LM2574HVN-ADJ National Semiconductor, LM2574HVN-ADJ Datasheet - Page 22

• Manufacturer Part Number: LM2574HVN-ADJ
• Description: IC, STEP-DOWN REGULATOR, 8-DIP
• Manufacturer: National Semiconductor

Specifications of LM2574HVN-ADJ

• Primary Input Voltage: 60V
• No. Of Outputs: 1
• Output Voltage: 57V
• Output Current: 500mA
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +125°C
• Supply Voltage Range: 4V To 60V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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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
)