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Allegro MicroSystems Inc. High Voltage Step Down Regulator A4447SLJTR-T

Description
The A4447 is a 2A, high efficiency general-purpose buck regulator designed for a wide variety of applications. The output voltage is adjustable from 0.8 to 24V, based on a resistor divider and the 0.8V ±2% reference. External components include an external clamping diode, inductor, and filter capacitor. The off-time is determined by an external resistor to ground. It operates in both continuous and discontinuous modes to maintain light load regulation. An internal blanking circuit is used to filter out transients due to the reverse recovery of the external clamp diode. Typical blanking time is 200 ns. This new device is ideal for various end products including applications with 8 to 50 V input voltage range and require up to 2 A output current, such as uninterruptible power supplies, point of sale (POS) applications, and industrial applications with 24 or 36 V bus.
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Suppliers

Company
Product
Description
Supplier Links
High Voltage Step Down Regulator - A4447SLJTR-T - Allegro MicroSystems Inc.
Manchester, NH, United States
High Voltage Step Down Regulator
A4447SLJTR-T
High Voltage Step Down Regulator A4447SLJTR-T
The A4447 is a 2A, high efficiency general-purpose buck regulator designed for a wide variety of applications. The output voltage is adjustable from 0.8 to 24V, based on a resistor divider and the 0.8V ±2% reference. External components include an external clamping diode, inductor, and filter capacitor. The off-time is determined by an external resistor to ground. It operates in both continuous and discontinuous modes to maintain light load regulation. An internal blanking circuit is used to filter out transients due to the reverse recovery of the external clamp diode. Typical blanking time is 200 ns. This new device is ideal for various end products including applications with 8 to 50 V input voltage range and require up to 2 A output current, such as uninterruptible power supplies, point of sale (POS) applications, and industrial applications with 24 or 36 V bus.

The A4447 is a 2A, high efficiency general-purpose buck regulator designed for a wide variety of applications. The output voltage is adjustable from 0.8 to 24V, based on a resistor divider and the 0.8V ±2% reference. External components include an external clamping diode, inductor, and filter capacitor. The off-time is determined by an external resistor to ground. It operates in both continuous and discontinuous modes to maintain light load regulation. An internal blanking circuit is used to filter out transients due to the reverse recovery of the external clamp diode. Typical blanking time is 200 ns.

This new device is ideal for various end products including applications with 8 to 50 V input voltage range and require up to 2 A output current, such as uninterruptible power supplies, point of sale (POS) applications, and industrial applications with 24 or 36 V bus.

Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Regulators - A4447SLJTR-T - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
A4447SLJTR-T
PMIC - Voltage Regulators - DC DC Switching Regulators A4447SLJTR-T
IC REG BUCK ADJUSTABLE 2A 8SOIC

IC REG BUCK ADJUSTABLE 2A 8SOIC

Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - A4447SLJTR-T - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
A4447SLJTR-T
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators A4447SLJTR-T
IC REG BUCK ADJ 2A 8SOIC

IC REG BUCK ADJ 2A 8SOIC

Supplier's Site
Voltage Regulators - DC DC Switching Regulators - A4447SLJTR-T - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
A4447SLJTR-T
Voltage Regulators - DC DC Switching Regulators A4447SLJTR-T
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - 620-1329-6-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
620-1329-6-ND
Voltage Regulators - DC DC Switching Regulators 620-1329-6-ND
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - 620-1329-2-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
620-1329-2-ND
Voltage Regulators - DC DC Switching Regulators 620-1329-2-ND
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - 620-1329-1-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
620-1329-1-ND
Voltage Regulators - DC DC Switching Regulators 620-1329-1-ND
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Supplier's Site Datasheet
 - 8660802P - RS Components, Ltd.
Corby, Northants, United Kingdom
A high-voltage buck converter with a competitive rate of efficiency. Able to handle a wide input operating voltage range, this step-down regulator is typically used in consumer equipment power supplies. Maximum Output Current = 2A Maximum Output Voltage = 24 V Regulator Function = Step Down Minimum Output Voltage = 0.8 V Minimum Input Voltage = 8 V Maximum Input Voltage = 50 V Output Type = Adjustable Mounting Type = Surface Mount Number of Outputs = 1 Pin Count = 8 Delivery on production packaging - Reel. This product is non-returnable.

A high-voltage buck converter with a competitive rate of efficiency. Able to handle a wide input operating voltage range, this step-down regulator is typically used in consumer equipment power supplies.
Maximum Output Current = 2A
Maximum Output Voltage = 24 V
Regulator Function = Step Down
Minimum Output Voltage = 0.8 V
Minimum Input Voltage = 8 V
Maximum Input Voltage = 50 V
Output Type = Adjustable
Mounting Type = Surface Mount
Number of Outputs = 1
Pin Count = 8
Delivery on production packaging - Reel. This product is non-returnable.

