STMicroelectronics, L4974AStep-Down Switching Regulator, 1-Channel 3.5A Adjustable 20-Pin, PDIP

This image is representative of the product range

Discontinued product

Technical data sheets

ST’s monolithic switching regulators offer high input-voltage capability, and deliver output currents up to 4A, with high switching frequency.

For products that are Customized and under Non-cancellable & Non-returnable, Sales & Conditions apply.

Switching Voltage Regulators, STMicroelectronics

Attribute	Value
Maximum Output Current	3.5A
Maximum Output Voltage	40 V
Regulator Function	Buck Controller
Minimum Output Voltage	5.1 V
Minimum Input Voltage	15 V
Maximum Input Voltage	50 V
Output Type	Adjustable
Mounting Type	Through Hole
Number of Outputs	1
Pin Count	20
Maximum Switching Frequency	200 kHz
Package Type	PDIP
Switching Regulator	Yes
Line Regulation	30 mV
Load Regulation	25 mV
Height	4.59mm
Minimum Operating Temperature	-40 °C
Efficiency	90%
Width	7.1mm
Dimensions	24.8 x 7.1 x 4.59mm
Length	24.8mm
Maximum Operating Temperature	+150 °C