You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.

Product may not be an exact match for your search

You previously purchased this product. View in Order History

 
 

L4973D3.3

DC-DC Switching Buck (Step Down) Regulator, Adjustable, 8V-55Vin, 500mV-50Vout, 3.5Aout, SOIC-20

STMICROELECTRONICS L4973D3.3

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
L4973D3.3
Order Code:
2460728
Technical Datasheet:
L4973D3.3   Datasheet
See all Technical Docs

Product Overview

The L4973D3.3 is a step-down monolithic power Switching Regulator delivering 3.5A at fixed voltage of 3.3 or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical RDS(on) of 0.15R) to obtain very high efficiency and very fast switching times. Switching frequency up to 300kHz is achievable. A wide input voltage range between 8 to 55V and output voltages regulated from 3.3 to 40V cover the majority of the today applications. Features of this new generation of DC-to-DC converter includes pulse by pulse current limit, hiccup mode for output short-circuit protection, voltage feed-forward regulation, soft-start, input/output synchronization, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown.
  • Inhibit for zero current consumption (100mA at VCC=24V)
  • Input/output synchronization function
  • Protection against feedback disconnection
  • Output overvoltage protection
  • Internal current limiting (pulse by pulse and HICCUP mode)
  • Zero load current operation (minimum 1mA)
  • Precise 5.1V (1.5%) reference voltage externally available

Applications

Power Management

Product Information

Want to see similar products? Simply select your required attributes below and hit the button ×


:
Buck (Step Down)

:
8V

:
55V

:
1Outputs

:
SOIC

:
20Pins

:
3.5A

:
500mV

:
50V

:
100kHz

:
150°C

:
-

:
-

:
MSL 3 - 168 hours
Find similar products Choose and modify the attributes above to find similar products.

Technical Docs (2)

839 In stock Need more?

839 available for 3 - 4 day despatch

Php293.50

Pricing is unavailable. Please contact customer services.

Price for:
Each
Multiple: 1 Minimum: 1
Quantity Price Your Price
 
 
1+ Php293.50
Promotional price
Contract Price
Web only price
Web only contract price
 
10+ Php249.60
Promotional price
Contract Price
Web only price
Web only contract price
 
100+ Php204.90
Promotional price
Contract Price
Web only price
Web only contract price
 
250+ Php183.80
Promotional price
Contract Price
Web only price
Web only contract price
 
500+ Php176.80
Promotional price
Contract Price
Web only price
Web only contract price
 
1000+ Php147.40
Promotional price
Contract Price
Web only price
Web only contract price
 
2000+ Php142.20
Promotional price
Contract Price
Web only price
Web only contract price
 
5000+ Php137.30
Promotional price
Contract Price
Web only price
Web only contract price
 
 
 

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Basket Add to Basket Pre-Order
Add
Restricted Item
Enter Your Part No/Line Note
Total Price:
Total Price: ( )
Total Price: --