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STMicroelectronics | L5973AD

Manufacturer Part #

L5973AD

L5973AD Series 2 A Switch Step Down Monolithic Power Switching Regulator-HSOP-8

ECAD Model:
Mfr. Name: STMicroelectronics
Standard Pkg:
Product Variant Information section
Date Code: 2431
Product Specification Section
STMicroelectronics L5973AD - Technical Attributes
Attributes Table
Topology: Buck
Input Voltage: 4V to 36V
Output Current-Max: 2A
Output Type: Adjustable
Switching Frequency-Max: 500kHz
Operating Temp Range: -40°C to +150°C
Duty Cycle-Max: 100%
Efficiency: 90%
No. of Outputs: 1
Quiescent Current: 2.7mA
Storage Temperature Range: -55°C to +150°C
Load Regulation: 15mV
Package Style:  HSOP-8
Mounting Method: Surface Mount
Features & Applications

The L5973AD is a step down monolithic power switching regulator with a 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 device uses an internal P-Channel D-MOS transistor (with a typical of 200 mΩ) as switching element to avoid the use of bootstrap capacitor and guarantee high efficiency. An internal oscillator fixes the switching frequency at 500 kHz to minimize the size of external components.

Features:

  • 2 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
  • 500 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: chargers, car battery, DC-DC converters
Pricing Section
Global Stock:
800
USA:
800
On Order:
0
Factory Stock:Factory Stock:
-1
Factory Lead Time:
20 Weeks
Minimum Order:
15
Multiple Of:
1
Total
$21.00
USD
Quantity
Unit Price
15
$1.40
40
$1.39
150
$1.37
400
$1.35
1,500+
$1.32
Product Variant Information section
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