1
Number of terminals5
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current0.1 A
Maximum output voltage1.252 V
Minimum output voltage1.228 V
Nominal output voltage1.24 V
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSOP5/6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)240
Certification statusNot Qualified
Maximum seat height1.2 mm
surface mountYES
technologyBIPOLAR
Temperature levelINDUSTRIAL
Terminal surfaceTIN LEAD
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
Fine-tuning/adjustable outputYES
width1.6 mm
Base Number Matches1
CAT431L
Low-Voltage Adjustable Precision Voltage Reference
- 0.5% Tolerance
FEATURES
s
Low startup overshoot
s
Wide current operation: 40µA to 100mA
s
Low temperature coefficient reference: +12mV
s
Low dynamic impedance: 0.3Ω at 1kHz
s
Compact 3-lead SOT23 package option
s
Industrial temperature range: -40°C to 85°C
°
°
s
Adjustable output voltage: V
REF
to 6V
- SOT23 and TO92 Packages
- Low Startup Overshoot
max deviation over temperature
s
Accurate 1.24V reference voltage: +0.5%
(+6mV) at 25°C
°
APPLICATIONS
s
SMPS control loop
s
Shunt regulator
s
Low temperature coefficient voltage reference
s
Current limiting
s
Over/Under voltage monitor
s
3V Off-line switching regulators
DESCRIPTION
The CAT431L is a low-voltage three-terminal
adjustable shunt voltage reference with guaranteed
thermal stability over the industrial temperature range.
The CAT431L has a lower 1.24V reference and wider
operating current range than the widely used TL431
and TL431A shunt-regulator references. Compared
to the TLV431/A, the CAT431L 1.24V reference is two
times more accurate.
Minimal overshoot at startup and wide AC bandwidth
make the CAT431L easy to apply in a wide set of
applications. When used with an opto-coupler, the
CAT431L is an ideal voltage reference in isolated
feedback circuits for 3V to 3.3V switch-mode power
supplies.
FUNCTIONAL DIAGRAM
CATHODE
CATHODE
REF
+
REF
1.24
VREF
ANODE
ANODE
© 2003 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 4006, Rev. J

CAT431LEUK-TE7 Related Products

CAT431LEUK-TE7 CAT431LEUR-TE7 CAT431LEZR-TEAP
Description Low-Voltage Adjustable Precision Voltage Reference 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO3 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, MBCY3
Is it Rohs certified? incompatible incompatible incompatible
package instruction TSSOP, TSOP5/6,.11,37 TSSOP, TO-236 , SIP3,.1,50
Reach Compliance Code unknown unknown unknown
ECCN code EAR99 EAR99 EAR99
Other features OUTPUT VOLTAGE ADJUSTABLE 1.228V TO 6V OUTPUT VOLTAGE ADJUSTABLE 1.228V TO 6V OUTPUT VOLTAGE ADJUSTABLE 1.228V TO 6V
Analog Integrated Circuits - Other Types TWO TERMINAL VOLTAGE REFERENCE TWO TERMINAL VOLTAGE REFERENCE TWO TERMINAL VOLTAGE REFERENCE
JESD-30 code R-PDSO-G5 R-PDSO-G3 O-MBCY-W3
JESD-609 code e0 e0 e0
Number of functions 1 1 1
Output times 1 1 1
Number of terminals 5 3 3
Maximum operating temperature 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C
Maximum output current 0.1 A 0.1 A 0.1 A
Maximum output voltage 1.252 V 1.252 V 1.252 V
Minimum output voltage 1.228 V 1.228 V 1.228 V
Nominal output voltage 1.24 V 1.24 V 1.24 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY METAL
Encapsulate equivalent code TSOP5/6,.11,37 TO-236 SIP3,.1,50
Package shape RECTANGULAR RECTANGULAR ROUND
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH CYLINDRICAL
Peak Reflow Temperature (Celsius) 240 240 240
Certification status Not Qualified Not Qualified Not Qualified
surface mount YES YES NO
technology BIPOLAR BIPOLAR BIPOLAR
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface TIN LEAD TIN LEAD TIN LEAD
Terminal form GULL WING GULL WING WIRE
Terminal pitch 0.95 mm 0.95 mm 1.27 mm
Terminal location DUAL DUAL BOTTOM
Maximum time at peak reflow temperature 30 30 30
Fine-tuning/adjustable output YES YES YES
Base Number Matches 1 1 1
Parts packaging code SOT-23 SOT-23 -
Contacts 5 3 -
length 2.9 mm 2.92 mm -
encapsulated code TSSOP TSSOP -
Maximum seat height 1.2 mm 1.09 mm -
width 1.6 mm 1.3 mm -
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