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ATL431BIDBZR +BOM

2.5-V low-IQ adjustable precision shunt regulator

Hersteller:

Texas Instruments, Inc
Herstellerteil #:

ATL431BIDBZR
Datenblatt:

ATL431BIDBZR Datenblatt (PDF)
Reference Type:

Shunt
Output Type:

Adjustable
Voltage - Output (Min/Fixed):

2.5V
Voltage - Output (Max):

36 V
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ATL431BIDBZR Allgemeine Beschreibung

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 V_ref (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 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.

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.

Hauptmerkmale

Adjustable Regulated Output of 2.5 V to 36 V
Very-Low Operating Current
- I_KA(min)= 35 µA (Max)
- I_REF = 150 nA (Max)
Internally Compensated for Stability
- Stable With No Capacitive Load
Reference Voltage Tolerances at 25°C
- 0.5% for B Grade
- 1% for A Grade
Typical Temperature Drift
- 5 mV (–40°C to +85°C); I Version
- 6 mV (–40°C to +125°C); Q Version
Extended Cathode Current Range 35 µA to 100 mA
Low Output Impedance of 0.3 Ω (Max)

Spezifikationen

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Reference	Series	-
Reference Type	Shunt	Output Type	Adjustable
Voltage - Output (Min/Fixed)	2.5V	Voltage - Output (Max)	36 V
Current - Output	100 mA	Tolerance	±0.5%
Temperature Coefficient	48ppm/°C	Noise - 0.1Hz to 10Hz	-
Noise - 10Hz to 10kHz	-	Voltage - Input	-
Current - Supply	-	Current - Cathode	35 µA
Operating Temperature	-40°C ~ 85°C (TA)	Mounting Type	Surface Mount
Base Product Number	ATL431

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