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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） |
| 文件頁數(shù)： | 2/28頁 |
| 文件大?。?/td> | 363K |
| 代理商： | LM2575 |
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LM2575
http://onsemi.com
2
Figure 1. Block Diagram and Typical Application
7.0 V 40 V
Unregulated
DC Input
L1
330 H
GND
+V
in
1
C
in
100 F
3
ON/OFF
5
Output
2
Feedback
4
D1
1N5819
C
out
330 F
Typical Application
(Fixed Output Voltage Versions)
Representative Block Diagram and Typical Application
Unregulated
DC Input
+V
in
1
C
out
Feedback
4
C
in
L1
D1
R2
R1
1.0 k
Output
2
GND
3
ON/OFF
5
Reset
Latch
Thermal
Shutdown
52 kHz
Oscillator
1.235 V
BandGap
Reference
Freq
Shift
18 kHz
Comparator
Fixed Gain
Error Amplifier
Current
Limit
Driver
1.0 Amp
Switch
ON/OFF
3.1 V Internal
Regulator
Regulated
Output
V
out
Load
Output
Voltage Versions
3.3 V
5.0 V
12 V
15 V
R2
( )
1.7 k
3.1 k
8.84 k
11.3 k
For adjustable version
R1 = open, R2 = 0
LM2575
5.0 V Regulated
Output 1.0 A Load
This device contains 162 active transistors.
ABSOLUTE MAXIMUM RATINGS
(Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.)
Rating
Symbol
Value
Unit
Maximum Supply Voltage
V
in
45
V
ON/OFF Pin Input Voltage
0.3 V
≤
V
≤
+V
in
V
Output Voltage to Ground (SteadyState)
1.0
V
Power Dissipation
Case 314B and 314D (TO220, 5Lead)
Thermal Resistance, JunctiontoAmbient
Thermal Resistance, JunctiontoCase
Case 936A (D
2
PAK)
Thermal Resistance, JunctiontoAmbient (Figure 34)
Thermal Resistance, JunctiontoCase
P
D
R
JA
R
JC
P
D
R
JA
R
JC
T
stg
Internally Limited
65
5.0
Internally Limited
70
5.0
W
°
C/W
°
C/W
W
°
C/W
°
C/W
Storage Temperature Range
65 to +150
°
C
Minimum ESD Rating (Human Body Model: C = 100 pF, R = 1.5 k )
3.0
kV
Lead Temperature (Soldering, 10 s)
260
°
C
Maximum Junction Temperature
T
J
150
°
C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
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| 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 |
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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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