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参数资料
| 型号： | LM2576S-3.3 |
| 元件分类： | 稳压器 |
| 英文描述： | 7.5 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | TO-263, 5 PIN |
| 文件页数： | 12/18页 |
| 文件大小： | 449K |
| 代理商： | LM2576S-3.3 |
1.0 & 3.0 AMP MINICONVERTER
SWITCHING REGULATORS
LM2575
LM2576
1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
April 7, 1998
3
NOTES:
(1) Output sourcing current-resistive load, no inductor or capacitor.
(2) Feedback = V
O + 1.0V.
(3) Feedback = 0V.
(4) Over Temp. (O.T.) = over specified operating junction temperature range.
ELECTRICAL CHARACTERISTICS (cont.)
Test Conditions
Test Limits
Parameter
Symbol
V
IN
I
O
T
J
(4)
Min
Typ
Max
Units
Efficiency/Option
3.3
η
12V
LM2575-1A
77
%
5
LM2576-3A
82
12
15V
88
ADJ V
O = 5V
12V
82
Switching Frequency
F
SX
47
52
58
kHz
O.T.
43
52
62
Saturation Voltage
(1)
V
SAT
LM2575-1A
O.T.
0.9
1.2
V
LM2576-3A
O.T.
0.9
1.4
Max Duty Cycle (On)
(3)
DC
93
98
%
Current Limit
(1)
I
CL
4.2
5.8
6.9
A
Peak Current LM2576
O.T.
3.5
7.5
Peak Current LM2575
I
CL
1.7
2.2
3.0
A
O.T.
1.3
3.2
Output Leakage Current
(2)
Output = 0V
I
L
V
IN RATED
2
mA
Output = -1V
7.5
30
Quiescent Current
(2)
I
Q
510
mA
O.T.
12
Standby Quiescent
I
STBY
50
A
Current (On/Off Pin = 5V)
O.T.
50
500
On/Off Pin Logic
Input Level
V
IH
2.2
1.4
V
OUT = 0V
O.T.
2.4
1.4
V
OUT = Option
V
IL
1.2
1.0
V
O.T.
1.2
0.8
On/Off Input Current
On/Off = 5V (Off)
I
IH
0.5A
12
30
A
On/Off = 0V (On)
I
IL
0.5A
0
10
相关PDF资料 |
PDF描述 |
|---|---|
| LM2576S-5.0 | 7.5 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5 |
| LM2575T-12EP | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, SFM5 |
| LM2575HVM-12EP | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
| LM2575HVSX-5.0EP | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
| LM2575SX-5.0EP | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2576S-5.0 | 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 |
| LM2576S-5.0.TR | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Analog IC |
| LM2576S-5.0/NOPB | 功能描述:直流/直流开关转换器 3A STEP-DOWN VLTG REG 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 |
| LM2576S-5.0/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Converter (DC-DC) / Switching Regu |
| LM2576S-5.0-NOPB | 制造商:TI 制造商全称:Texas Instruments 功能描述:SIMPLE SWITCHER?? 3A Step-Down Voltage Regulator |
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