ATL431AQDBZR

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Texas Instruments

2.5-V LOW-IQ ADJUSTABLE PRECISION SHUNT REGULATOR

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ATL431AQDBZR

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Texas Instruments

2.5-V LOW-IQ ADJUSTABLE PRECISION SHUNT REGULATOR

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Description Specifications Series Pricing CAD Documents

Description

General part information

ATL431 Series

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 2.5V) and 36V, with two external resistors. These devices have a typical output impedance of 0.05Ω. 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 its 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.

Technical Specifications

Parameters and characteristics for this part

Specification	ATL431AQDBZR

Current - Cathode	35 µA
Current - Output	100 mA
Mounting Type	Surface Mount
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Type	Adjustable
Package / Case	TO-236-3, SOT-23-3, SC-59
Package Name	SOT-23-3
Reference Type	Shunt
Temperature Coefficient	82 ppm/°C
Tolerance	1 %
Voltage - Output (Max)	36 V
Voltage - Output (Min/Fixed)	2.5 V

ATL431 Series

2.5-V low-IQ adjustable precision shunt regulator

Part	Mounting Type	Temperature Coefficient	Current - Cathode	Voltage - Output (Min/Fixed)	Package / Case	Output Type	Package Name	Voltage - Output (Max)	Operating Temperature (Max)	Operating Temperature (Min)	Reference Type	Tolerance	Current - Output	Package Length	Package Width	Supplied Contents	Contents	Function	Utilized IC / Part	Type
Texas Instruments ATL431AQDBZR	Surface Mount	82 ppm/°C	35 µA	2.5 V	SC-59 SOT-23-3 TO-236-3	Adjustable	SOT-23-3	36 V	125 °C	-40 °C	Shunt	1 %	100 mA
Texas Instruments ATL431LIAQDBZR	Surface Mount		100 µA	2.5 V	SC-59 SOT-23-3 TO-236-3	Adjustable	SOT-23-3	36 V	125 °C	-40 °C	Shunt	1 %	15 mA
Texas Instruments ATL431LIBIDBZR	Surface Mount		100 µA	2.5 V	SC-59 SOT-23-3 TO-236-3	Adjustable	SOT-23-3	36 V	85 °C	-40 °C	Shunt	0.5 %	15 mA
Texas Instruments ATL431AIDBZR	Surface Mount	48 ppm/°C	35 µA	2.5 V	SC-59 SOT-23-3 TO-236-3	Adjustable	SOT-23-3	36 V	85 °C	-40 °C	Shunt	1 %	100 mA
Texas Instruments ATL431LIAIDQNR	Surface Mount		80 µA	2.5 V	4-XDFN Exposed Pad	Adjustable	4-X2SON	36 V	85 °C	-40 °C	Shunt	1 %	15 mA	1 mm	1 mm
Texas Instruments ATL431LIBQDBZR	Surface Mount		100 µA	2.5 V	SC-59 SOT-23-3 TO-236-3	Adjustable	SOT-23-3	36 V	125 °C	-40 °C	Shunt	0.5 %	15 mA
Texas Instruments ATL431LIBIDQNR	Surface Mount		80 µA	2.5 V	4-XDFN Exposed Pad	Adjustable	4-X2SON	36 V	85 °C	-40 °C	Shunt	0.5 %	15 mA	1 mm	1 mm
Texas Instruments ATL431LIEVM																Board(s)	Board	Voltage Reference	ATL431LI	Power Management
Texas Instruments ATL431EAIDBZR	Surface Mount	48 ppm/°C	35 µA	2.5 V	SC-59 SOT-23-3 TO-236-3	Adjustable	SOT-23-3	36 V	85 °C	-40 °C	Shunt	1 %	100 mA
Texas Instruments ATL431BIDBZR	Surface Mount	48 ppm/°C	35 µA	2.5 V	SC-59 SOT-23-3 TO-236-3	Adjustable	SOT-23-3	36 V	85 °C	-40 °C	Shunt	0.5 %	100 mA