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LP6492FSOF-B 数据表(PDF) 5 Page - Lowpower Semiconductor inc

部件名 LP6492FSOF-B
功能描述  30V 2.4A Synchronous Buck Converter
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

LP6492FSOF-B 数据表(HTML) 5 Page - Lowpower Semiconductor inc

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LP6492-05
Jul.-2018
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 5 of 7
Preliminary Datasheet
LP6492
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
Oscillator Frequency
FSW
160
KHz
Maximum Duty Cycle
DMAX
98
%
FB Voltage Reference
VFB
LP6492
0.588
0.6
0.612
V
Output Voltage Range
VOUT
LP6492F
5
V
OVP Voltage Reference
VREF-OVP
0.706
V
SCP voltage Reference
VREF_SCP
0.395
V
CS Voltage Reference
VCS
LP6492SOF-A
LP6492FSOF-A
48
53
60
mV
LP6492SOF-B
LP6492FSOF-B
58
65
72
mV
Line Compensation Current
IFB
1.5
2
uA
SCP Frequency
FSW1
61
KHz
Current Limit
ILIMIT
4
A
High-Side Switch on Resistance
RDSON-H
78
mΩ
Low-Side Switch on Resistance
RDSON-L
65
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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