LM2576T-3.3G ON Semiconductor, LM2576T-3.3G Datasheet - Page 4

IC REG SW 3A 3.3V STPDWN TO220-5

LM2576T-3.3G

Manufacturer Part Number
LM2576T-3.3G
Description
IC REG SW 3A 3.3V STPDWN TO220-5
Manufacturer
ON Semiconductor
Type
Step-Down (Buck)r
Datasheet

Specifications of LM2576T-3.3G

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
3.3V
Current - Output
3A
Frequency - Switching
52kHz
Voltage - Input
7 ~ 40 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220-5 (Straight Leads)
Output Voltage
3.3 V
Output Current
3 A
Input Voltage
4.75 V to 40 V
Switching Frequency
52 KHz
Operating Temperature Range
- 40 C to + 125 C
Mounting Style
Through Hole
Duty Cycle (max)
98 %
Primary Input Voltage
12V
No. Of Outputs
1
No. Of Pins
5
Filter Terminals
Through Hole
Frequency
52kHz
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
LM2576T-3.3GOS

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM2576T-3.3G
Manufacturer:
TO-220
Quantity:
20 000
3. The oscillator frequency reduces to approximately 18 kHz in the event of an output short or an overload which causes the regulated output
4. Output (Pin 2) sourcing current. No diode, inductor or capacitor connected to output pin.
5. Feedback (Pin 4) removed from output and connected to 0 V.
6. Feedback (Pin 4) removed from output and connected to +12 V for the Adjustable, 3.3 V, and 5.0 V versions, and +25 V for the 12 V and
7. V
DEVICE PARAMETERS
ELECTRICAL CHARACTERISTICS
for the 12 V version, and V
operating junction temperature range that applies [Note 2], unless otherwise noted.)
ALL OUTPUT VOLTAGE VERSIONS
Feedback Bias Current (V
Oscillator Frequency Note 3
Saturation Voltage (I
Max Duty Cycle (“on”) Note 5
Current Limit (Peak Current Notes 3 and 4)
Output Leakage Current Notes 6 and 7, T
Quiescent Current Note 6
Standby Quiescent Current (ON/OFF Pin = 5.0 V (“off”))
ON/OFF Pin Logic Input Level (Test Circuit Figure 15)
ON/OFF Pin Input Current (Test Circuit Figure 15)
T
T
T
T
T
T
T
T
T
Output = 0 V
Output = −1.0 V
T
T
T
T
V
V
ON/OFF Pin = 5.0 V (“off”), T
ON/OFF Pin = 0 V (“on”), T
voltage to drop approximately 40% from the nominal output voltage. This self protection feature lowers the average dissipation of the IC by
lowering the minimum duty cycle from 5% down to approximately 2%.
15 V versions, to force the output transistor “off”.
T
T
T
T
J
J
J
J
J
J
J
J
J
J
J
J
J
out
out
in
J
J
J
J
= 25°C
= −40 to +125°C
= 25°C
= 0 to +125°C
= −40 to +125°C
= 25°C
= −40 to +125°C
= 25°C
= −40 to +125°C
= 25°C
= −40 to +125°C
= 25°C
= −40 to +125°C
= 40 V.
= 25°C
= −40 to +125°C
= 25°C
= −40 to +125°C
= 0 V
= Nominal Output Voltage
out
= 3.0 A Note 4)
in
out
Characteristics
= 30 V for the 15 V version. I
J
= 5.0 V Adjustable Version Only)
= 25°C
J
= 25°C
(Unless otherwise specified, V
J
= 25°C
http://onsemi.com
Load
= 500 mA. For typical values T
LM2576
4
in
= 12 V for the 3.3 V, 5.0 V, and Adjustable version, V
Symbol
V
I
f
DC
V
I
V
stby
I
osc
I
I
I
CL
I
IH
sat
Q
IL
b
L
IH
IL
Min
J
4.2
3.5
2.2
2.4
47
42
94
= 25°C, for min/max values T
Typ
1.5
5.8
0.8
6.0
5.0
1.4
1.2
25
52
98
80
15
0
Max
100
200
200
400
1.8
2.0
6.9
7.5
2.0
9.0
1.0
0.8
5.0
58
63
20
30
11
J
is the
in
= 25 V
Unit
kHz
mA
mA
nA
mA
mA
%
V
A
V

Related parts for LM2576T-3.3G