BL8542B
ABSOLUTE MAXIMUM RATING
Parameters
SW Voltage
EN, FB, OUT Voltage
Juntion to Ambient Thermal Resistance
Maximum Power Dissipation
Operating Temperature Range
Storage Temperature
IR Reflow Lead Temperature and Time
Note:
Exceed these limits to damage to the device.
Exposure to absolute maximum rating conditions may affect device reliability.
Value
-0.3 ~ 6 V
-0.3 ~ 6 V
190
o
C/W
0.45 W
-40 ~ 150
o
C
-55 ~ 150
o
C
260
o
C , 10s
ELECTRICAL CHARACTERISTICS
Test condition: Vin=1.8V, Vout=3.3V, T
A
=25 C, unless otherwise specified.
o
Parameters
Minimum Input Voltage
Startup Voltage
Dropout Voltage, Vout≥2.8V
FB Feedback Voltage
FB Input Current
Output Voltage Range
Quiescent Current at OUT
Shutdown Supply Current at OUT
NMOS Switch On Resistance
PMOS Switch On Resistance
NMOS Switch Current Limit
SW Leakage Current
EN Input Current
EN Input Voltage for
“Low”
EN Input Voltage for
“High”
Condition
Min.
Typ.
0.7
0.85
Max.
1.1
Unit
V
V
V
V
V
FB=OUT
FB=G
Vout=2.5 to 5V
External divider
Vfb=0.7V
EN=G
Isw=100mA
Isw=100mA
1
Vout=5.5V, Vsw=0 or 5.5V,
EN=G
2.5
3.3
5
0.6
50
5
25
0.1
0.3
0.7
1
nA
V
uA
uA
ohm
ohm
A
1
1
0.3
0.6
uA
uA
V
V
上海贝岭股½有限公司
www.belling.com.cn
3
BELLING [ SHANGHAI BELLING CO., LTD. ]
