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A4447SLJTR-T
Allegro MicroSystemsRoHS 
RoHS compliant
RoHS compliantPackage 8-SOIC (0.154, 3.90mm Width) Exposed Pad
Category PMIC - Voltage Regulators - DC DC Switching Regulators / PMIC - Voltage Regulators - DC DC Switching Regulators
Description
A4447 Tape & Reel (TR) Matte Tin (Sn) Active DC to DC switching regulator 42V 3.9mm 2A -20C~85C TA
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Inventory: 2994
Minimum: 1
Total Price: USD $1
Unit Price: USD $1.003056
≥1 USD $1.003056
≥10 USD $0.841569
≥30 USD $0.752292
≥100 USD $0.652511
≥500 USD $0.607873
≥1000 USD $0.586866
Technical Details
Supply Chain
Factory Lead Time 8 Weeks
Physical
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154, 3.90mm Width) Exposed Pad
Number of Pins 8
Technical
Operating Temperature -20°C~85°C TA
Packaging Tape & Reel (TR)
Published 2009
JESD-609 Code e3
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 8
ECCN Code EAR99
Terminal Finish Matte Tin (Sn)
Subcategory Switching Regulator or Controllers
Terminal Position DUAL
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 260
Time@Peak Reflow Temperature-Max (s) 40
Base Part Number A4447
Function Step-Down
Number of Outputs 1
Output Voltage 24V
Output Type Adjustable
Max Output Current 2A
Input Voltage-Nom 42V
Max Supply Voltage 50V
Min Supply Voltage 8V
Analog IC - Other Type SWITCHING REGULATOR
Output Configuration Positive
Max Output Voltage 24V
Voltage - Output (Min/Fixed) 0.8V
Topology Buck
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Synchronous Rectifier No
Min Output Voltage 800mV
Voltage - Output (Max) 24V
Max Duty Cycle 100 %
Max Junction Temperature (Tj) 150°C
Ambient Temperature Range High 85°C
Dimensions
Height 1.7mm
Length 4.9mm
Width 3.9mm
Compliance
RoHS Status ROHS3 Compliant
Lead Free Lead Free
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