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

RS Stock No.:
0265623
Mfr. Prt No.:
L4974A
Brand:
STMicroelectronics

Technical Reference

Legislation and Compliance

RoHS Certificate of Compliance

RS Components
RoHS Certificate of Compliance

EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.

Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.

RS definition of RoHS Compliance:

  • The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
  • and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering

The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:

SubstanceConcentration
Lead0.1%
Mercury0.1%
PBB (Polybrominated Biphenyls)0.1%
PBDE ( Polybrominated Diphenyl Ethers)0.1%
Hexavalent Chromium0.1%
Cadmium0.01%
DEHP (Bis (2-Ethylhexl) phthalate)0.1%
BBP (Benzyl butyl phthalate)0.1%
DBP (Dibutyl phthalate)0.1%
DIBP (Diisobutyl phthalate)0.1%

The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".

RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.

Compliant Product Details
RS stock number 0265623
Product description STMicroelectronics, L4974AStep-Down Switching Regulator, 1-Channel 3.5A Adjustable 20-Pin, PDIP
Manufacturer / Brand STMicroelectronics
Manufacturer part number L4974A

RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK

Statement of Conformity

RS Components
Statement of Conformity

This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.

Compliant Product Details
RS stock number 0265623
Product description STMicroelectronics, L4974AStep-Down Switching Regulator, 1-Channel 3.5A Adjustable 20-Pin, PDIP
Manufacturer / Brand STMicroelectronics
Manufacturer part number L4974A

The foregoing information relates to product sold on, or after, the date shown below.

RS COMPONENTS

Date Jul 25, 2024

RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132


Product Details

Switching Voltage Regulators, STMicroelectronics

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.


Specifications

Attribute Value
Brand STMicroelectronics
Maximum Input Voltage 50 V
Width 7.1 mm
Pin Count 20
Maximum Output Voltage 40 V
Dimensions 24.8 x 7.1 x 4.59 mm
Regulator Function Buck Controller
Line Regulation 30 mV
Load Regulation 25 mV
Minimum Input Voltage 15 V
Package Type PDIP
Maximum Operating Temperature +150 °C
Length 24.8 mm
Minimum Operating Temperature -40 °C
Maximum Output Current 3.5 A
Mounting Type Through Hole
Maximum Switching Frequency 200 kHz
Switching Regulator Yes
Output Type Adjustable
Number of Outputs 1
Height 4.59 mm
Efficiency 90 %
Minimum Output Voltage 5.1 V
Checking stock...
VND
343,585.44
Out of stock
Price Each
Unit(s)Per Unit(VND)
1343,585.44
*price per unit indicative
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