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SY8089 参数 Datasheet PDF下载

SY8089图片预览
型号: SY8089
PDF下载: 下载PDF文件 查看货源
内容描述: []
分类和应用:
文件页数/大小: 11 页 / 3058 K
品牌: SILICONIMAGE [ Silicon image ]
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SY8089/8089A  
Electrical Characteristics  
(VIN = 5V, VOUT = 2.5V, L = 2.2µH, COUT = 22µF, TA = 25°C, unless otherwise specified)  
Parameter  
Input Voltage Range  
Quiescent Current  
Symbol  
VIN  
IQ  
Test Conditions  
Min  
2.7  
Typ  
55  
Max  
5.
Unit  
V
µA  
IOUT=0,  
VFB=VREF 105%  
Shutdown Current  
Feedback Reference Voltage  
FB Input Current  
ISHDN  
VREF  
IFB  
RDS(ON),  
P
EN=0  
0.1  
0.588 0.6  
-50  
1
µA  
V
nA  
mΩ  
0.612  
50  
VFB=VIN  
PFET RON  
110  
NFET RON  
RDS(ON),  
N
80  
mΩ  
PFET Current Limit  
EN rising threshold  
EN falling threshold  
Input UVLO threshold  
UVLO hysteresis  
Oscillator Frequency  
Short Circuit Protection Latch Off  
Threshold  
ILIM  
3.5  
1.5  
A
V
V
V
V
MHz  
V
VENH  
VENL  
VUVLO  
VHYS  
FOSC  
VSCP  
0.4  
2.5  
0.2  
1
0.25  
IOUT=mA  
Min ON Time  
Max Duty Cycle  
Soft Start Time  
Output Discharge Switch On  
Resistance  
75  
ns  
%
ms  
100  
1.2  
50  
TSS  
RDISCH  
Thermal Shutdown Temperature  
TSD  
160  
°C  
Note 1: Stresses beyond the “Absolute Maximum Ratings” may cause permanent damage to the device. These are  
stress ratings only. Functionaoperation of the device at these or any other conditions beyond those indicated in the  
operational sections of the specification is not implied. Exposure to absolute maximum rating conditions for  
extended periods may affect device reliability.  
Note 2: Test condition: Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended  
pad on top layer and thermal vias to bottom layer ground plane.  
Note 3: Tdevice is not guaranteed to function outside its operating conditions.  
AN_SY8089/A Rev. 0.9  
Silergy Corp. Confidential- Prepared for Customer Use Only 5  
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