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參數(shù)資料
| 型號： | LM2575-3.3BN |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 52kHz Simple 1A Buck Regulator |
| 中文描述： | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 195K |
| 代理商： | LM2575-3.3BN |
www.ti.com
Internal
Regulator
On/Off
_
+
_
+
1.23-V
Band-Gap
Reference
52-kHz
Oscillator
Reset
Thermal
Shutdown
Current
Limit
FEEDBACK
4
C
IN
+
V
IN
1
Unregulated
DC Input
GND
3
OUTPUT
2
ON/OFF
5
C
OUT
+
D1
L
O
A
D
V
OUT
1-A
Switch
Driver
Fixed-Gain
Error Amp
Comparator
R2
R1
1 k
3.3 V: R2 = 1.7 k
5 V: R2 = 3.1 k
12 V: R2 = 8.84 k
15 V: R2 = 11.3 k
ADJ: R1 = Open, R2 = 0
L1
LM2575-05
7-V to 40-V
Unregulated
DC Input
C
IN
100
μ
F
+
+V
IN
1
3
GND
5
ON/OFF
D1
1N5819
OUTPUT
2
L1
330
μ
H
C
OUT
330
μ
F
+
FEEDBACK
4
5-V
Regulated
Output
1-A Load
L2
20
μ
H
C1
100
μ
F
+
Optional Output Ripple Filter
LM2575
1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
SLVS569D–JANUARY 2005–REVISED JULY 2005
FUNCTIONAL BLOCK DIAGRAM
A.
Pin numbers are for the KTT (TO-263) package.
A.
Pin numbers are for the KTT (TO-263) package.
Figure 1. Typical Application Circuit (Fixed Version)
3
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM257533BT | 制造商:MICREL 功能描述:New |
| LM2575-33IKC | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575-33IKTGR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575-33IKTT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575-33IKTTR | 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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