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L4978
STMicroelectronicsRoHS 
RoHS compliant
RoHS compliantPackage 8-DIP (0.300, 7.62mm)
Category PMIC - Voltage Regulators - DC DC Switching Regulators / PMIC - Voltage Regulators - DC DC Switching Regulators
Description
L4978 Tube Active Step-Down DC to DC switching regulator 580mV 6.6mm 2A 100kHz~300kHz
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Inventory: 339
Minimum: 1
Total Price: USD $1.59
Unit Price: USD $1.593861
≥1 USD $1.593861
≥10 USD $1.448129
≥50 USD $1.356226
≥100 USD $1.156665
Technical Details
Supply Chain
Factory Lead Time 13 Weeks
Physical
Contact Plating Tin
Mount Through Hole
Mounting Type Through Hole
Package / Case 8-DIP (0.300, 7.62mm)
Number of Pins 8
Technical
Operating Temperature -40°C~150°C TJ
Packaging Tube
JESD-609 Code e3
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 8
ECCN Code EAR99
Subcategory Switching Regulator or Controllers
Technology BCDMOS
Terminal Position DUAL
Terminal Pitch 2.54mm
Frequency 300kHz
Base Part Number L4978
Function Step-Down
Number of Outputs 1
Efficiency 87 %
Voltage - Input (Max) 55V
Output Voltage 50V
Output Type Adjustable
Max Output Current 2A
Operating Supply Voltage 55V
Voltage - Input (Min) 8V
Input Voltage-Nom 24V
Analog IC - Other Type SWITCHING REGULATOR
Output Configuration Positive
Max Output Voltage 50V
Topology Buck
Control Mode VOLTAGE-MODE
Frequency - Switching 100kHz~300kHz
Control Technique PULSE WIDTH MODULATION
Supply Current-Max (Isup) 6mA
Synchronous Rectifier No
Dropout Voltage 580mV
Min Output Voltage 3.3V
Compliance
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Dimensions
Height 3.32mm
Length 10.92mm
Width 6.6mm
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