LM2576BU View Datasheet(PDF) - Micrel
Part Name
Description
Manufacturer
LM2576BU Datasheet PDF : 8 Pages
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LM2576
Electrical Characteristics (continued)
Symbol Parameter
Conditions
Typ
DEVICE PARAMETERS, ADJUSTABLE REGULATOR
IB
Feedback Bias Current VOUT = 5V
50
DEVICE PARAMETERS, FIXED and ADJUSTABLE REGULATORS
fO
Oscillator Frequency
52
VSAT
Saturation Voltage
IOUT = 3A (Note 4)
1.4
DC
Max Duty Cycle (ON) (Note 5)
98
ICL
Current Limit
Peak Current, tON ≤ 3µs (Note 4)
5.8
IL
IQ
ISTBY
θJA
θJA
θJC
Output Leakage Current VIN = 40V, (Note 6), Output = 0V
Output = –1V
7.5
(Note 6)
Output = –1V
Quiescent Current
(Note 6)
5
Standby Quiescent
Current
Thermal Resistance
ON/OFF Pin = 5V (OFF)
50
T,U Package, Junction to Ambient (Note 7) 65
T,U Package, Junction to Ambient (Note 8) 45
T,U Package, Junction to Case
2
LM2576
Limit
(Note 2)
100/500
47/42
58/63
1.8/2.0
93
4.2/3.5
6.9/7.5
2
30
10
200
Micrel
Units
(Limits)
nA
kHz
kHz (min)
kHz (max)
V
V(max)
%
%(min)
A
A(min)
A(max)
mA(max)
mA
mA(max)
mA
mA(max)
4
µA
µA(max)
°C/W
October 1998
4-123
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