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参数资料
| 型号： | LM2576T-5.0-V |
| 厂商： | Semtech Corporation |
| 元件分类： | 数字电源管理 |
| 英文描述： | Voltage-Mode SMPS Controller |
| 中文描述： | 电压模式开关电源控制器 |
| 文件页数： | 7/19页 |
| 文件大小： | 441K |
| 代理商： | LM2576T-5.0-V |
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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2576T5-5.0 | 制造商:Chipswinner 功能描述:52kHz,3.0A,Step-Down Switching Regulator |
| LM2576T-5G | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:3.0 A, 15 V, Stepa??Down Switching Regulator |
| LM2576TADJ | 制造商:Texas Instruments 功能描述:* |
| LM2576T-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 |
| LM2576T-ADJ | 制造商:Texas Instruments 功能描述:SWITCHING REG 3A ADJ 2576 TO2205 |
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