L5972D:Up to 1.5 A step down switching regulator

The L5972D is a step down monolithic power switching regulator with a minimum switch current limit of 2A so it is able to deliver more than 1.5A DC current to the load depending on the application conditions.

The output voltage can be set from 1.235V to 35V.

The device uses an internal P-Channel D-MOS transistor (with a typical Rdson of 250mΩ) as switching element to minimize the size of the external components.

An internal oscillator fixes the switching frequency at 250kHz.

Having a minimum input voltage of 4.4V only, it is particularly suitable for 5V bus, available in all computer related applications.

Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.

Key Features

  • Thermal shutdown
  • Protection against feedback disconnection
  • Zero load current operation
  • Voltage feedforward
  • 2A internal switch
  • Output voltage adjustable from 1.235V to 35V
  • Operating input voltage from 4.4V to 36V
  • 250kHz Internally fixed frequency
  • Internal current limiting
  • Low dropout operation: 100% duty cycle
产品规格
DescriptionVersionSize
DS2670: 2A switch step down switching regulator10.2246 KB
应用手册
DescriptionVersionSize
AN1517: Designing with the STEVAL-ISA089V1 high efficiency DC-DC converter3.01 MB
Design Notes & Tips
DescriptionVersionSize
DN0010: Adapting ST power line modem evaluation boards to communicate over a DC bus1.1405 KB
DN0011: ST1S03 alternative topology: Using a buck in a negative buck-boost configuration1.1359 KB
手册
DescriptionVersionSize
Brochure Power management guide05.20167 MB
解决方案评估工具
型号制造商Description
EVAL5972DL5972D Up to 2A Step Down Switching Regulator Evaluation Board
样片和购买
型号PackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
L5972DSO-8Tube0.9911000NECEAR99CHINA
L5972D013TRSO-8Tape And Reel0.9911000NECEAR99CHINA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
L5972DSO-8IndustrialEcopack2 (**)md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_a5o7ud72ec6-wspc-(l5972d013tr)-wspc-wcp-wspc-ver2_signed.pdf
md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_a5o7ud72ec6-wspc-(l5972d013tr)-wspc-wcp-wspc-ver2.xml
L5972D013TRSO-8IndustrialEcopack2 (**)md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_a5o7ud72ec6-wspc-(l5972d013tr)-wspc-wcp-wspc-ver2_signed.pdf
md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_a5o7ud72ec6-wspc-(l5972d013tr)-wspc-wcp-wspc-ver2.xml
2A switch step down switching regulator L5972D
Designing with the STEVAL-ISA089V1 high efficiency DC-DC converter STEVAL-ISA089V1
Adapting ST power line modem evaluation boards to communicate over a DC bus L4971
ST1S03 alternative topology: Using a buck in a negative buck-boost configuration L5986
Very low drop voltage regulators with inhibit KFXX
md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_a5o7ud72ec6-wspc-(l5972d013tr)-wspc-wcp-wspc-ver2_signed.pdf L5972D
md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_a5o7ud72ec6-wspc-(l5972d013tr)-wspc-wcp-wspc-ver2.xml L5972D