The A8591KEJTR-J-1 is a DC-DC buck regulator designed for automotive applications, qualified under AEC-Q100 standards. It operates with an input voltage range of 4V to 35V and provides a fixed output voltage of 3.3V with an output current capability of up to 2A. The device features pulse-frequency modulation (PFM) for low quiescent current operation, drawing as little as 10 OºA in sleep mode. It supports adjustable switching frequencies from 300 kHz to 2.4 MHz and includes EMI reduction features such as frequency dithering and controlled switching node. The A8591KEJTR-J-1 is housed in a compact 10-pin DFN package with an exposed thermal pad, facilitating efficient thermal management. It incorporates extensive protection features, including pulse-by-pulse current limiting, thermal shutdown, and pre-bias startup capability, ensuring reliable operation in various conditions. The operating temperature range is specified from -40¬8C to 150¬8C, making it suitable for demanding automotive environments. This regulator is ideal for applications in car audio, navigation systems, and HVAC controls.
The A8591 provides efficient and quiet power conversion for automotive applications, with selectable PFM/PWM modes for optimized light-load efficiency and a sleep mode for ultra-low standby current.
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Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 10-WFDFN Exposed Pad
Switching Regulator, Product overview: A8591KEJTR-J-1 from Allegro MicroSystems is a Voltage Regulator IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, Voltage Regulator IC, DC Switching Voltage Regulators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 739-A8591KEJTR-J-1 can be used for catalog matching and distributor lookup.
Win Source Part Number: 1347083-A8591KEJTR-J
Category: Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
Series: Automotive, AEC-Q100
Package: Tape & Reel
Standard Package: 18,000
Current - Output: 2A
Output Type: Fixed
Function: Step-Down
Topology: Buck
Frequency - Switching: 300kHz ~ 2MHz
Number of Outputs: 1
Output Configuration: Positive
Voltage - Input (Min): 4V
Voltage - Input (Max): 35V
Voltage - Output (Min/Fixed): 3.3V
Synchronous Rectifier: No
Mounting Type: Surface Mount, Wettable Flank
Package / Case: 10-WFDFN Exposed Pad
Supplier Device Package: 10-DFN (3x3)
Temperature Range - Operating: -40°C ~ 150°C (TA)
ECCN: EAR99
Fake Threat In the Open Market: 40 pct.
MSL Level: 1 (Unlimited)
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Mfr: Allegro MicroSystems
Base Product Number: A8591
IC REG BUCK 3.3V 2A 10DFN
IC REG BUCK 3.3V 2A 10DFN
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 10-WFDFN Exposed Pad
| Allegro MicroSystems Inc. | DigiKey | ERSAELECTRONICS PTE. LTD. | Win Source Electronics | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | Quarktwin Technology Ltd. | |
|---|---|---|---|---|---|---|---|
| Product Category | IC Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | A8591KEJTR-J-1 | 620-1782-2-ND | 739-A8591KEJTR-J-1 | 1347083-A8591KEJTR-J-1 | A8591KEJTR-J-1 | A8591KEJTR-J-1 | A8591KEJTR-J-1 |
| Product Name | Wide Input Voltage 2 A Buck Regulator | Voltage Regulators - DC DC Switching Regulators | Voltage Regulator IC | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators |
| Package Type | Other; 10-Pin DFN | Other; 10-WFDFN Exposed Pad | Other; Tape & Reel | Other; 10-WFDFN Exposed Pad | |||
| Configuration / Function | Buck | Buck | |||||
| Output Voltage Type | Fixed | Fixed; Fixed | Fixed; Fixed | ||||
| Output Voltage | 3.3 volts | 3.3 volts | 3.3 to ? volts | ||||
| IOUT | 2 amps | 2 amps | 2 amps | 2 amps |