Supplier's Site
 - 8660802 - RS Components, Ltd.
Corby, Northants, United Kingdom
A high-voltage buck converter with a competitive rate of efficiency. Able to handle a wide input operating voltage range, this step-down regulator is typically used in consumer equipment power supplies. Maximum Output Current = 2A Maximum Output Voltage = 24 V Regulator Function = Step Down Minimum Output Voltage = 0.8 V Minimum Input Voltage = 8 V Maximum Input Voltage = 50 V Output Type = Adjustable Mounting Type = Surface Mount Number of Outputs = 1 Pin Count = 8

A high-voltage buck converter with a competitive rate of efficiency. Able to handle a wide input operating voltage range, this step-down regulator is typically used in consumer equipment power supplies.
Maximum Output Current = 2A
Maximum Output Voltage = 24 V
Regulator Function = Step Down
Minimum Output Voltage = 0.8 V
Minimum Input Voltage = 8 V
Maximum Input Voltage = 50 V
Output Type = Adjustable
Mounting Type = Surface Mount
Number of Outputs = 1
Pin Count = 8

Supplier's Site
Integrated Circuits - A4447SLJTR-T - LIXINC Electronics Co., Limited
Hong Kong, China
Integrated Circuits
A4447SLJTR-T
Integrated Circuits A4447SLJTR-T
IC REG BUCK ADJUSTABLE 2A 8SOIC

IC REG BUCK ADJUSTABLE 2A 8SOIC

Supplier's Site Datasheet
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - A4447SLJTR-T - 090429-A4447SLJTR-T - Win Source Electronics
Yishun, Singapore
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - A4447SLJTR-T
090429-A4447SLJTR-T
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - A4447SLJTR-T 090429-A4447SLJTR-T
Manufacturer: Allegro MicroSystems, LLC Win Source Part Number: 090429-A4447SLJTR-T Packaging: Reel - TR Mounting: SMD (SMT) Output Type: Adjustable Topology: Buck Number of Outputs: 1 Synchronous Rectifier: No Output Current: 2A Categories: Integrated Circuits Status: Active Temperature Range - Operating: -20°C to 85°C (TA) Case / Package: 8-SOIC-EP Purpose: Step-Down Maximum Input Voltage: 50V Nominal Output Voltage (Min/Fixed): 0.8V Maximum Output Voltage: 24V Minimum Input Voltage: 8V Is this a common-used part?: Yes Popularity: High Fake Threat In the Open Market: 72 pct. Supply and Demand Status: Limited

Manufacturer: Allegro MicroSystems, LLC
Win Source Part Number: 090429-A4447SLJTR-T
Packaging: Reel - TR
Mounting: SMD (SMT)
Output Type: Adjustable
Topology: Buck
Number of Outputs: 1
Synchronous Rectifier: No
Output Current: 2A
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -20°C to 85°C (TA)
Case / Package: 8-SOIC-EP
Purpose: Step-Down
Maximum Input Voltage: 50V
Nominal Output Voltage (Min/Fixed): 0.8V
Maximum Output Voltage: 24V
Minimum Input Voltage: 8V
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 72 pct.
Supply and Demand Status: Limited

Supplier's Site Datasheet

Technical Specifications

  Allegro MicroSystems Inc. Lingto Electronic Limited Shenzhen Shengyu Electronics Technology Limited Quarktwin Technology Ltd. DigiKey RS Components, Ltd. LIXINC Electronics Co., Limited Win Source Electronics
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 IC Switching Voltage Regulators
Product Number A4447SLJTR-T A4447SLJTR-T A4447SLJTR-T A4447SLJTR-T 620-1329-6-ND 8660802P A4447SLJTR-T 090429-A4447SLJTR-T
Product Name High Voltage Step Down Regulator PMIC - Voltage Regulators - DC DC Switching Regulators Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators Integrated Circuits PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - A4447SLJTR-T
Package Type Other; 8-Pin SOIC SOIC SOIC; Other; 8-SOIC (0.154\", 3.90mm Width) Exposed Pad SOIC; Other; 8-SOIC (0.154", 3.90mm Width) Exposed Pad SOIC; Other; Tape & Reel (TR)Cut Tape (CT)Digi-Reel庐 SOIC; Other; 8-SOIC-EP
Output Voltage Type Adjustable / Variable Adjustable / Variable; Adjustable Adjustable / Variable Adjustable / Variable Adjustable / Variable; Adjustable Adjustable / Variable; Adjustable
IOUT 2 amps 2 amps 2 amps 2 amps 2 amps 2 amps 2 amps
Life Cycle Stage Active Active Active Maturity; Active
Output Voltage 0.8000 volts 0.8000 to 24 volts 0.8000 to 24 volts 0.8000 to 24 volts 0.8000 volts 0.8000 volts
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