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参数资料
| 型号： | LM2575S-5.0TR |
| 元件分类： | 稳压器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | TO-263, 5 PIN |
| 文件页数： | 7/19页 |
| 文件大小： | 441K |
| 代理商： | LM2575S-5.0TR |
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
相关PDF资料 |
PDF描述 |
|---|---|
| LM2576S-12.TRT | 7.5 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5 |
| LM2575T-12-H | 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSFM5 |
| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2575S-5TR | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:1A & 3A Miniconverter Switching Regulators |
| LM2575S-ADJ | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2575S-ADJ NOPB | 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 4V to 40V 6-Pin(5+Tab) TO-263 Rail |
| LM2575S-ADJ | 制造商:Texas Instruments 功能描述:IC SWITCHING REG 1A ADJ SMD 2575 |
| LM2575S-ADJ.TR | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Analog IC |
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