L4973D3.3-013TR STMicroelectronics, L4973D3.3-013TR Datasheet - Page 25
![IC REG SW STEP DOWN 3.5A 20-SOIC](/photos/6/56/65691/497-20-soic__7_5mm_width__series_sml.jpg)
L4973D3.3-013TR
Manufacturer Part Number
L4973D3.3-013TR
Description
IC REG SW STEP DOWN 3.5A 20-SOIC
Manufacturer
STMicroelectronics
Type
Step-Down (Buck)r
Datasheet
1.L4973D5.1-013TR.pdf
(28 pages)
Specifications of L4973D3.3-013TR
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
5.1 V
Output Current
3.5 A
Input Voltage
8 V to 55 V
Switching Frequency
90 KHz to 110 KHz
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
SMD/SMT
Duty Cycle (max)
97 %
For Use With
497-4743 - BOARD EVAL FOR L4973X SW REG
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
497-3358-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
L4973D3.3-013TR
Manufacturer:
ST
Quantity:
1 000
Part Number:
L4973D3.3-013TR
Manufacturer:
ST
Quantity:
20 000
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