LP3315 Datasheet, PDF (3/8 Pages) Lowpower Semiconductor inc – 1.2MHzFixed-Frequency PWM Operation

Preliminary Datasheet
LP3315
Absolute Maximum Ratings
Supply Input Voltage---------------------------------------------------------------------------------------------------−0.3V to 6.0V
LX Input Voltage --------------------------------------------------------------------------------------------------------−0.3V to 30V
The Other Pins ----------------------------------------------------------------------------------------------------------−0.3V to 5.5V
Power Dissipation, PD @ TA = 25°C TSOT-23-5/6-----------------------------------------------------------------------0.455W
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------------- 260°C
Operation Temperature Range ---------------------------------------------------------------------------------−40°C to 80°C
Storage Temperature Range ----------------------------------------------------------------------------------------−65°C to 150°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
Feedback Voltage
MOSFET
On Resistance of MOSFET
SW Current Limit
Protection
Shut Down Voltage
Enable on Voltage
Symbol
Test Condition
VDD
VDD
IDD
FB=1.2V, Switch
IDD
VEN < 0.4V
VIN : 3.0~4.3V
FOSC
LP3315
RDS(ON)
ILM
VEN
VEN
Min
Typ.
Max Units
2.7
6
V
2.2
2.4 ^2.6
V
430
550
uA
0.1
1
uA
2
%
1.2
MHz
93
%
1.22
1.25
1.28
V
0.4
Ω
1
A
0.3
V
1.0
V
LP3315– 00 Version1.0 Datasheet Feb.-2012
www.lowpowersemi.com
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