LM2575-12 Micrel Semiconductor, LM2575-12 Datasheet - Page 4

• Manufacturer Part Number: LM2575-12
• Description: 52kHz Simple 1A Buck Regulator
• Manufacturer: Micrel Semiconductor

LM2575
Electrical Characteristics (continued)
Symbol
DEVICE PARAMETERS, ADJUSTABLE REGULATOR
I
DEVICE PARAMETERS, FIXED and ADJUSTABLE REGULATORS
f
V
DC
I
I
I
I
LM2575
B
O
CL
L
Q
STBY
JA
JA
JC
JA
JA
SAT
Parameter
Feedback Bias Current
Oscillator Frequency
Saturation Voltage
Max Duty Cycle (ON)
Current Limit
Output Leakage Current V
Quiescent Current
Standby Quiescent
Current
Thermal Resistance
Conditions
V
I
(Note 5)
Peak Current, t
(Note 6)
(Note 6)
ON/OFF Pin = 5V (OFF)
T Package, Junction to Ambient (Note 7)
T Package, Junction to Ambient (Note 8)
T Package, Junction to Case
N Package, Junction to Ambient (Note 9)
WM Package, Junction to Amb. (Note 9)
OUT
OUT
IN
= 40V, (Note 6),
= 1A (Note 4)
= 5V
ON
3 s (Note 4)
Output = 0V
Output = –1V
Output = –1V
4
Typ
100
0.9
2.2
7.5
50
52
98
50
65
45
85
5
2
(Note 2)
LM2575
100/500
1.2/1.4
1.7/1.3
3.0/3.2
47/42
58/63
Limit
200
93
30
10
2
August 1999
kHz (max)
kHz (min)
mA(max)
mA(max)
mA(max)
(Limits)
V(max)
A(max)
%(min)
A(min)
A(max)
Units
kHz
C/W
mA
mA
nA
%
V
A
A
Micrel