LM2574HVN-15/NOPB National Semiconductor, LM2574HVN-15/NOPB Datasheet - Page 22
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LM2574HVN-15/NOPB
Manufacturer Part Number
LM2574HVN-15/NOPB
Description
IC REG SW 15V 500MA STP DN 8-DIP
Manufacturer
National Semiconductor
Series
SIMPLE SWITCHER®r
Type
Step-Down (Buck)r
Datasheet
1.LM2574MX-ADJNOPB.pdf
(24 pages)
Specifications of LM2574HVN-15/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
15V
Current - Output
500mA
Frequency - Switching
52kHz
Voltage - Input
4 ~ 60 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Power - Output
750mW
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*LM2574HVN-15
*LM2574HVN-15/NOPB
LM2574HVN-15
*LM2574HVN-15/NOPB
LM2574HVN-15
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Definition of Terms
INDUCTOR SATURATION
The condition which exists when an inductor cannot hold any
more magnetic flux. When an inductor saturates, the induc-
tor appears less inductive and the resistive component domi-
nates. Inductor current is then limited only by the DC resis-
tance of the wire and the available source current.
(Continued)
22
OPERATING VOLT MICROSECOND CONSTANT (E • T
The product (in VoIt • µs) of the voltage applied to the inductor
and the time the voltage is applied. This E • T
measure of the energy handling capability of an inductor and
is dependent upon the type of core, the core area, the num-
ber of turns, and the duty cycle.
op
constant is a
op
)