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LP6482S датащи(PDF) 5 Page - Lowpower Semiconductor inc

номер детали LP6482S
подробное описание детали  340KHz, 36V/2.5A Step-down Converter With Soft-Start
PDF  10 Pages
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производитель  POWER [Lowpower Semiconductor inc]
домашняя страница  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP6482S датащи(HTML) 5 Page - Lowpower Semiconductor inc

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LP6482S-02
May.-2013
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 5 of 10
Preliminary Datasheet
LP6482S
Electrical Characteristics
VIN=12V, VEN=5V, TA=25℃, unless otherwise noted
Symbol
Parameter
Condition
Min
Typ
Max
Units
VIN
Input Voltage
4.5
36
V
∆VOUT
Output Voltage Line Regulation
ILOAD=1mA to 2000mA
0.3
0.6
%/V
∆VFB
Reference Voltage Line Regulation
VIN=5V to 30V, VEN=5V
0.25
0.4
%/V
VOUT
Output Voltage Range
0.923
12
V
IQ
Quiescent Current
VIN=12V
15
mA
ISHDN
Shutdown Current
EN=GND
1
µA
ILIM
P-Channel Current Limit
3
A
RDS(ON)_H
High-Side Switch On Resistance
85
mΩ
RDS(ON)_L
Low-Side Switch On Resistance
80
mΩ
ILX_LEAK
LX Leakage Current
VEN=0V, VSW=0 or 5V, VIN=5V
1
µA
VFB
Feedback Threshold Voltage Accuracy
VIN=12V
0.895
0.923
0.951
V
IFB
FB Leakage Current
VOUT=5.0V
30
nA
fOSC
Oscillator Frequency
340
KHz
tS
Startup Time
From Enable to Output Regulation
120
µs
TSD
Over-Temperature Shutdown Threshold
150
℃
THYS
Over-Temperature Shutdown Hysteresis
20
℃
VEN(L)
Enable Threshold Low
0.4
V
VEN(H)
Enable Threshold High
2.5
6
V
IEN
Input Low Current
VIN=12V, VEN=5V
1
µA
Note: Output Voltage: VOUT = VFB × ( 1 + R1 / R2 ) Volts;



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