EUP2571
Absolute Maximum Ratings
Supply Voltage ,VIN ----------------------------------------------------------------- -0.3V to 6V
LX,OUT ----------------------------------------------------------------------------- -0.3V to 30V
The Other Pins ---------------------------------------------------------------------- -0.3V to 6V
Power dissipation, PD@ TA=25°C
SOT23-6 ------------------------------------------------------------------------------- 0.4W
Package Thermal Resistance
SOT23-6,θJA ------------------------------------------------------------------------- 250°C/W
Maximum Junction Temperature --------------------------------------------------- 125°C
Lead Temperature (Soldering, 10sec.) --------------------------------------------- 260°C
Storage Temperature Range ------------------------------------------------------- -65°C to 150°C
Operating Conditions
Junction Temperature Range --------------------------------------------------- -40°C to 125°C
Supply Voltage , VIN----------------------------------------------------------------- 2.6V to 5.5V
Electrical Characteristics
(VIN =3.6V, VOUT=12V, COUT=1µF, CIN=1µF, RSENSE=12Ω,TA=-40°C to 85°C. Unless otherwise noted.
Typical values are at TA= 25°C)
EUP2571
Symbol
Parameter
Conditions
Unit
Min
--
Typ
--
Max.
6
Supply Voltage
V
V
UVLO Under voltage Lock Out
Maximum Output Voltage
VIN rising or falling
2.2
--
2.4
--
2.6
26
V
ICC1
ICC2
Supply Current
VCC=6V, Continuous Switching
VCC=6V, FB=1.3V, No Switching
VCC=6V, VEN<0.4V
--
0.8
115
0.1
1.5
250
1
mA
µA
µA
Quiescent Current
Shut Down current
--
ICC3
--
Oscillator
Fosc
Operation Frequency
0.8
89
1.1
92
1.3
96
MHz
%
Dmax Maximum Duty Cycle
Reference Voltage
TA=25℃
237
230
250
250
263
270
VFB
Feedback Voltage
mV
TA=-40°C to 85°C
MOSFET
Ω
Rds (on) On resistance of MOSFET
ILX Current Limit
Control and Protection
--
1.05
0.75
1.5
1.2
0.4
A
VEN1
VEN2
IEN
Shut Down Voltage
0.4
--
0.7
0.7
--
V
V
Enable Voltage
1.2
EN Pin Pull Low Current
--
--
0.1
µA
Falling
Rising
24.5
26.1
25.7
27.3
26.5
28.1
OVP
OVP Threshold
V
DS2571 Ver1.1 May. 2007
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