Name: L4974A
Brand: STMicroelectronics
SKU: L4974A
Price: 12.68000 USD
Availability: InStock

Technical Specifications

Parameter Name	Value
Type	Parameter
Factory Lead Time	13 Weeks
Lifecycle Status	ACTIVE (Last Updated: 8 months ago)
Mount	Through Hole
Mounting Type	Through Hole
Package / Case	20-DIP (0.300, 7.62mm)
Number of Pins	20
Weight	4.535924g
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	20
ECCN Code	EAR99
Terminal Finish	Tin (Sn)
Subcategory	Switching Regulator or Controllers
Technology	BCDMOS
Terminal Position	DUAL
Terminal Pitch	2.54mm
Frequency	200kHz
Base Part Number	L4974
Function	Step-Down
Number of Outputs	1
Efficiency	90 %
Output Voltage	40V
Output Type	Adjustable
Max Output Current	3.5A
Operating Supply Voltage	50V
Voltage - Input (Min)	15V
Input Voltage-Nom	35V
Analog IC - Other Type	SWITCHING REGULATOR
Output Configuration	Positive
Max Output Voltage	40V
Topology	Buck
Control Mode	VOLTAGE-MODE
Frequency - Switching	100kHz~200kHz
Control Technique	PULSE WIDTH MODULATION
Synchronous Rectifier	No
Dropout Voltage	450mV
Nominal Input Voltage	50V
Min Output Voltage	5.1V
Voltage - Output (Max)	40V
Height	4.59mm
Length	24.8mm
Width	7.1mm
REACH SVHC	No SVHC
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free

L4974A Product Details

L4974A Overview

For optimal performance, this voltage regulator makes use of the Tube package. In this voltage regulator, there are a total of 20 terminations. There are two types of analog ICs in this voltage regulator 12v: SWITCHING REGULATOR ICs, which are the ones used in older voltage regulator 12vs. The harley voltage regulator is available as a 20-DIP (0.300, 7.62mm) package to save space. A total of 1 outputs are configured in this voltage regulator. This DC DC switching regulator generates Adjustable output on its output pins. A voltage regulator 12v such as this one fits the Through Hole mounting bracket. The operating temperature should be kept at -40°C~150°C TJ when the voltage regulator 12v is in operation. In this voltage regulator 12v, the switching frequency is 100kHz~200kHz. A dc to dc voltage regulator's minimum input voltage of 15V is required for this voltage regulator to operate. The voltage regulator 12v is designed to provide a nominal input voltage of 35V for operation. I would like to point out that this voltage regulator belongs to the Switching Regulator or Controllers subcategory. There is a DC/DC regulator in this family that belongs to the L4974 family. At 40V volts, voltage regulator can provide voltage. There are 20 pins that are used for the operation of the voltage regulator 12v. In order to use this voltage regulator 12v at its full potential, the output voltage should be kept at at least 5.1V. The maximum output current reaches 3.5A A to meet the switching regulator operation requirements. By using the 40V's maximal output voltage, adjusting voltage regulator can operate easily. DC DC switching regulator offers a maximum output voltage of 40V as its maximum output voltage. With 50V as the supply voltage, this DC-DC switching regulator will operate. When the frequency is 200kHz, DC DC switching regulator can maintain high accuracy.