LM2578A, LM3578A

SNVS767E – AUGUST 2000 – REVISED APRIL 2013

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Electrical Characteristics (continued)

These specifications apply for 2V

≤ VIN ≤ 40V (2.2V ≤ VIN ≤ 40V for TJ ≤ −25°C), timing capacitor CT = 3900 pF, and 25% ≤

duty cycle

≤ 75%, unless otherwise specified. Values in standard typeface are for TJ = 25°C; values in boldface type apply

for operation over the specified operating junction temperature range.

Typical(1)

LM2578A/

Symbol

Parameter

Conditions

LM3578A

Units

Limit (2)

DEVICE POWER CONSUMPTION

IS

Supply Current

Output OFF, VE = 0V

2.0

mA

3.5/4.0

mA (max)

Output ON, IC = 750 mA pulsed,

14

mA

VE = 0V

4

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