參數(shù)資料
型號： LM2575-ADJ
廠商： Motorola, Inc.
英文描述： EASY SWITCHERE⑩ 1.0 A STEP-DOWN VOLTAGE REGULATOR
中文描述： 易SWITCHERE⑩1.0降壓穩(wěn)壓器
文件頁數(shù)： 23/28頁
文件大?。?/td> 400K
代理商： LM2575-ADJ
LM2575
23
MOTOROLA ANALOG IC DEVICE DATA
THE LM2575–ADJ STEP–DOWN VOLTAGE REGULATOR WITH 8.0 V @ 1.0 A OUTPUT POWER
CAPABILITY. TYPICAL APPLICATION WITH THROUGH–HOLE PC BOARD LAYOUT
C1
C2
C3
D1
L1
L2
R1
R2
–
–
–
–
–
–
–
–
100
μ
F, 50 V, Aluminium Electrolytic
330
μ
F, 16 V, Aluminium Electrolytic
100
μ
F, 16 V, Aluminium Electrolytic
1.0 A, 40 V, Schottky Rectifier, 1N5819
330
μ
H, Tech 39: 77 458 BV, Toroid Core, Through–Hole, Pin 3 = Start, Pin 7 = Finish
25
μ
H, TDK: SFT52501, Toroid Core, Through–Hole
1.8 k
10 k
Figure 38. Schematic Diagram of the 8.0 V @ 1.0 V Step–Down Converter Using the LM2575–Adj
(An additional LC filter is included to achieve low output ripple voltage)
Figure 39. PC Board Component Side
Figure 40. PC Board Copper Side
Vref = 1.23 V
R1 is between 1.0 k and 5.0 k
D1
1N5819
L1
330
μ
H
Output
2
R2
10 k
R1
1.8 k
L2
25
μ
H
Regulated
Output Filtered
Vout2 = 8.0 V @1.0 A
Unregulated
DC Input
C2
330
μ
F
/16 V
C3
100
μ
F
/16 V
C1
100
μ
F
/50 V
LM2575–Adj
1
5
3
ON/OFF
Gnd
+Vin
+Vin = +10 V to + 40 V
4
Feedback
Regulated
Output Unfiltered
Vout1 = 8.0 V @1.0 A
V
out
V
ref
1
R2
R1
+Vout1
+Vin
Gndin
C1
L1
C2
D1
J1
U1 LM2575
L2
C3
+Vout2
R2 R1
Gndout
MOTOROLA
NOTE:
Not to scale.
NOTE:
Not to scale
.
References
National Semiconductor LM2575 Data Sheet and Application Note
National Semiconductor LM2595 Data Sheet and Application Note
Marty Brown “Pratical Switching Power Supply Design”, Academic Press, Inc., San Diego 1990
Ray Ridley “High Frequency Magnetics Design”, Ridley Engineering, Inc. 1995
相關(guān)PDF資料
PDF描述
LM2575D2T-12 EASY SWITCHERE⑩ 1.0 A STEP-DOWN VOLTAGE REGULATOR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2575-ADJ/NOPB 制造商:Texas Instruments 功能描述:
LM2575-ATA5R 制造商:FCI 制造商全稱:First Components International 功能描述:1.0A Step - Down Voltage Switching Regulators 1A output current
LM2575-ATA5T 制造商:FCI 制造商全稱:First Components International 功能描述:1.0A Step - Down Voltage Switching Regulators 1A output current
LM2575-ATB5BT 制造商:FCI 制造商全稱:First Components International 功能描述:1.0A Step - Down Voltage Switching Regulators 1A output current
LM2575-ATB5T 制造商:FCI 制造商全稱:First Components International 功能描述:1.0A Step - Down Voltage Switching Regulators 1A output current
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