L4973D3.3 STMicroelectronics, L4973D3.3 Datasheet - Page 25

• 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
Table 9.
Figure 46. Package dimensions
Dim.
ddd
A1
D
C
H
A
B
E
e
h
L
k
(1)
SO-20 mechanical data
12.60
2.35
0.10
0.33
0.23
7.40
10.0
0.25
0.40
Min
1.27
Typ
mm.
13.00
10.65
Max
2.65
0.30
0.51
0.32
7.60
0.75
1.27
0.10
0° (min.), 8° (max.)
0.093
0.004
0.013
0.009
0.496
0.291
0.394
0.010
0.016
Min
Package mechanical data
0.050
Typ
inch
0.104
0.012
0.200
0.013
0.512
0.299
0.419
0.030
0.050
0.004
Max
25/28