CM431LACM2R3TR Champion Microelectronic Corp., CM431LACM2R3TR Datasheet

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CM431LACM2R3TR

Manufacturer Part Number
CM431LACM2R3TR
Description
Low Voltage Adjustable Shunt Regulator
Manufacturer
Champion Microelectronic Corp.
Datasheet
GENERAL DESCRIPTION
The CM431L is a low voltage three terminal adjustable shunt
regulator with thermal stability guaranteed over temperature.
The output voltage can be adjusted to any value from 1.24V
(V
typical dynamic output impedance of 0.25 . Active output
circuitry provides a very sharp turn on characteristic, making
the CM431L an excellent replacement for zener diodes.
The CM431L shunt regulator is available in four voltage
tolerances(0.5%, 0.7%, 1.0% and 2.0%)and four package
options (SOT-23-3, SOT-23-5, SOT-89, TO-92, and SOP-8).
Four voltage tolerances allow the designer the opportunity to
select the proper cost/tolerance for their application.
PIN CONFIGURATION
2002/05/14 Rev. 3
REF
)to 20V with two external resistors. The CM431L has a
Front View
1
5
1
SOT-23-5
TO-92
Top View
2
2
3
4
3
SOT-23-3
Top View
1
Champion Microelectronic Corporation
3
L
2
OW
Top View
1
SOT-89
2
V
OLTAGE
3
FEATURES
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APPLICATIONS
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Pin 1
Pin 2
Pin 3
Suffix “X”: Grade “A”, “B”, “C”, or “D”
LOW voltage operation(1.24V)
Adjustable output voltage V
Wide operating current range 60 A to 100mA
LOW dynamic output impedance 0.25 typ.
Trimmed bandgap design
Linear Regulators
Adjustable Supplies
Switching Power Supplies
Battery Operated Computers
Instrumentation
Computer Disk Drivers
A
CM431LXCM233 CM431LXCM2R3
REF
CATHODE
ANODE
DJUSTABLE
1
2
3
4
CATHODE
REF
ANODE
S
C ATH O D E
N C
N C
N C
0
0.5%
HUNT
= V
Top View
SOP-8
REF
to 20V
AN O D E
R
R EF
CM431L
N C
N C
EGULATOR
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CM431LACM2R3TR Summary of contents

Page 1

GENERAL DESCRIPTION The CM431L is a low voltage three terminal adjustable shunt regulator with thermal stability guaranteed over temperature. The output voltage can be adjusted to any value from 1.24V )to 20V with two external resistors. The CM431L has a ...

Page 2

BLOCK DIAGRAM BLOCK DIAGRAM ORDERING INFORMATION PACKAGE 0.5% 1 SOT-23-3 ( ) CM431LACM233 1 SOT-23-3 ( ) CM431LACM2R3 1 SOT-23-5 ( ) CM431LACM235 1 SOT-89 ( ) CM431LACM89 2 TO-92 ( ) CM431LACN SOP-8 CM431LACS Notes: (1) Add suffix TR ...

Page 3

ABSOULTE MAXIMUM RATINGS Parameter Cathode Voltage Continuous Cathode Current Reference Current Operating Junction Temperature Range Storage Temperature Range Thermal Resistance TO-92 SOT-23-3 SOT-23-5 SOT-89 SOP-8 Power Dissipation at T =25℃ A TO-92 SOT-23-3 SOT-23-5 SOT-89 SOP-8 Lead Temperature(Soldering)10 seconds RECOMMENDED ...

Page 4

ELECTRICAL CHARACTERISTICS Parameter Symbol Reference REF z Voltage I =10mA z V Temp V T REF DEV A Deviation I =10mA z Ratio of Change I =10mA, ΔV ΔV REF Change in ΔV ...

Page 5

ELECTRICAL CHARACTERISTICS (CONTINUED) Parameter Symbol Reference REF z Voltage I =10mA z V Temp V T REF DEV A Deviation I =10mA z Ratio of Change I =10mA, ΔV ΔV REF Change REF ...

Page 6

TYPICAL CHARACTERISTICS Cathode Current vs. Cathode Voltage 300 200 100 0 -100 -200 -300 -1 -0 Reference Voltage vs. Junction Temperature 1.248 1.246 1.244 1.242 1.24 1.238 1.236 1.234 -50 - Ratio ...

Page 7

TYPICAL CHARACTERISTICS (Conti) Stability Boundary Condition 3.5 3 2.5 2 1.5 1 0.5 0 2002/05/14 Rev OLTAGE CL Champion Microelectronic Corporation CM431L S R DJUSTABLE HUNT EGULATOR Page 7 ...

Page 8

APPLICATION CIRCUIT Notes for Application Circuit: 1) Set V according to the following equation: OUT R1/ OUT REF REF 2) Choose the value for R as follows: The maximum limit for R ...

Page 9

PACKAGE DIMENSION 2002/05/14 Rev OLTAGE TO-92 L SOT-23-3 b1 With Plating b Base Metal Section B See Section B-B Champion Microelectronic Corporation CM431L S R ...

Page 10

PACKAGE DIMENSION 2002/05/14 Rev OLTAGE (CONTINUED) SOT-23 Base Metal Section B-B See Section B-B SOT- 1 Champion Microelectronic ...

Page 11

PACKAGE DIMENSION PIN 1 ID 2002/05/14 Rev OLTAGE (CONTINUED) 8-PIN SOP (S08) Champion Microelectronic Corporation DJUSTABLE HUNT CM431L EGULATOR Page 11 ...

Page 12

Champion Microelectronic Corporation (CMC) reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing ...

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