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Alpha Industries
Description : Precision Adjustable Shunt Regulator

Precision Adjustable Shunt Regulator

Toshiba
Toshiba
Description : Bipolar Linear Integrated Circuit Silicon Monolithic Adjustable Precision Shunt Regulator

Adjustable Precision Shunt Regulator

Features
Precision reference voltage: VREF= 2.495 V ± 2%
Small temperature coefficient: |αVREF| = 46 ppm/°C
Adjustable output voltage: VREF ≤VOUT ≤36 V
Low dynamic output impedance: |ZKA| = 0.15 Ω(Typ.)

Description : LOW -VOLTAGE Adjustable Precision Shunt Regulator

DESCRIPTION
The US431L product is a 3 terminal Adjustable Shunt Regulator that can also be used as a Precision voltage reference. Its output voltage may be set to any value between Vref(1.24V) and 6V with two external resistors as shown in the typical application circuit.
   
FEATURES
■ SOT23-5 package
■ 0.5% Voltage Reference Initial Accuracy
    (US431AL)
■ Low Operational Cathode Current
    (80 uA max)
■ Unconditionally Stable with only 1uF
Adjustable Output from 1.24V to 6V
■ 0.25W Typical Output Impedance
■ Pin to Pin Compatible with TLV431
   
APPLICATIONS
Precision Voltage Reference
■ Linear Regulator Controller
■ Secondary Side Controller for the Low Voltage
    Power Supply Applications
   

Part Name(s) : ZR431LC01 ZR431LC02
Zetex
Zetex => Diodes
Description : Adjustable Precision ZENER Shunt Regulator

DEVICE DESCRIPTION
The ZR431L is a three terminal Adjustable Shunt Regulator offering excellent temperature stability and output current handling capability up to 25mA. The output voltage may be set to any chosen voltage between 1.24 and 10 volts by selection of two external divider resistors.

FEATURES
• Surface mount SOT23 package
• TO92 package
• 2.5% and 1% tolerance
• Maximum temperature coefficient 50 ppm/°C
• Temperature compensated for operation over the full temperature range
• Programmable output voltage
• 100µA to 25mA current sink capability
• Low output noise

APPLICATIONS
Shunt Regulator
• Series Regulator
• Voltage monitor
• Over voltage/ under voltage protection
• Switch mode power supplies

Part Name(s) : TL431
FOSHAN
Foshan Blue Rocket Electronics Co.,Ltd.
Description : Precision Adjustable Shunt Regulator in a TO-92 Plastic Package 

Descriptions
Precision Adjustable Shunt Regulator in a TO-92 Plastic Package.

Features
   Precise reference voltage to 2.495V;guaranteed 0.5%,1% or 2% reference voltage Tolerance;
   sink current capability,1.0mA ~ 100mA;quick turn-on; Adjustable Output voltage, 
   VO=Vref ~ 36V; low   operational cathode current,50μA typical; 0.15Ω typical
   output impedance.

Applications
   Linear Regulators, Adjustable power supply, switching power supply.

Diodes
Diodes Incorporated.
Description : HIGH TEMPERATURE Adjustable Precision ZENER Shunt Regulator

DEVICE DESCRIPTION
The ZHT2431 is a three terminal Adjustable Shunt Regulator offering excellent temperature stability and output current handling capability up to 25mA. The output voltage may be set to any chosen voltage between 1.24 and 15 volts by selection of two external divider resistors.

FEATURES
• Surface mount SOT23 package
• TO92 package
• 2.5% tolerance
• Average temperature coefficient 50 ppm/°C
• Temperature compensated for operation over the full temperature range
• Programmable output voltage
• 100µA to 25mA current sink capability
• Low output noise
• -55° to 125° C operation

APPLICATIONS
Shunt Regulator
• Series Regulator
• Voltage monitor
• Over voltage/ under voltage protection
• Switch mode power supplies

Zetex
Zetex => Diodes
Description : HIGH TEMPERATURE Adjustable Precision ZENER Shunt Regulator

DEVICE DESCRIPTION
The ZHT2431 is a three terminal Adjustable Shunt Regulator offering excellent temperature stability and output current handling capability up to 25mA. The output voltage may be set to any chosen voltage between 1.24 and 15 volts by selection of two external divider resistors.

