LP3301 Datasheet, PDF (3/6 Pages) Lowpower Semiconductor inc – 1.5MHz Fixed-Frequency PWM Operation

Preliminary Datasheet
LP3301
Absolute Maximum Ratings
Supply Input Voltage--------------------------------------------------------------------------------------------------−0.3V to 16V
LX Input Voltage -------------------------------------------------------------------------------------------------------−0.3V to 38V
SHDN Input Voltage ---------------------------------------------------------------------------------------------−0.3V to 16V
OVP Voltage------------------------------------------------------------------------------------------------------------−0.3V to 29V
The Other Pins ---------------------------------------------------------------------------------------------------------−0.3V to 5V
Power Dissipation, PD @ TA = 25°C
SOT-23-5 -----------------------------------------------------------------------------------------------------------------------0.455W
Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------------- 260°C
Operation Temperature Range --------------------------------------------------------------------------------------−40°C to 80°C
Junction Temperature Range ----------------------------------------------------------------------------------------0°C to 125°C
Storage Temperature Range ----------------------------------------------------------------------------------------−65°C to 150°C
Operation Junction Temperature Range --------------------------------------------------------------------------0°C to 125°C
Electrical Characteristics
Parameter
System Supply Input
Operation voltage Range
Under Voltage Lock Out
Supply Current
Shut Down Current
Line Regulation
Oscillator
Operation Frequency
Maximum Duty Cycle
Symbol
Test Condition
VDD
VDD
IDD
FB=0V, Switch ON
IDD
VSHDN= 0V ,VFB=0V
VIN : 3.0~4.3V
FOSC
Min
Typ
Max Units
2.6
16
V
--
2.2
V
2
3.5
mA
0.1
1
uA
3
%
1.1
1.5
1.9 ^MHz
85
90
%
Reference Voltage
Feedback Voltage (Note 4)
MOSFET
On Resistance of MOSFET
Protection
OVP Threshold
OVP Sink Current
Switching Current Limit
Shut Down Voltage
Enable Voltage
Soft Star time
LP3301
RDS(ON)
VOVP
VEN
VEN
LP3301-datasheet Dec.-2005
1170 1250 1330 mV
--
0.6
Ω
29
V
5
μA
500
mA
--
0.4
V
1.5
V
550
uS
3 -3