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參數(shù)資料
| 型號： | LM2574 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | SIMPLE SWITCHER⑩ 0.5A Step-Down Voltage Regulator |
| 中文描述： | ⑩0.5A的的SIMPLE SWITCHER降壓穩(wěn)壓器 |
| 文件頁數(shù)： | 21/24頁 |
| 文件大?。?/td> | 397K |
| 代理商： | LM2574 |
LM2574
21
MOTOROLA ANALOG IC DEVICE DATA
D1
1N5819
L1
150
μ
H
Output
7
1
Feedback
R2
50 k
R1
1.1 k
L2
20
μ
H
Output
Voltage
1.2 to 35 V @ 0.5 A
Optional Output
Ripple Filter
40 V Max
Unregulated
DC Input
Cout
1000
μ
F
C1
100
μ
F
Cin
22
μ
F
LM2574–ADJ
5
3
4
ON/OFF
Pwr
Gnd
+Vin
2
Sig
Gnd
Figure 35. 1.2 to 35 V Adjustable 500 mA Power Supply with Low Output Ripple
The LM2574–5 Step–Down Voltage Regulator with 5.0 V @ 0.5 A Output Power Capability.
Typical Application With Through–Hole PC Board Layout
D1
1N5819
L1
330
μ
H
Output
7
1
Feedback
Unregulated
DC Input
+Vin = 7.0 to 40 V
C2
220
μ
F
C1
22
μ
F
LM2574–5
5
3
4
ON/OFF
Pwr
Gnd
+Vin
Regulated Output
+Vout = 5.0 V @ 0.5 A
Gnd
Gnd
C1
C2
D1
L1
–
–
–
–
22
μ
F, 63 V, Aluminium Electrolytic
220
μ
F, 16 V, Aluminium Electrolytic
1.0 A, 40 V, Schottky Rectifier, 1N5819
330
μ
H, RL–1284–330, Renco Electronics
2
Sig
Gnd
Figure 36. Schematic Diagram of the LM2574–5 Step–Down Converter
LM2574–5.0
C1
C2
+
+
U1
L1
D1
Vout
Gnd
Gnd
+Vin
Figure 37. PC Board Layout Component Side
NOTE
: Not to scale.
Figure 38. PC Board Layout Copper Side
NOTE
: Not to scale.
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PDF描述 |
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| LM2574M-3.3LM2574M-5.0 | SIMPLE SWITCHERT 0.5A Step-Down Voltage Regulator(639.73 k) |
| LM2574M-5 | SIMPLE SWITCHERT 0.5A Step-Down Voltage Regulator(639.73 k) |
| LM2574HV | |
| LM2574 | 0.5 A, Adjustable Output Voltage, Step-Down Switching Regulator(0.5A,可調(diào)輸出電壓,降壓型開關(guān)穩(wěn)壓器) |
| LM2575-33IKTGR | 1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2574 3.3V WAF | 制造商:Motorola Inc 功能描述: |
| LM2574/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Easy Switcher? 0.5A Step-Down Voltage Regulator |
| LM2574_05 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:52kHz Simple 0.5A Buck Regulator |
| LM2574_06 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:0.5 A, Adjustable Output Voltage, Step−Down Switching Regulator |
| LM2574-12 | 制造商:Texas Instruments 功能描述: |
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