FEATURES
• Surface mount SOT23 package
• TO92 package
• 2.5% tolerance
• Average temperature coefficient 50 ppm/°C
• Temperature compensated for operation over the full temperature range
• Programmable output voltage
• 100µA to 25mA current sink capability
• Low output noise
• -55° to 125° C operation

APPLICATIONS
Shunt Regulator
• Series Regulator
• Voltage monitor
• Over voltage/ under voltage protection
• Switch mode power supplies

Diodes
Diodes Incorporated.
Description : Adjustable Precision Shunt Regulator

Description
The ZR431L is a three terminal Adjustable Shunt Regulator offering excellent temperature stability and output current handling capability up to 25mA. The output voltage may be set to any chosen voltage between 1.24 and 10 volts by selection of two external divider resistors.

Features
• 2.5% and 1% Tolerance
• Max. Temperature Coefficient 50ppm/°C
• Temperature Compensated for Operation over The Full Temperature Range
• Programmable Output Voltage
• 100μA to 100mA Current Sink Capability
• Surface Mount SOT23 Package
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)

Applications
Shunt Regulator
• Series Regulator
• Voltage Monitor
• Over Voltage/ Under Voltage Protection
• Switch Mode Power Supplies

Diodes
Diodes Incorporated.
Description : Adjustable Precision ZENER Shunt Regulator

DEVICE DESCRIPTION
The ZR431 is a three terminal Adjustable Shunt Regulator offering excellent temperature stability and output current handling capability up to 100mA. The output voltage may be set to any chosen voltage between 2.5 and 20 volts by selection of two external divider resistors.
The devices can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance.

FEATURES
● Surface mount SO8, SOT223 and SOT23 packages
● TO92 package
● 2%, 1 % and 0.5% tolerance
● Max. temperature coefficient 55 ppm/°C
● Temperature compensated for operation over the full temperature range
● Programmable output voltage
● 50μA to 100mA current sink capability
● Low output noise

APPLICATIONS
Shunt Regulator
● Series Regulator
● Voltage monitor
● Over voltage/ under voltage protection
● Switch mode power supplies

ETC2
Unspecified
Description : 1.24V Low-Voltage Adjustable Precision Shunt Regulator

GENERAL DESCRIPTION
The L431L is a three-terminal Adjustable Shunt Regulator utilizing an accurate 1.24V band gap reference. The output voltage can be set to any value between 1.24V (VREF) to 18V with two external resistors as shown in the typical application circuit. The device exhibit a wide operating current range of 0.2 to 100 mA with a typical dynamic impedance of 0.25Ω. Active output circuitry provides a very sharp turn-on characteristic, making the L431L excellent replacements for low-voltage zener diodes in many applications, including on-board regulation and Adjustable power supplies.
When used with an opto-coupler, the L431L is ideal voltage reference in isolated feedback circuits for 3.3V switching-mode power supplies. The L431L Shunt Regulator is available in two voltage tolerances (0.5% & 1.0%) and three package options (TO-92, SOT-23-3 and SO-8).

FEATURES
● Internal amplifier with 100 mA capability
● Programmable output voltage to 18V
● 0.25Ω typical output impedance
● Pin to pin compatible with TLV431A, TS431, SC431L & AS432
● Trimmed bandgap design 0.5% & 1.0% with three package options
● Low output noise

APPLICATIONS
● Linear Regulator controller
Precision voltage reference
● Switching power supplies
● Battery operating equipment
● Instrumentation
● PCs, Computer disk drives

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