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LP3382 Datasheet(PDF) 4 Page - Lowpower Semiconductor inc

Part No. LP3382
Description  1.2MHzFixed-Frequency PWM Operation
Download  9 Pages
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Manufacturer  POWER [Lowpower Semiconductor inc]
Direct Link  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP3382 Datasheet(HTML) 4 Page - Lowpower Semiconductor inc

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Preliminary Datasheet
LP3382
LP3382 – 01 Version 1.0 Datasheet
OCT.-2011
www.lowpowersemi.com
Page 4 of 9
Absolute Maximum Ratings
Supply Input Voltage---------------------------------------------------------------------------------------------------−0.3V to 6.0V
SW Input Voltage ---------------------------------------------------------------------------------------------------------−0.3V to 35V
The Other Pins -----------------------------------------------------------------------------------------------------------−0.3V to 5.5V
Power Dissipation, PD @ TA = 25°C SOT-23-6----------------------------------------------------------------------------0.455W
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------------------- 280°C
Operation Temperature Range ------------------------------------------------------------------------------
40°C to 80°C
Storage Temperature Range -----------------------------------------------------------------------------------
65°C to 150°C
ESD Susceptibility
HBM(Human Body Mode) ----------------------------------------------------------------------------------------
4KV
MM((Machine Mode)) --------------------------------------------------------------------------------------------
200V
Electrical Characteristics
Parameter
Symbol
Test Condition
Min
Typ.
Max
Units
System Supply Input
Operation voltage Range
VDD
2.7
6
V
Under Voltage Lock Out
VDD
2.4
V
Supply Current
IDD
FB=0.2V, Switch
90
uA
Shut Down Current
IDD
VEN < 0.4V
0.1
1
uA
Line Regulation
VIN : 3.0~4.3V
2
%
Oscillator
Operation Frequency
FOSC
1.2
MHz
Maximum Duty Cycle
93
%
Feedback Voltage
LP3382
235
250
265
mV
MOSFET
On Resistance of MOSFET
RDS(ON)
0.3
Ω
SW Current Limit
ILM
2
A
Protection
OVP Threshold
VOVP
29
V
OVP Sink Current
5
μ
A
Shut Down Voltage
VEN
0.4
V
Enable on Voltage
VEN
0.7
V
Minimum EN Dimming
Threshold
VFB=0 V
0.7
V
Minimum EN Dimming
Threshold
VFB=250Mv
1.4
V
PWM EN Dimming range
100
200K
Hz


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