L4973V3.3 STMicroelectronics, L4973V3.3 Datasheet - Page 2

IC REG SW 3.5A STEPDOWN 18PWRDIP

L4973V3.3

Manufacturer Part Number
L4973V3.3
Description
IC REG SW 3.5A STEPDOWN 18PWRDIP
Manufacturer
STMicroelectronics
Type
Step-Down (Buck)r
Datasheet

Specifications of L4973V3.3

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
Through Hole
Package / Case
18-DIP (0.300", 7.62mm)
Power - Output
5W
Output Voltage
3.36 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
Through Hole
Duty Cycle (max)
97 %
For Use With
497-4743 - BOARD EVAL FOR L4973X SW REG
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-1413-5

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L4973V3.3
Manufacturer:
ST
Quantity:
5 510
Part Number:
L4973V3.3
Manufacturer:
ST-MICROE
Quantity:
331
Part Number:
L4973V3.3
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
L4973V3.3
Quantity:
9 000
Part Number:
L4973V3.3-7/
Manufacturer:
ST
0
Contents
Contents
1
2
3
4
5
6
7
8
9
10
11
2/28
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1
2.2
Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1
3.2
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Application ideas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
L4973

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