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LP6493 Datasheet(PDF) 4 Page - Lowpower Semiconductor inc

Part # LP6493
Description  30V 3.5A Synchronous Buck Converter
PDF  6 Pages
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Manufacturer  POWER [Lowpower Semiconductor inc]
Direct Link  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP6493 Datasheet(HTML) 4 Page - Lowpower Semiconductor inc

  LP6493 Datasheet HTML 1Page - Lowpower Semiconductor inc LP6493 Datasheet HTML 2Page - Lowpower Semiconductor inc LP6493 Datasheet HTML 3Page - Lowpower Semiconductor inc LP6493 Datasheet HTML 4Page - Lowpower Semiconductor inc LP6493 Datasheet HTML 5Page - Lowpower Semiconductor inc LP6493 Datasheet HTML 6Page - Lowpower Semiconductor inc  
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LP6493-02
Jun.-2017
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 4 of 6
Preliminary Datasheet
LP6493
Electrical Characteristics
VIN=12V，TA=25℃, unless otherwise noted
Parameter
Symbol
Condition
Min
Typ
Max
Units
Supply Current
IQ
No switching, VFB=0.8V
0.73
1
mA
ISW
Switching, Iload=0A
10
20
mA
VIN Under Voltage Lockout
Threshold Rising
VIN_UVLO
VIN rising
6.6
7.3
8
V
VIN Under Voltage Lockout
Threshold Hysteresis
VIN_HYS
1
V
VIN OVP Voltage Lockout
Threshold Rising
VIN_OVP
VIN rising
40
41
42
V
VIN OVP Voltage Lockout
Threshold Hysteresis
VIN_HYS1
2.7
V
Oscillator Frequency
FSW
VFB=0.6V
180
KHz
Maximum Duty Cycle
DMAX
98
%
FB Voltage Reference
VREF
0.588
0.6
0.612
V
OVP Voltage Reference
VOVP
0.706
V
SCP voltage Reference
VREF_SCP
0.395
V
CS Voltage Reference
VCS
LP6493A
48
53
58
mV
LP6493B
58
65
72
mV
Line Compensation Current
IFB
1.5
uA
SCP Frequency
FSW1
61
KHz
Current Limit
ILIMIT
4.7
A
High-Side Switch on Resistance
RDSON-H
58
mΩ
Low-Side Switch on Resistance
RDSON-L
45
mΩ
Thermal Shutdown
TOTP
Temp rising
150
℃
Thermal Shutdown Hysteresis
TOTP_HYS
15
℃
Hiccup Time
tHICCUP
260
ms
Soft-start Time
tSS
2.7
ms



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