STMicroelectronics, L4974A Step-Down Switching Regulator, 1-Channel 3.5A Adjustable 20-Pin, PDIP

RS Stock No.: 265-623Brand: STMicroelectronicsManufacturers Part No.: L4974A
brand-logo
View all in Buck Converters

Technical Document

Specifications

Brand

STMicroelectronics

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

Maximum Switching Frequency

200 kHz

Pin Count

20

Package Type

PDIP

Switching Regulator

Yes

Line Regulation

30 mV

Load Regulation

25 mV

Efficiency

90%

Dimensions

24.8 x 7.1 x 4.59mm

Minimum Operating Temperature

-40 °C

Height

4.59mm

Maximum Operating Temperature

+150 °C

Length

24.8mm

Width

7.1mm

Product details

DC-DC Switching Converters, Step-Down Regulators, STMicroelectronics

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

Switching Voltage Regulators, STMicroelectronics

Ideate. Create. Collaborate

JOIN FOR FREE

No hidden fees!

design-spark
design-spark
  • Download and use our DesignSpark software for your PCB and 3D Mechanical designs
  • View and contribute website content and forums
  • Download 3D Models, Schematics and Footprints from more than a million products
Click here to find out more

Stock information temporarily unavailable.

Please check again later.

Stock information temporarily unavailable.

P.O.A.

STMicroelectronics, L4974A Step-Down Switching Regulator, 1-Channel 3.5A Adjustable 20-Pin, PDIP
Select packaging type

Select packaging type

Standard - each

Available in multiples of 1.

Production -

Available in multiples of 1.

Recommended for ordering in large quantities. Items are packaged ready for insertion into machinery, allowing you to improve production efficiency.

1

Available in multiples of 1
1P.O.A.
2P.O.A.
3P.O.A.
4P.O.A.
5P.O.A.
6P.O.A.
7P.O.A.
8P.O.A.
9P.O.A.
10P.O.A.
11P.O.A.
12P.O.A.
13P.O.A.
14P.O.A.
15P.O.A.

P.O.A.

STMicroelectronics, L4974A Step-Down Switching Regulator, 1-Channel 3.5A Adjustable 20-Pin, PDIP
Stock information temporarily unavailable.
Select packaging type

Select packaging type

Standard - each

Available in multiples of 1.

Production -

Available in multiples of 1.

Recommended for ordering in large quantities. Items are packaged ready for insertion into machinery, allowing you to improve production efficiency.

1

Available in multiples of 1
1P.O.A.
2P.O.A.
3P.O.A.
4P.O.A.
5P.O.A.
6P.O.A.
7P.O.A.
8P.O.A.
9P.O.A.
10P.O.A.
11P.O.A.
12P.O.A.
13P.O.A.
14P.O.A.
15P.O.A.

Ideate. Create. Collaborate

JOIN FOR FREE

No hidden fees!

design-spark
design-spark
  • Download and use our DesignSpark software for your PCB and 3D Mechanical designs
  • View and contribute website content and forums
  • Download 3D Models, Schematics and Footprints from more than a million products
Click here to find out more

Technical Document

Specifications

Brand

STMicroelectronics

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

Maximum Switching Frequency

200 kHz

Pin Count

20

Package Type

PDIP

Switching Regulator

Yes

Line Regulation

30 mV

Load Regulation

25 mV

Efficiency

90%

Dimensions

24.8 x 7.1 x 4.59mm

Minimum Operating Temperature

-40 °C

Height

4.59mm

Maximum Operating Temperature

+150 °C

Length

24.8mm

Width

7.1mm

Product details

DC-DC Switching Converters, Step-Down Regulators, STMicroelectronics

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

Switching Voltage Regulators, STMicroelectronics

Ideate. Create. Collaborate

JOIN FOR FREE

No hidden fees!

design-spark
design-spark
  • Download and use our DesignSpark software for your PCB and 3D Mechanical designs
  • View and contribute website content and forums
  • Download 3D Models, Schematics and Footprints from more than a million products
Click here to find out more