LM2575D2T-3.3G ON Semiconductor, LM2575D2T-3.3G Datasheet - Page 22
![IC REG SW 1A 3.3V STEPDWN D2PAK](/photos/37/63/376320/to263-5_sml.jpg)
LM2575D2T-3.3G
Manufacturer Part Number
LM2575D2T-3.3G
Description
IC REG SW 1A 3.3V STEPDWN D2PAK
Manufacturer
ON Semiconductor
Type
Step-Down (Buck)r
Datasheet
1.LM2575T-5G.pdf
(28 pages)
Specifications of LM2575D2T-3.3G
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
3.3V
Current - Output
1A
Frequency - Switching
52kHz
Voltage - Input
4.75 ~ 40 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
D²Pak, TO-263 (5 leads + tab)
Output Voltage
3.3 V
Output Current
1 A
Input Voltage
4.75 V to 40 V
Switching Frequency
52 KHz
Operating Temperature Range
- 40 C to + 125 C
Mounting Style
SMD/SMT
Duty Cycle (max)
98 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM2575D2T-3.3G
Manufacturer:
ON Semiconductor
Quantity:
135
Company:
Part Number:
LM2575D2T-3.3G
Manufacturer:
MICREL
Quantity:
50 210
Part Number:
LM2575D2T-3.3G
Manufacturer:
ON/安森美
Quantity:
20 000
1N5242B
Unregulated
DC Input
+
+V
NOTE: This picture does not show the complete circuit.
15 k
15 k
Figure 32. Undervoltage Lockout Circuit for
R2
Z1
R1
in
100 mF
/50 V
C
in
68 k
R3
Buck−Boost Converter
Q1
2N3904
+V
in
1
3
C
100 mF
LM2575−Adj
+V
in
GND
in
1
Figure 33. Adjustable Power Supply with Low Ripple Voltage
5
80
70
60
50
40
30
LM2575−5.0
Figure 34. D
5
0
ON/OFF
Power Dissipation versus P.C.B. Copper Length
ON/OFF
2
4
Vertically
Output
Mounted
Feedback
Free Air
3
5.0
GND
V
2
V
out
PAK Thermal Resistance and Maximum
th
L, LENGTH OF COPPER (mm)
= -5.0 V
≈ 13 V
http://onsemi.com
D1
1N5819
10
150 mH
Minimum
Size Pad
L1
P
R
22
15
D(max)
qJA
Adjustable Output, Low−Ripple Power Supply
features an adjustable output voltage is shown in Figure 33.
The input voltage ranges from roughly 8.0 V to 40 V. In order
to achieve a 10 or more times reduction of output ripple, an
additional L−C filter is included in this circuit.
for T
A 1.0 A output current capability power supply that
This regulator delivers 1.0 A into 1.2 V to 35 V output.
C
2200 mF
out
A
20
= 50°C
L
2.0 oz. Copper
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
25
L
R2
50 k
R1
1.1 k
30
3.5
3.0
2.5
2.0
1.5
1.0
Optional Output
Ripple Filter
20 mH
100 mF
L2
C1
1.2 V to 35 V @1.0 A
Regulated
Output Voltage