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LP6470T Arkusz danych(PDF) 4 Page - Lowpower Semiconductor inc

Numer części LP6470T
Szczegółowy opis  600KHz, 16V/2A Synchronous Step-down Converter
PDF  10 Pages
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Producent  POWER [Lowpower Semiconductor inc]
Strona internetowa  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP6470T Arkusz danych(HTML) 4 Page - Lowpower Semiconductor inc

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LP6470T-01
Aug.-2017
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 4 of 10
Preliminary Datasheet
LP6470T
Electrical Characteristics
VIN=12V, VEN=5V, TA=25℃, unless otherwise noted
Symbol
Parameter
Condition
Min
Typ
Max
Units
VIN
Input Voltage
3.5
16
V
VOUT
Output Voltage Range
0.766
12
V
IQ
Quiescent Current
VFB=0.85V
450
900
µA
ISHDN
Shutdown Current
VEN=GND
6
µA
ILIM
P-Channel Current Limit
3
A
RDS(ON)H
High-Side Switch On Resistance
100
mΩ
RDS(ON)L
Low-Side Switch On Resistance
80
mΩ
ΔVLine-reg/ΔVIN
Line Regulation
VIN=4.5V to 12V
0.2
%/V
VFB
Feedback Threshold Voltage Accuracy
18V>VIN>4.5V
0.751 0.766 0.781
V
IFB
FB Leakage Current
VFB=1.0V
30
nA
fOSC
Oscillator Frequency
600
KHz
TSD
Over-Temperature Shutdown Threshold
150
℃
THYS
Over-Temperature Shutdown Hysteresis
20
℃
VINOVP
Over Voltage Protection Threshold
18
V
VINOVP-HYS
Over Voltage Protection Hysteresis
1
V
DMAX
Maximal duty cycle
95
%
VEN(L)
Enable Threshold Low
0.4
V
VEN(H)
Enable Threshold High
1.8
V
IEN
Input Low Current
VIN=VEN=5V
4
µA
Note: Output Voltage: VOUT = VFB × ( 1 + R1 / R2 ) Volts;



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