SC431LCSK-2TRT datasheet, PDF - EEWORLD Datasheet

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SC431LCSK-2TRT: DescriptionVoltage References ADJ LV SHUNT REG. SOT-23 -2%; CategoryPower/power management The power supply circuit; File Size205KB，10 Pages; ManufacturerSEMTECH; Websitehttp://www.semtech.com; Environmental Compliance

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Voltage References ADJ LV SHUNT REG. SOT-23 -2%

SC431LCSK-2TRT Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	SEMTECH
Parts packaging code	SOT-23
package instruction	TSSOP, TO-236
Contacts	3
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	OUTPUT VOLTAGE ADJUSTABLE FROM 1.24V TO 20V
Analog Integrated Circuits - Other Types	THREE TERMINAL VOLTAGE REFERENCE
JESD-30 code	R-PDSO-G3
JESD-609 code	e3
length	2.9 mm
Humidity sensitivity level	1
Number of functions	1
Output times	1
Number of terminals	3
Maximum operating temperature	70 °C
Minimum operating temperature
Maximum output current	0.01 A
Maximum output voltage	1.265 V
Minimum output voltage	1.215 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)	260
Certification status	Not Qualified
Maximum seat height	1.12 mm
surface mount	YES
technology	BIPOLAR
Maximum voltage temperature coefficient	403.226 ppm/°C
Temperature level	COMMERCIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
Fine-tuning/adjustable output	YES
width	1.3 mm

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Low Voltage Adjustable

Shunt Regulator

POWER MANAGEMENT

Description

The SC431L is a three terminal adjustable shunt

regulator with thermal stability guaranteed over

temperature. The output voltage can be adjusted to any

value from 1.24V (V

REF

) to 20V with two external

resistors. The SC431L has a typical dynamic output

impedance of 0.05Ω. Active output circuitry provides a

very sharp turn on characteristic, making the SC431L an

excellent replacement for zener diodes.

The SC431L shunt regulator is available with four volt-

age tolerances (0.25%, 0.5%, 1.0% and 2.0%), two

operating temperature ranges (commercial and indus-

trial) and two package options (SOT-23-3 and SOT-23-

5). This allows the designer the opportunity to select the

optimum combination of cost and performance for their

application.

SC431L

Features

Low voltage operation (down to 1.24V)

Wide operating current range 100µA to 100mA

Low dynamic output impedance 0.05

Ω

typ.

Trimmed bandgap design ± 0.25%

Upgrade for TLV431A

SOT-23-3 and SOT-23-5 packages. Also available in

Lead-free package, fully WEEE and RoHS compliant

Applications

Linear Regulators

Adjustable Supplies

Switching Power Supplies

Battery Operated Computers

Instrumentation

Computer Disk Drives

Typical Application Circuit

(1)(2)

Notes:

1) Set V

OUT

according to the following equation:





OUT

REF



 +

REF





2) Choose the value for R as follows:

•

The maximum limit for R should be such that the

cathode current, I

, is greater than the minimum

operating current (100µA) at V

IN(MIN)

•

The minimum limit for R should be such that I

does

not exceed 100mA under all load conditions, and the

instantaneous turn-on value for I

does not exceed

150mA. Both of the following conditions must be met:

min

≥

IN (max)

150 mA

(to limit instantaneous turn-on I

)

min

≥

IN (max)

−

OUT

OUT (min)

100 mA

(to limit I

under normal

operating conditions)

Revision: May 16, 2008

www.semtech.com

SC431LCSK-2TRT Related Products

	SC431LCSK-2TRT	SC431LI5SK-2TRT	SC431LC5SK-1TRT	SC431LCSK-1TRT
Description	Voltage References ADJ LV SHUNT REG. SOT-23 -2%	Voltage References ADJ LV SHUNT REG.SOT23 -2% 5L	Voltage References ADJ LV SHUNT REG.SOT23 -1% 5L	Voltage References ADJ LV SHUNT REG. SOT-23 -1%
Is it lead-free?	Lead free	-	Lead free	Lead free
Is it Rohs certified?	conform to	-	conform to	conform to
Parts packaging code	SOT-23	-	SOT-23	SOT-23
package instruction	TSSOP, TO-236	-	ROHS COMPLIANT, SOT-23, 5 PIN	TSSOP, TO-236
Contacts	3	-	5	3
Reach Compliance Code	compliant	-	compliant	compliant
ECCN code	EAR99	-	EAR99	EAR99
Other features	OUTPUT VOLTAGE ADJUSTABLE FROM 1.24V TO 20V	-	OUTPUT VOLTAGE ADJUSTABLE FROM 1.24V TO 20V	OUTPUT VOLTAGE ADJUSTABLE FROM 1.24V TO 20V
Analog Integrated Circuits - Other Types	THREE TERMINAL VOLTAGE REFERENCE	-	THREE TERMINAL VOLTAGE REFERENCE	THREE TERMINAL VOLTAGE REFERENCE
JESD-30 code	R-PDSO-G3	-	R-PDSO-G5	R-PDSO-G3
JESD-609 code	e3	-	e3	e3
length	2.9 mm	-	2.9 mm	2.9 mm
Humidity sensitivity level	1	-	1	1
Number of functions	1	-	1	1
Output times	1	-	1	1
Number of terminals	3	-	5	3
Maximum operating temperature	70 °C	-	70 °C	70 °C
Maximum output current	0.01 A	-	0.01 A	0.01 A
Maximum output voltage	1.265 V	-	1.252 V	1.252 V
Minimum output voltage	1.215 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	PLASTIC/EPOXY
encapsulated code	TSSOP	-	LSSOP	TSSOP
Encapsulate equivalent code	TO-236	-	TSOP5/6,.11,37	TO-236
Package shape	RECTANGULAR	-	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	-	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	-	260	260
Certification status	Not Qualified	-	Not Qualified	Not Qualified
Maximum seat height	1.12 mm	-	1.45 mm	1.12 mm
surface mount	YES	-	YES	YES
technology	BIPOLAR	-	BIPOLAR	BIPOLAR
Maximum voltage temperature coefficient	403.226 ppm/°C	-	288.018 ppm/°C	288.018 ppm/°C
Temperature level	COMMERCIAL	-	COMMERCIAL	COMMERCIAL
Terminal surface	Matte Tin (Sn)	-	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	GULL WING	-	GULL WING	GULL WING
Terminal pitch	0.95 mm	-	0.95 mm	0.95 mm
Terminal location	DUAL	-	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	-	NOT SPECIFIED	NOT SPECIFIED
Fine-tuning/adjustable output	YES	-	YES	YES
width	1.3 mm	-	1.6 mm	1.3 mm

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