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MPQ4470GL Datasheet(PDF) 3 Page - Monolithic Power Systems

Part # MPQ4470GL
Description  High-Efficiency, Fast-Transient, 5A, 36V Synchronous, Step-Down Converter AEC-Q100 Qualified
PDF  20 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MPQ4470GL Datasheet(HTML) 3 Page - Monolithic Power Systems

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MPQ4470/4470A–HIGH-EFFICIENCY, FAST-TRANSIENT, SYNCHRONOUS, STEP-DOWN CONVERTER, AEC-Q100 QUALIFIED
MPQ4470/4470A Rev. 1.1
www.MonolithicPower.com
3
8/26/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 24V, VEN = 2V, TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TJ = 25°C.
Parameters
Symbol
Condition
Min
Typ
Max
Units
Supply Current (Shutdown)
IIN
VEN = 0V
10
300
nA
Supply Current (Quiescent)
IIN
VFB = 0.95V
500
600
μA
HS Switch On Resistance
HSRDS-ON
40
65
mΩ
LS Switch On Resistance
(5)
LSRDS-ON
20
mΩ
Switch Leakage
SWLKG
VEN = 0V
VSW = 0V or 36V
10
400
nA
Current Limit
ILIMIT
6
8
12
A
One-Shot On Time
tON
VIN=12V, RFREQ=30kΩ
230
280
330
ns
Minimum Off Time
(5)
tOFF
100
ns
Fold-back Off Time
(5)
tFB
ILIM=1(HIGH),
FB>50%VREF
4.8
μs
Fold-back Off Time
(5)
tFB
ILIM=1(HIGH),
FB<50%VREF
16.8
μs
OCP hold-off time
(5)
tOC
ILIM=1(HIGH)
100
μs
VFB
TJ = 25°C
807
815
823
mV
Feedback Voltage
VFB
TJ = -40°C to 125°C
803
827
mV
Feedback Current
IFB
VFB = 815mV
10
50
nA
Soft Start Charging Current
ISS
VSS=0V
6
8.5
11
μA
Power Good Rising Threshold
PGOODVth-Hi
0.87
0.9
0.93
VFB
Power Good Falling Threshold
PGOODVth-Lo
0.82
0.85
0.88
VFB
Power
Good
Threshold
Hysteresis
PGOODVth-Hys
0.05
VFB
Power Good Rising Delay
tPGOOD
500
700
900
μs
EN Rising Threshold
ENVth-Hi
1.1
1.25
1.4
V
EN Falling Threshold
ENVth-Lo
0.73
0.86
0.99
V
EN Threshold Hysteresis
ENVth-Hys
390
mV
EN Input Current
IEN
VEN = 2V
1.5
2
μA
VIN Under-Voltage Lockout
Threshold Rising
INUVVth_R
3.7
4.0
4.3
V
VIN Under-Voltage Lockout
Threshold Falling
INUVVth_F
2.8
3.1
3.4
V
VIN Under-Voltage Lockout
Threshold Hysteresis
INUVHYS
900
mV
VCC Regulator
VCC
ICC=0
4.5
4.85
5.2
V
VCC Load Regulation
ICC=10mA
1
2
%
Vo Over-Voltage Protection
Threshold
(6)
VOVP
1.15
1.25
1.35
VFB
Thermal Shutdown
(5)
TSD
175
°C
Thermal Shutdown Hysteresis
(5)
TSD-HYS
45
°C
Note:
5) Derived from bench characterization, not tested in production.
6) For MPQ4470 only, MPQ4470A has no OVP function.



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