LM3578A MWC National Semiconductor, LM3578A MWC Datasheet - Page 2

• Manufacturer Part Number: LM3578A MWC
• Description: Switching Regulator
• Manufacturer: National Semiconductor

www.national.com
OSCILLATOR
f
REFERENCE/COMPARATOR (Note 8)
V
I
OUTPUT
V
V
I
BV
OSC
INV
CES
These specifications apply for 2V
duty cycle
operation over the specified operating junction temperature range.
f
V
V
R
C
E
Symbol
Electrical Characteristics
OSC
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Total Supply Voltage
Collector Output to Ground
Emitter Output to Ground (Note 2)
Power Dissipation (Note 3)
Output Current
Storage Temperature
Lead Temperature
Maximum Junction Temperature
R
R
CEO(SUS)
(sat)
(sat)
/ V
/ t
(soldering, 10 seconds)
/ T
IN
75%, unless otherwise specified. Values in standard typeface are for T
Frequency
Frequency Drift with
Temperature
Amplitude
Input Reference
Voltage
Input Reference Volt-
age Line Regulation
Inverting Input
Current
Level Shift Accuracy
Input Reference
Voltage Long Term
Stability
Collector Saturation
Voltage
Emitter Saturation
Voltage
Collector Leakage
Current
Collector-Emitter
Sustaining Voltage
Parameter
V
IN
I
I
I
I
I
Level Shift Current = 1 mA
I
grounded
I
V
V
grounded, Output OFF
I
1
1
1
1
1
C
O
SUST
IN
IN
= I
= I
= I
= I
= I
= 750 mA pulsed, Emitter
= 80 mA pulsed,
40V (2.2V
= V
= V
2
2
2
2
2
−65˚C to +150˚C
= 0.2A (pulsed), V
Internally limited
= 0 mA and
= 1 mA
= 0 mA and
= 1 mA
= 0 mA, duty cycle = 25%
C
CE
−0.3V to +50V
(Note 1)
= 40V
−1V to +50V
= 40V, Emitter
Conditions
750 mA
±
±
V
260˚C
150˚C
1% (Note 9)
1% (Note 9)
IN
50V
40V for T
IN
2
= 0
ESD Tolerance (Note 4)
Operating Ratings
Ambient Temperature Range
Junction Temperature Range
LM3578A
J
LM1578A
LM2578A
LM1578A
LM2578A
LM3578A
−25˚C), timing capacitor C
(Note 5)
Typical
−0.13
0.003
550
100
0.5
1.4
0.1
1.0
1.0
0.7
20
60
J
= 25˚C; values in boldface type apply for
1.035/1.050
0.965/0.950 0.950/0.930
LM1578A
(Note 11)
0.01/0.02
(Note 6)
0.85/1.2
1.6/2.1
50/100
Limit
22.4
17.6
5/8
50
T
= 3900 pF, and 25%
1.050/1.070 V (max)
LM2578A/
LM3578A
0.01/0.02
(Note 7)
0.90/1.2
200/250
1.7/2.0
10/13
Limit
−55˚C
−55˚C
−40˚C
24
16
50
−40˚C
0˚C
0˚C
T
T
T
T
kHz
kHz (max)
kHz (min)
%/˚C
mV
V
V (min)
%/V
%/V (max)
µA
%
% (max)
ppm/1000h
V
V (max)
V
V (max)
µA
µA (max)
V
V (min)
A
T
T
J
J
J
A
A
Units
p-p
+125˚C
+150˚C
+125˚C
+125˚C
+85˚C
+70˚C
2 kV