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參數(shù)資料
| 型號： | LM2575-5.0BUT&R |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封裝： | TO-263, 5 PIN |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 152K |
| 代理商： | LM2575-5.0BUT&R |
Micrel, Inc.
LM2575
May 2009
6
M9999-051209-B
Test Circuits and Layout Guidelines
LM2575
+
100F
+VIN
1
3
GND
5
ON/OFF
2
OU TPU T
4
F E E DBAC K
L1
330H
+
D1
MBR360
C OUT
470F
R2
R1
VOUT
5.00V
7V - 40V
UN RE GUL A TE D
DC INPUT
CIN
L
O
A
D
CIN — 100F, 75V Aluminum Electrolytic
COUT— 470F, 15V Aluminum Electrolytic
D1 — Schottky, MBR360
L1 — 330H, 415-0926 (AIE)
R1 — 1k, 0.01%
R2 — 3.065k, 0.01%
5-pin TO-220 socket—2936 (Loranger Mfg. Co.)
4-pin TO-3 socket—8112-AG7 (Augat Inc.)
LM2575-5.0
+
100F
+VIN
1
3
GND
5
ON/OFF
2
OU TPU T
4
F E E DBAC K
L1
330H
+
D1
MBR360
C OUT
220F
VOUT
5.00V
Note: Pin numbers are for TO-220 Package
7V - 40V
UN RE GUL A TE D
DC INPUT
CIN
CIN — 100F, 75V Aluminum Electrolytic
COUT— 330F, 15V Aluminum Electrolytic
D1 — Schottky,MBR360
L1 — 330H, 415-0926 (AIE)
5-pin TO-220 socket — 2936 (Loranger Mfg. Co.)
4-pin TO-3 socket — 8112-AG7 (Augat Inc.)
L
O
A
D
Figure 1.
As in any switching regulator, layout is very important.
Rapidly switching currents associated with wiring
inductance generate voltage transient switch can cause
problems. For minimal stray inductance and ground
loops, the length of the leads indicated by heavy lines
should be kept as short as possible. Single-point
grounding (as indicated) or ground plane construction
should be used for best results.
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