text.skipToContent text.skipToNavigation

Manufacturer Part #

L5972D

L5972D Series 36 V 300 uA 280 kHz Buck SMT Switching Regulator - SOIC-8

ECAD Model:
Mfr. Name: STMicroelectronics
Standard Pkg:
Product Variant Information section
Date Code: 1816
Product Specification Section
Technical Attributes
Attributes Table
Topology: Buck
Input Voltage: 36V
Output Current-Max: 300µA
Output Voltage Range: 1.235V to 35V
Output Type: Adjustable
Switching Frequency-Max: 280kHz
Operating Temp Range: -40°C to +150°C
Duty Cycle-Max: 100%
Efficiency: 90%
No. of Outputs: 1
Quiescent Current: 2.5mA
Storage Temperature Range: -55°C to +150°C
Load Regulation: 0mV
Package Style:  SOIC-8
Mounting Method: Surface Mount
Features & Applications

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

The output voltage can be set from 1.235 V to 35 V. The device uses an internal P-Channel D-MOS transistor (with a typical Rdson of 250 mΩ) as switching element to minimize the size of the external components. An internal oscillator fixes the switching frequency at 250 kHz. Having a minimum input voltage of 4.4 V only, it is particularly suitable for 5V bus, available in all computer related applications.

Features:

  • 2 A internal switch
  • Operating input voltage from 4.4 V to 36 V
  • Output voltage adjustable from 1.235 V to 35 V
  • Low dropout operation: 100% duty cycle
  • 250 kHz Internally fixed frequency
  • Voltage feedforward
  • Zero load current operation
  • Internal current limiting
  • Protection against feedback disconnection
  • Thermal shutdown

Applications:

  • Consumer: STB, DVD, TV, VCR, car radio, LCD monitors
  • Networking: XDSL, modems, DC-DC modules
  • Computer: printers, audio/graphic cards, optical storage, hard disk drive
  • Industrial: changers, car battery, DC-DC converters
Pricing Section
Global Stock:
1,000
Germany (Online Only):
1,000
On Order:
0
Factory Stock:Factory Stock:
0
Minimum Order:
100
Multiple Of:
100
Total
$146.00
USD
Quantity
Web Price
100
$1.46
300
$1.25
500
$1.23
2,000
$1.18
3,000+
$1.17
Product Variant Information section