ATL431AIDBZR Part Information

Details for ATL431AIDBZR by Texas Instruments

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Part Description

The ATL431 and ATL432 are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and industrial temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. These devices have a typical output impedance of 0.05 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies. The ATL43x has > 20x improvement cathode current range over it's TL43x predecessor. It also is stable with a wider range of load capacitance types and values. ATL431 and ATL432 are the exact same parts but with different pinouts and order numbers. The ATL43x is offered in two grades, with initial tolerances (at 25°C) of 0.5%, 1%, for the B and A grade, respectively. In addition, low output drift vs temperature ensures consistent voltage regulation over the entire temperature range. The ATL43xxI devices are characterized for operation from –40°C to +85°C, and the ATL43xxQ devices are characterized for operation from –40°C to +125°C.

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Part Features

  • Adjustable Regulated Output of 2.5 V to 36 V
  • Extended Cathode Current Range 35 u00b5A to 100 mA
  • Internally Compensated for Stability u2013 Stable With No Capacitive Load
  • Low Output Impedance of 0.3 u03a9 (Max)
  • Reference Voltage Tolerances at 25u00b0C u2013 0.5% for B Grade u2013 1% for A Grade
  • Typical Temperature Drift u2013 5 mV (u201340u00b0C to +85u00b0C); I Version u2013 6 mV (u201340u00b0C to +125u00b0C); Q Version
  • Very-Low Operating Current u2013 IKA(min) = 35 u00b5A (Max) u2013 IREF = 150 nA (Max)

Part Specifications

Voltage Reference Type Shunt - Adjustable
Product Range TL431 Series
Reference Voltage 2.495V to 36V
Initial Accuracy 1%
Temperature Coefficient -
Voltage Reference Case Style SOT-23
No. of Pins 3Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Reference Volts 36V
RoHS Compliant

Alternative Part Descriptions

  • VOLTAGE REF, SHUNT, 2.5-36V, 1%, SOT23-3; Voltage Reference Type:Shunt - Adjustable; Product Range:TL431 Series; Reference Voltage:2.495V to 36V; Initial Accuracy:1%; Temperature Coefficient:-; Voltage Reference Case Style:SOT-23; RoHS Compliant: Yes | Newark Electronics
  • 2.5-V low-IQ adjustable precision shunt regulator | Texas Instruments

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The ATL431AIDBZR is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

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Yes. This part has been flagged as RoHS Compliant by Farnell.

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