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參數(shù)資料
| 型號： | LM2575T-12-H |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSFM5 |
| 封裝： | HORIZONTAL, STAGGERED, TO-220, 5 PIN |
| 文件頁數(shù)： | 7/19頁 |
| 文件大?。?/td> | 441K |
| 代理商： | LM2575T-12-H |
15
2001 Semtech Corp.
www.semtech.com
LM2575 & LM2576
POWER MANAGEMENT
5
7
5
2
M
L6
7
5
2
M
L
C
N
I
F
7
4F
0
1
1
D
A
3A
7
1
L
H
0
1H
8
6
C
T
U
O
F
0
7
,
2F
0
8
,
6
I
T
U
O
A
m
0
5
2A
m
0
5
5
7
5
2
M
L6
7
5
2
M
L
C
N
I
F
7
4F
0
1
1
D
A
3A
7
1
L
H
0
1H
8
6
C
T
U
O
F
0
7
4F
0
7
,
2
I
T
U
O
A
m
0
1A
m
0
5
7
Inverting buck/boost operation is a different topology of
operation than buck. This difference reduces the output
current capability of the device, in that the inductor must
supply all of the load current during the time the power
switch is off. Maximum output current is approximately:
)
2576
LM
(
V
1
2
5
.
3
I
IN
O
OUT
+
≈
)
2575
LM
(
V
1
2
3
.
1
I
IN
O
OUT
+
≈
Component stress requirements are very similar to the
buck with a few exceptions:
(1) catch diode breakdown V
BR must be greater than
V
IN + |VOUT|
(2) input capacitor is larger due to the increased peak
current during switch turn on. Power dissipation is
approximately:
IN
O
IN
SAT
IN
O
IN
O
D
V
02
.
0
V
1
I
V
P
+
+
+
≈
Please contact factory for additional assistance when
using the buck/boost topology.
Applications Information - Inverting Buck/Boost
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2575T-12T | 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2575T-5.0T | 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2575S-ADJ.TRT | 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5 |
| LM2576S-5.0.TR | 7.5 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5 |
| LM2576T-12-H | 7.5 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSFM5 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2575T12P | 制造商:NATIONAL 功能描述:* |
| LM2575T-12-V | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Voltage-Mode SMPS Controller |
| LM2575T-15 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2575T-15 NOPB | 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 4V to 40V 5-Pin(5+Tab) TO-220 |
| LM2575T15 | 制造商:Texas Instruments 功能描述:SWITCHING REG 1A 15V 2575 TO2205 |
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