L4973D3.3 STMicroelectronics, L4973D3.3 Datasheet - Page 27

• Manufacturer Part Number: L4973D3.3
• Description: IC BUCK SYNC 3.3/ADJ 3.5A SOIC20
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L4973D3.3

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V, 0.5 ~ 50 V
• Current - Output: 3.5A
• Frequency - Switching: 100kHz ~ 300kHz
• Voltage - Input: 8 ~ 55 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Power - Output: 4W
• Output Voltage: 50 V
• Mounting Style: SMD/SMT
• For Use With: 497-4743 - BOARD EVAL FOR L4973X SW REG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

L4973
11
Revision history
Table 11.
12-Sep-2001
07-May-2005
14-Dec-2005
06-Dec-2006
07-May-2007
26-Feb-2009
Date
Document revision history
Revision
18
13
14
15
16
17
First Issue
Updated the Layout look & feel.
Changed name of the D1 on the fig. 5.
Added the ECOPACK part numbers in the Table 1. Order Codes.
The document has been reformatted, and order codes updated
New data on
Updated
Section 5: Evaluation board on page 9
Table 4
Changes
Revision history
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