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Allegro MicroSystems Inc. Wide Input Voltage 2 A Buck Regulator A8591KEJTR-J-1

Description
The A8591 is designed to provide the power supply requirements of next generation car audio and infotainment systems. The A8591 provides all the control and protection circuitry to produce a high-current regulator with ±1% output voltage accuracy. The A8591 employs current-mode control to provide simple compensation, excellent stability, and fast transient response. The A8591 employs pulse-frequency modulation (PFM) to draw less than 33 μA from 12 VIN while supplying 5 V/40 μA (A8591, 5 VOUT), or less than 24 μA from 12 VIN while supplying 3.3 V/40 μA (A8591-1, 3.3 VOUT). When operational, the A8591 operates down to at least 3.6 VIN (VIN falling). The Sleep feature allows for very low standby current. Features of the A8591 include a programmable PWM switching frequency. The regulator switching frequency can be synchronized to an external clock. The A8591 has external compensation to optimize stability and transient response for a wide range of external components and applications. The A8591 has a fixed soft-start time of 5 ms. Extensive protection features of the A8591 include pulse-by-pulse current limit, hiccup mode short-circuit protection, open/short asynchronous diode protection, BOOT open/short voltage protection, VIN undervoltage lockout, and thermal shutdown. The A8591 is supplied in a 10-pin wettable flank DFN package (suffix EJ) with exposed power pad. It is lead (Pb) free, with 100% matte-tin leadframe plating.
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Suppliers

Company
Product
Description
Supplier Links
Wide Input Voltage 2 A Buck Regulator - A8591KEJTR-J-1 - Allegro MicroSystems Inc.
Manchester, NH, United States
Wide Input Voltage 2 A Buck Regulator
A8591KEJTR-J-1
Wide Input Voltage 2 A Buck Regulator A8591KEJTR-J-1
The A8591 is designed to provide the power supply requirements of next generation car audio and infotainment systems. The A8591 provides all the control and protection circuitry to produce a high-current regulator with ±1% output voltage accuracy. The A8591 employs current-mode control to provide simple compensation, excellent stability, and fast transient response. The A8591 employs pulse-frequency modulation (PFM) to draw less than 33 μA from 12 VIN while supplying 5 V/40 μA (A8591, 5 VOUT), or less than 24 μA from 12 VIN while supplying 3.3 V/40 μA (A8591-1, 3.3 VOUT). When operational, the A8591 operates down to at least 3.6 VIN (VIN falling). The Sleep feature allows for very low standby current. Features of the A8591 include a programmable PWM switching frequency. The regulator switching frequency can be synchronized to an external clock. The A8591 has external compensation to optimize stability and transient response for a wide range of external components and applications. The A8591 has a fixed soft-start time of 5 ms. Extensive protection features of the A8591 include pulse-by-pulse current limit, hiccup mode short-circuit protection, open/short asynchronous diode protection, BOOT open/short voltage protection, VIN undervoltage lockout, and thermal shutdown. The A8591 is supplied in a 10-pin wettable flank DFN package (suffix EJ) with exposed power pad. It is lead (Pb) free, with 100% matte-tin leadframe plating.

The A8591 is designed to provide the power supply requirements of next generation car audio and infotainment systems. The A8591 provides all the control and protection circuitry to produce a high-current regulator with ±1% output voltage accuracy.

The A8591 employs current-mode control to provide simple compensation, excellent stability, and fast transient response. The A8591 employs pulse-frequency modulation (PFM) to draw less than 33 μA from 12 VIN while supplying 5 V/40 μA (A8591, 5 VOUT), or less than 24 μA from 12 VIN while supplying 3.3 V/40 μA (A8591-1, 3.3 VOUT). When operational, the A8591 operates down to at least 3.6 VIN (VIN falling). The Sleep feature allows for very low standby current.

Features of the A8591 include a programmable PWM switching frequency. The regulator switching frequency can be synchronized to an external clock. The A8591 has external compensation to optimize stability and transient response for a wide range of external components and applications. The A8591 has a fixed soft-start time of 5 ms.

Extensive protection features of the A8591 include pulse-by-pulse current limit, hiccup mode short-circuit protection, open/short asynchronous diode protection, BOOT open/short voltage protection, VIN undervoltage lockout, and thermal shutdown.

The A8591 is supplied in a 10-pin wettable flank DFN package (suffix EJ) with exposed power pad. It is lead (Pb) free, with 100% matte-tin leadframe plating.

Supplier's Site Datasheet
Yishun, Singapore
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
1347083-A8591KEJTR-J-1
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators 1347083-A8591KEJTR-J-1
Win Source Part Number: 1347083-A8591KEJTR-J -1 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

Win Source Part Number: 1347083-A8591KEJTR-J-1
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

Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Regulators - A8591KEJTR-J-1 - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
A8591KEJTR-J-1
PMIC - Voltage Regulators - DC DC Switching Regulators A8591KEJTR-J-1
IC REG BUCK 3.3V 2A 10DFN

IC REG BUCK 3.3V 2A 10DFN

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - A8591KEJTR-J-1 - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
A8591KEJTR-J-1
Voltage Regulators - DC DC Switching Regulators A8591KEJTR-J-1
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 10-WFDFN Exposed Pad

Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 10-WFDFN Exposed Pad

Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - A8591KEJTR-J-1 - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
A8591KEJTR-J-1
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators A8591KEJTR-J-1
IC REG BUCK 3.3V 2A 10DFN

IC REG BUCK 3.3V 2A 10DFN

Supplier's Site
Voltage Regulators - DC DC Switching Regulators - 620-1782-6-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
620-1782-6-ND
Voltage Regulators - DC DC Switching Regulators 620-1782-6-ND
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 10-WFDFN Exposed Pad

Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 10-WFDFN Exposed Pad

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - 620-1782-1-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
620-1782-1-ND
Voltage Regulators - DC DC Switching Regulators 620-1782-1-ND
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 10-WFDFN Exposed Pad

Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 10-WFDFN Exposed Pad

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - 620-1782-2-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
620-1782-2-ND
Voltage Regulators - DC DC Switching Regulators 620-1782-2-ND
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 10-WFDFN Exposed Pad

Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 10-WFDFN Exposed Pad

Supplier's Site Datasheet

Technical Specifications

  Allegro MicroSystems Inc. Win Source Electronics Lingto Electronic Limited Quarktwin Technology Ltd. Shenzhen Shengyu Electronics Technology Limited DigiKey
Product Category 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 1347083-A8591KEJTR-J-1 A8591KEJTR-J-1 A8591KEJTR-J-1 A8591KEJTR-J-1 620-1782-6-ND
Product Name Wide Input Voltage 2 A Buck Regulator 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 Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators
Package Type Other; 10-Pin DFN Other; Tape & Reel Other; 10-WFDFN Exposed Pad Other; 10-WFDFN Exposed Pad
Configuration / Function Buck Buck
Output Voltage Type Fixed; Fixed Fixed; Fixed Fixed
Special Features Multiple Outputs; Synchronous Rectification
fsw 300 to 2000 kHz 300 to 2000 kHz 300 to 2000 kHz 300 to 2000 kHz 300 to 2000 kHz
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