參數(shù)資料
型號: LM2575T-3.3
廠商: MOTOROLA INC
元件分類: 穩(wěn)壓器
英文描述: 3.2 A SWITCHING REGULATOR, 52 kHz SWITCHING FREQ-MAX, PSFM5
封裝: 314D-03
文件頁數(shù): 15/28頁
文件大小: 380K
代理商: LM2575T-3.3
LM2575
22
MOTOROLA ANALOG IC DEVICE DATA
THE LM2575–5.0 STEP–DOWN VOLTAGE REGULATOR WITH 5.0 V @ 1.0 A OUTPUT POWER CAPABILITY.
TYPICAL APPLICATION WITH THROUGH–HOLE PC BOARD LAYOUT
DC–DC Converter
Figure 35. Schematic Diagram of the LM2575–5.0 Step–Down Converter
Figure 36. Printed Circuit Board
Component Side
Figure 37. Printed Circuit Board
Copper Side
D1
1N5819
L1
330
H
Output
2
4
Feedback
Unregulated
DC Input
+Vin = +7.0 V to +40 V
Cout
330
F
/16 V
C1
100
F
/50 V
LM2575–5.0
1
5
3ON/OFF
Gnd
+Vin
J1
Regulated Output
+Vout1 = 5.0 V @ 1.0 A
Gndin
Gndout
C1
100
F, 50 V, Aluminium Electrolytic
C2
330
F, 16 V, Aluminium Electrolytic
D1
1.0 A, 40 V, Schottky Rectifier, 1N5819
L1
330
H, Tech 39: 77 458 BV, Toroid Core, Through–Hole, Pin 3 = Start, Pin 7 = Finish
NOTE:
Not to scale.
NOTE:
Not to scale.
+Vout1
+Vin
Gndin
Gndout
C1
L1
C2
D1
J1
U1 LM2575
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