LM2575T-15 National Semiconductor, LM2575T-15 Datasheet - Page 3

• Manufacturer Part Number: LM2575T-15
• Description: Voltage Regulator IC
• Manufacturer: National Semiconductor

Specifications of LM2575T-15

• No. Of Pins: 5
• Output Current: 1A
• Peak Reflow Compatible (260 C): No
• Output Voltage: 15V
• Termination Type: Through Hole
• Supply Voltage Max: 40V
• Leaded Process Compatible: No
• Mounting Type: Through Hole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Electrical Characteristics
I
(1) In the event of an output short or an overload condition, self-protection features lower the oscillator frequency to 18 kHz and the
(2) Output is not connected to diode, inductor, or capacitor. Output is sourcing current.
(3) Feedback is disconnected from output and connected to 0 V.
(4) To force the output transistor off, FEEDBACK is disconnected from output and connected to 12 V.
LOAD
V
I
f
V
I
I
I
I
V
V
I
I
IB
o
CL
L
Q
STBY
IH
IL
OUT
SAT
IH
IL
minimum duty cycle from 5% to 2%. The resulting output voltage drops to 40% of its nominal value, causing the average power
dissipated by the IC to lower.
www.ti.com
= 200 mA, V
Feedback voltage
Efficiency
Feedback bias current
Oscillator frequency
Saturation voltage
Maximum duty cycle
Peak current
Output leakage current
Quiescent current
Standby quiescent current
ON/OFF logic input level
ON/OFF input current
PARAMETER
IN
= 12 V (unless otherwise noted) (see
(1) (2)
(4)
(1)
(3)
V
8 V
0.2 A
V
V
I
V
V
OFF (ON/OFF pin = 5 V)
OFF (V
ON (V
OFF (ON/OFF pin = 5 V)
ON (ON/OFF pin = 0 V)
OUT
OUT
IN
OUT
IN
IN
= 12 V, V
= 40
= 40
1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
= 1 A
= 5 V, I
= 5 V
V
OUT
IN
OUT
I
LOAD
(4)
(4)
TEST CONDITIONS
(2)
= nominal voltage)
, Output = 0 V
, Output = –1 V
40 V, V
= 0 V)
LOAD
OUT
1 A
= 5 V, I
= 0.2 A
OUT
Figure
= 5 V,
LOAD
1)
= 1 A
Full range
Full range
Full range
Full range
Full range
Full range
Full range
25 C
25 C
25 C
25 C
25 C
25 C
25 C
25 C
25 C
25 C
25 C
25 C
25 C
25 C
T
SLVS569E – JANUARY 2005 – REVISED JANUARY 2006
J
1.217
1.193
1.18
MIN
1.7
1.3
2.2
2.4
47
42
93
TYP
1.23
1.23
0.9
2.8
7.5
1.4
1.2
77
50
52
98
50
12
5
0
1.243
1.267
MAX
1.28
100
500
200
1.2
1.4
3.6
0.8
58
63
30
10
30
10
4
2
1
LM2575
UNIT
kHz
mA
mA
nA
%
%
V
V
A
V
A
A
3