SC431LCSK-1.TR Semtech Corporation, SC431LCSK-1.TR Datasheet

SC431LCSK-1.TR

Manufacturer Part Number

SC431LCSK-1.TR

Description

Manufacturer

Semtech Corporation

Datasheet

1.SC431LCSK-1TR.pdf (10 pages)

Specifications of SC431LCSK-1.TR

Date_code

05+

Packing_info

SOT-23

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

SC431LCSK-1.TR

Manufacturer:

Company:

Meier Automation Equipment Co., Limited

Part Number:

SC431LCSK-1.TR

Manufacturer:

SEMTECH/美国升特

Quantity:

20 000

Current page: 1 of 10
Download datasheet (435Kb)

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

resistors. The SC431L has a typical dynamic output

impedance of 0.05 . 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.

Revision: May 16, 2008

POWER MANAGEMENT

Description

Typical Application Circuit

REF

) to 20V with two external

(1)(2)

Notes:

1) Set V

2) Choose the value for R as follows:

•

cathode current, I

operating current (100µA) at V

•

not exceed 100mA under all load conditions, and the

instantaneous turn-on value for I

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

Features

Applications

OUT

min

Low voltage operation (down to 1.24V)

Wide operating current range 100µA to 100mA

Low dynamic output impedance 0.05

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

Linear Regulators

Adjustable Supplies

Switching Power Supplies

Battery Operated Computers

Instrumentation

Computer Disk Drives

The maximum limit for R should be such that the

The minimum limit for R should be such that I

150

OUT

REF

OUT

(max)

(min)

(max)

according to the following equation:

100

(to limit instantaneous turn-on I

OUT

Low Voltage Adjustable

REF

, is greater than the minimum

operating conditions)

(to limit I

Shunt Regulator

IN(MIN)

under normal

does not exceed

www.semtech.com

SC431L

typ.

)

does

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