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LP3303 数据表(PDF) 3 Page - Lowpower Semiconductor inc

部件名 LP3303
功能描述  High Performance, Constant Current Switching Regulator For 9PCS White LED
PDF  7 Pages
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制造商  POWER [Lowpower Semiconductor inc]
网页  http://www.lowpowersemi.com
标志 POWER - Lowpower Semiconductor inc

LP3303 数据表(HTML) 3 Page - Lowpower Semiconductor inc

  LP3303 Datasheet HTML 1Page - Lowpower Semiconductor inc LP3303 Datasheet HTML 2Page - Lowpower Semiconductor inc LP3303 Datasheet HTML 3Page - Lowpower Semiconductor inc LP3303 Datasheet HTML 4Page - Lowpower Semiconductor inc LP3303 Datasheet HTML 5Page - Lowpower Semiconductor inc LP3303 Datasheet HTML 6Page - Lowpower Semiconductor inc LP3303 Datasheet HTML 7Page - Lowpower Semiconductor inc  
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Preliminary Datasheet
LP3303
LP3303 –03 Ver. 1.3 Datasheet
Feb.-2009
Page 3 of 7
Electrical Characteristics
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
System Supply Input
Operation voltage Range
VDD
2.7
16
V
Under Voltage Lock Out
VDD
2.5
V
Supply Current
IDD
FB=0V, Switch
1
2.5
mA
Shut Down Current
IDD
VEN < 0.4V
0.1
1
uA
Line Regulation
VIN : 3.0~4.3V
3
%
Oscillator
Operation Frequency
FOSC
0.9
1.0
1.2
MHz
Maximum Duty Cycle
90
%
Dimming Frequency
100
10k
Hz
Feedback Voltage
LP3303
191
200
210
mV
MOSFET
On Resistance of MOSFET
RDS(ON)
0.5
Ω
Protection
OVP Threshold
VOVP
29
V
OVP Sink Current
5
μ
A
OCP
750
mA
Shut Down Voltage
VEN
0.4
V
Enable Voltage
VEN
1.5
V



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