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ATL431BIDBZR
ATL431BIDBZR
815-ATL431BIDBZR
TO-236-3, SC-59, SOT-23-3
IC VREF SHUNT ADJ SOT23-3 Reference voltage 2.5-V low-IQ adjustable precision shunt regulator 3-SOT-23 -40 to 85
In Stock : 999
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Product Details
Purchasing and Inquiry
Describe
The ATL431 and ATL432 are three-pin adjustable shunt regulators with specified thermal stability over the applicable automotive, commercial, and industrial temperature ranges. Both regulators can set the output voltage to any value from Vref (approximately 2.5V) to 36V through two external resistors. Its output impedance is typically 0.05Ω. The active output circuitry of these devices has excellent turn-on characteristics, making them excellent replacements for Zener diodes in many applications, such as on-board voltage regulators, adjustable power supplies, and switching power supplies. The cathode current range of the ATL43X is more than 20 times higher than that of its predecessor, the TL43X. In addition, stability has been improved to support a wider range of load capacitor types and values. The ATL431 and ATL432 are functionally identical devices, differing only in pin assignments and order numbers. The ATL43X is available in A and B grades with initial tolerances of 1% and 0.5% respectively at 25°C. In addition, the low output temperature drift of both devices ensures excellent stability over temperature. The ATL43xxI devices are specified to operate from –40°C to 85°C; the ATL43xxQ devices are specified to operate from –40°C to 125°C.
The ATL431 and ATL432 are three-pin adjustable shunt regulators with specified thermal stability over the applicable automotive, commercial, and industrial temperature ranges. Both regulators can set the output voltage to any value from Vref (approximately 2.5V) to 36V through two external resistors. Its output impedance is typically 0.05Ω. The active output circuitry of these devices has excellent turn-on characteristics, making them excellent replacements for Zener diodes in many applications, such as on-board voltage regulators, adjustable power supplies, and switching power supplies. The cathode current range of the ATL43X is more than 20 times higher than that of its predecessor, the TL43X. In addition, stability has been improved to support a wider range of load capacitor types and values. The ATL431 and ATL432 are functionally identical devices, differing only in pin assignments and order numbers. The ATL43X is available in A and B grades with initial tolerances of 1% and 0.5% respectively at 25°C. In addition, the low output temperature drift of both devices ensures excellent stability over temperature. The ATL43xxI devices are specified to operate from –40°C to 85°C; the ATL43xxQ devices are specified to operate from –40°C to 125°C.
Characteristic
• Adjustable Regulated Output: 2.5V to 36V
• Ultra-low operating current
• IKA(min) = 35µA (maximum)
• IREF = 150nA (Max)
• Internal compensation ensures stability
• Stable without capacitive load
• Reference Voltage Tolerance at 25°C
• 0.5% (ATL43xB)
• 1% (ATL43xA)
• Temperature Drift Typical
• 5mV (–40°C to 85°C); “I” version
• 6mV (–40°C to 125°C); “Q” version
• Extended Cathode Current Range: 35µA to 100mA
• Low output impedance: 0.3Ω (maximum)
• ATL431AQ, ATL431BI and ATL431BQ are currently in preview
• ATL432AI, ATL432AQ, ATL432BI and ATL432BQ are currently in preview
Application
Secondary Side Regulation in a Flyback Switch Mode Power Supply (SMPS)
Industrial, Computing, Consumer and Portable Products
Adjustable Voltage and Current Reference
power management
power isolation
Zener Diode Alternatives
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ATL431BIDBZR
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