Allegro MicroSystems, LLC A4447SLJTR-T
- Part Number:
- A4447SLJTR-T
- Manufacturer:
- Allegro MicroSystems, LLC
- Ventron No:
- 3754402-A4447SLJTR-T
- Description:
- IC REG BUCK ADJ 2A 8SOIC
- ECAD Model:
-
- Datasheet:
- A4447SLJTR-T
Description
The A4447 is a 2A, high-efficiency buck regulator designed for a wide range of applications. It features an adjustable output voltage from 0.8 to 24 V, determined by an external resistor divider and a 0.8 V ±2% reference. External components include an external clamping diode, inductor, and filter capacitor. The off-time is set by an external resistor to ground. The regulator operates in both continuous and discontinuous modes to maintain light load regulation. An internal blanking circuit filters out transients caused by the reverse recovery of the external clamp diode.
Features
Wide input voltage range: 8 to 50 V
Integrated low R(DS(on)) DMOS switch
2 A continuous output current
Adjustable fixed off-time
Highly efficient
Adjustable output: 0.8 to 24 V
Small package with exposed thermal pad
Applications
Printer power supplies
Office automation equipment
POS thermal, laser, photo, and inkjet printers
Tape drives
Industrial applications with 24 or 36 V bus
The A4447 is a 2A, high-efficiency buck regulator designed for a wide range of applications. It features an adjustable output voltage from 0.8 to 24 V, determined by an external resistor divider and a 0.8 V ±2% reference. External components include an external clamping diode, inductor, and filter capacitor. The off-time is set by an external resistor to ground. The regulator operates in both continuous and discontinuous modes to maintain light load regulation. An internal blanking circuit filters out transients caused by the reverse recovery of the external clamp diode.
Features
Wide input voltage range: 8 to 50 V
Integrated low R(DS(on)) DMOS switch
2 A continuous output current
Adjustable fixed off-time
Highly efficient
Adjustable output: 0.8 to 24 V
Small package with exposed thermal pad
Applications
Printer power supplies
Office automation equipment
POS thermal, laser, photo, and inkjet printers
Tape drives
Industrial applications with 24 or 36 V bus
Allegro MicroSystems, LLC A4447SLJTR-T technical specifications, attributes, parameters and parts with similar specifications to Allegro MicroSystems, LLC A4447SLJTR-T.
- Factory Lead Time8 Weeks
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / Case8-SOIC (0.154, 3.90mm Width) Exposed Pad
- Number of Pins8
- Operating Temperature-20°C~85°C TA
- PackagingTape & Reel (TR)
- Published2009
- JESD-609 Codee3
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)3 (168 Hours)
- Number of Terminations8
- ECCN CodeEAR99
- Terminal FinishMatte Tin (Sn)
- SubcategorySwitching Regulator or Controllers
- Terminal PositionDUAL
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)260
- Reflow Temperature-Max (s)40
- Base Part NumberA4447
- FunctionStep-Down
- Number of Outputs1
- Output Voltage24V
- Output TypeAdjustable
- Max Output Current2A
- Input Voltage-Nom42V
- Max Supply Voltage50V
- Min Supply Voltage8V
- Analog IC - Other TypeSWITCHING REGULATOR
- Output ConfigurationPositive
- Max Output Voltage24V
- Voltage - Output (Min/Fixed)0.8V
- TopologyBuck
- Control ModeCURRENT-MODE
- Control TechniquePULSE WIDTH MODULATION
- Synchronous RectifierNo
- Min Output Voltage800mV
- Voltage - Output (Max)24V
- Max Duty Cycle100 %
- Max Junction Temperature (Tj)150°C
- Ambient Temperature Range High85°C
- Height1.7mm
- Length4.9mm
- Width3.9mm
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
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