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PL2576-15F5 参数 Datasheet PDF下载

PL2576-15F5图片预览
型号: PL2576-15F5
PDF下载: 下载PDF文件 查看货源
内容描述: SIMPLE SWITCHER 3A降压稳压器 [Simple Switcher 3A Step- Down Voltage Regulator]
分类和应用: 稳压器
文件页数/大小: 10 页 / 224 K
品牌: CYSTEKEC [ CYSTECH ELECTONICS CORP. ]
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Spec. No. : C543F5  
Issued Date : 2004.02.27  
Revised Date :  
CYStech Electronics Corp.  
Page No. : 5/10  
All Output Voltage Versions Electrical Characteristics  
Specifications with standard type face are for TJ=25°C, and those with boldface type apply over full  
operating temperature range. Unless otherwise specified, VIN=12V for the 3.3V, 5.0V, and adjustable versions,  
VIN=25V for the 12V version, and VIN=30V for the 15V version. ILOAD=500mA.  
Symbol  
Parameter  
Conditions  
Typ  
50  
52  
1.4  
Min  
-
Max  
Units  
nA  
kHz  
V
Feedback bias current  
Oscillator frequency  
100/500  
58/63  
1.8/2.0  
Ib  
fO  
VOUT=5V (adjustable version only)  
(Note 8)  
IOUT=3A (Note 4)  
(Note 5)  
47/42  
VSAT Saturation voltage  
-
Maximum duty cycle  
DC  
98  
93  
-
%
A
(ON)  
(Notes 4, 8)  
ICL  
IL  
Current limit  
5.8  
4.2/3.5  
6.9/7.5  
(Notes 6, 7) Output = 0V  
-
-
2
Output leakage current  
Quiescent current  
mA  
mA  
µA  
Output = -1V  
7.5  
-
30  
(Note 6)  
IQ  
5
-
-
10  
Standby quiescent  
ISTBY  
50  
200  
ON/OFF pin=5V (OFF)  
current  
ON/OFF Control  
VIH  
VOUT=0V  
1.4  
1.2  
2.2/2.4  
-
V
V
ON/OFF pin logic  
VIL  
VOUT=Nominal output voltage  
-
1.0/0.8  
input level  
IIH  
12  
0
-
-
30  
10  
µA  
µA  
ON/OFF pin input  
ON/OFF pin=5V (OFF)  
ON/OFF pin=0V (ON)  
current  
IIL  
Note 1 : Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate  
conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed  
specifications and test conditions, see the Electrical Characteristics.  
Note 2 : All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face).  
Note 3 : External components such as the catch diode, inductor, input and output capacitors can affect switching regulator  
system performance. When the PL2576 is used as shown in the figure 2 test circuit, system performance will be as shown in  
system parameters section of Electrical Characteristics.  
Note 4 : Output pin sourcing current. No diode, inductor or capacitor connected to output.  
Note 5 : Feedback pin removed from output and connected to 0V.  
Note 6 : Feedback pin removed from output and connected to +12V for the Adjustable, 3.3V, and 5V versions, and +25V for  
the 12V and 15V versions, to force the output transistor OFF.  
Note 7 : VIN=40V.  
Note 8 : The oscillator frequency reduces to approximately 11 kHz in the event of an output short or an overload which causes  
the regulated output voltage to drop approximately 40% from the nominal output voltage. This self protection feature lowers the  
average power dissipation of the IC by lowering the minimum duty cycle from 5% down to approximately 2%.  
PL2576-XXXF5  
CYStek Product Specification