L4973D3.3 STMicroelectronics, L4973D3.3 Datasheet - Page 24

• 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

Package mechanical data
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Table 8.
Figure 45. Package dimensions
Dim.
a1
b1
e3
D
B
b
E
e
F
L
Z
I
DIP-18 mechanical data
0.51
0.85
0.38
Min
20.32
0.50
8.80
2.54
3.30
Typ
mm.
24.80
Max
1.40
0.50
7.10
5.10
2.54
0.020
0.033
0.015
Min
0.020
0.346
0.100
0.800
0.130
Typ
inch
0.055
0.020
0.976
0.280
0.201
0.100
Max
L4973