CAT431LEUR-TE7 datasheet, PDF - EEWORLD Datasheet

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CAT431LEUR-TE7: Description1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO3; CategoryPower/power management The power supply circuit; File Size146KB，11 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/

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CAT431LEUR-TE7 Overview

1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO3

CAT431LEUR-TE7 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Parts packaging code	SOT-23
package instruction	TSSOP, TO-236
Contacts	3
Reach Compliance Code	unknown
ECCN code	EAR99
Other features	OUTPUT VOLTAGE ADJUSTABLE 1.228V TO 6V
Analog Integrated Circuits - Other Types	TWO TERMINAL VOLTAGE REFERENCE
JESD-30 code	R-PDSO-G3
JESD-609 code	e0
length	2.92 mm
Number of functions	1
Output times	1
Number of terminals	3
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output current	0.1 A
Maximum output voltage	1.252 V
Minimum output voltage	1.228 V
Nominal output voltage	1.24 V
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TO-236
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	240
Certification status	Not Qualified
Maximum seat height	1.09 mm
surface mount	YES
technology	BIPOLAR
Temperature level	INDUSTRIAL
Terminal surface	TIN LEAD
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
Fine-tuning/adjustable output	YES
width	1.3 mm
Base Number Matches	1

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CAT431L

Low-Voltage Adjustable Precision Voltage Reference

- 0.5% Tolerance

FEATURES

Low startup overshoot

Wide current operation: 40µA to 100mA

Low temperature coefficient reference: +12mV

Low dynamic impedance: 0.3Ω at 1kHz

Compact 3-lead SOT23 package option

Industrial temperature range: -40°C to 85°C

Adjustable output voltage: V

REF

to 6V

- SOT23 and TO92 Packages

- Low Startup Overshoot

max deviation over temperature

Accurate 1.24V reference voltage: +0.5%

(+6mV) at 25°C

APPLICATIONS

SMPS control loop

Shunt regulator

Low temperature coefficient voltage reference

Current limiting

Over/Under voltage monitor

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

REF

–

REF

1.24

VREF

ANODE

Characteristics subject to change without notice

Doc. No. 4006, Rev. J

CAT431LEUR-TE7 Related Products

	CAT431LEUR-TE7	CAT431LEUK-TE7	CAT431LEZR-TEAP
Description	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO3	Low-Voltage Adjustable Precision Voltage Reference	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, MBCY3
Is it Rohs certified?	incompatible	incompatible	incompatible
package instruction	TSSOP, TO-236	TSSOP, TSOP5/6,.11,37	, 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-G3	R-PDSO-G5	O-MBCY-W3
JESD-609 code	e0	e0	e0
Number of functions	1	1	1
Output times	1	1	1
Number of terminals	3	5	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	TO-236	TSOP5/6,.11,37	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	3	5	-
length	2.92 mm	2.9 mm	-
encapsulated code	TSSOP	TSSOP	-
Maximum seat height	1.09 mm	1.2 mm	-
width	1.3 mm	1.6 mm	-

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