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參數(shù)資料
| 型號(hào)： | LM2575 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator(1.0A,可調(diào)輸出電壓,降壓型開關(guān)穩(wěn)壓器) |
| 中文描述： | 1.0甲，可調(diào)輸出電壓，降壓型開關(guān)穩(wěn)壓器（1.0安培，可調(diào)輸出電壓，降壓型開關(guān)穩(wěn)壓器） |
| 文件頁(yè)數(shù)： | 21/28頁(yè) |
| 文件大?。?/td> | 363K |
| 代理商： | LM2575 |
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LM2575
http://onsemi.com
21
Figure 32. Undervoltage Lockout Circuit for
BuckBoost Converter
R2
15 k
Z1
1N5242B
R1
15 k
Q1
2N3904
R3
68 k
V
th
≈
13 V
C
in
100 F
LM25755.0
1
3
5
GND
ON/OFF
+V
in
+V
in
V
out
= 5.0 V
NOTE: This picture does not show the complete circuit.
Adjustable Output, LowRipple Power Supply
A 1.0 A output current capability power supply that
features an adjustable output voltage is shown in Figure 33.
This regulator delivers 1.0 A into 1.2 V to 35 V output.
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 LC filter is included in this circuit.
Figure 33. Adjustable Power Supply with Low Ripple Voltage
D1
1N5819
L1
150 H
Output
2
4
Feedback
R2
50 k
R1
1.1 k
L2
20 H
Regulated
Output Voltage
1.2 V to 35 V @1.0 A
Optional Output
Ripple Filter
Unregulated
DC Input
+
C
out
2200 F
C1
100 F
C
in
100 F
/50 V
LM2575Adj
1
5
3
ON/OFF
GND
+V
in
R
θ
,
J
J
°
30
40
50
60
70
80
1.0
1.5
2.0
2.5
3.0
3.5
0
10
20
30
25
15
5.0
L, LENGTH OF COPPER (mm)
Minimum
Size Pad
2.0 oz. Copper
L
L
Free Air
Mounted
Vertically
PD
Figure 34. D
2
PAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
P
D(max)
for T
A
= 50
°
C
R
JA
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2576D2T-12 | EASY SWITCHER 3.0 A STEP.DOWN VOLTAGE REGULATOR |
| LM2576D2T-12 | EASY SWITCHERE⑩ 3.0 A STEP-DOWN VOLTAGE REGULATOR |
| LM2576R | 3.0A, 15V, Step-Down Switching Regulator |
| LM2577S-12 | Pressure Transducer, Series 19 mm, Uncompensated, Pressure Range: 0 psi to 100 psi, Absolute, flush mount, 10 Vdc excitation |
| LM2577N-ADJ | Pressure Transducer, Series 19 mm, Compensated, Pressure Range: 0 psi to 200 psi, Absolute, flush mount with flange, 10 Vdc excitation |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2575/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Easy Switcher? 1.0 A Step-Down Voltage Regulator |
| LM2575_05 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:1.0 A, Adjustable Output Voltage, Step−Down Switching Regulator |
| LM2575_06 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575_09 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:52kHz Simple 1A Buck Regulator |
| LM2575-05IKC | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
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