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STMicroelectronics | L5973D

Manufacturer Part #

L5973D

L5973D Series 36 V 300 uA 250 kHz Switch Step Down Switching Regulator - HSOP-8

ECAD Model:
Mfr. Name: STMicroelectronics
Standard Pkg:
Product Variant Information section
Date Code: 2518
Product Specification Section
STMicroelectronics L5973D - Technical Attributes
Attributes Table
Topology: Buck
Input Voltage: 36V
Output Current-Max: 2.5A
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: 15mV
Package Style:  HSOP-8
Mounting Method: Surface Mount
Features & Applications

The L5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.5 A so it is able to deliver more than 2 A DC current to the load depending on the application conditions.

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.

Features:

  • 2.5 A internal switch
  • Operating input voltage from 4 V to 36 V
  • 3.3 V (±2%) reference voltage
  • 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
  • Inhibit for zero current consumption
  • Synchronization
  • 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:
2,850
USA:
2,850
On Order:
0
Factory Stock:Factory Stock:
-1
Factory Lead Time:
20 Weeks
Minimum Order:
20
Multiple Of:
1
Total
$22.40
USD
Quantity
Unit Price
20
$1.12
50
$1.10
200
$1.07
500
$1.05
2,000+
$0.995
Product Variant Information section
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