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EV5424-R-00A 数据表(PDF) 38 Page - Monolithic Power Systems

部件名 EV5424-R-00A
功能描述  5V PMIC with Four 4.5A/2.5A/4.5A/2A Buck Converters, 3 LDOs, 1 Load Switch, and Flexible System Settings via I2C and MTP
PDF  44 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

EV5424-R-00A 数据表(HTML) 38 Page - Monolithic Power Systems

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MP5424
– 5V POWER MANAGEMENT IC WITH I2C AND MTP
MP5424 Rev. 1.0
MonolithicPower.com
38
12/6/2021
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
For
ceramic
capacitors,
the
capacitance
dominates the impedance at fSW, and causes the
majority of
∆VOUT. For simplification, ∆VOUT can
be calculated with Equation (7):
OUT
OUT
OUT
2
SW
1
IN
VV
ΔV1
8 f
L
C2
V

=
 −

 

(7)
For tantalum or electrolytic capacitors, the ESR
dominates the impedance at fSW.
For simplification,
∆VOUT be estimated with
Equation (8):
OUT
OUT
OUT
ESR
IN
SW
1
VV
ΔV
1
R
f
L
V

=
 −


(8)
The characteristics of C2 also affect the system
stability.
Table 4 lists the recommended components for
MP5424.
Table 4: Recommended External Components for DC/DC Converters and LDOs
Component
Value
Notes
VIN1 input
capacitor (CIN)
22
μF
0805 size/10V ceramic capacitor
VIN2 CIN
22
μF
0805 size/10V ceramic capacitor
VIN3 CIN
22
μF
0805 size/10V ceramic capacitor
VIN4 CIN
22
μF
0805 size/10V ceramic capacitor
VIN5 CIN
10
μF
0805 size/10V ceramic capacitor
AVIN CIN
0.1
μF
0603 size/10V ceramic capacitor
Buck 1 output
capacitor (COUT)
22
μF x 2
0805 size/10V ceramic capacitor
Buck 1 inductor
1
μH
ISAT > current limit
Buck 2 COUT
22
μF x 2
0805 size/10V ceramic capacitor
Buck 2 inductor
1.5
μH
ISAT > current limit
Buck 3 COUT
22
μF x 2
0805 size/10V ceramic capacitor
Buck 3 inductor
1
μH
ISAT > current limit
Buck 4 COUT
22
μF x 2
0805 size/10V ceramic capacitor
Buck 4 inductor
1.5
μH
ISAT > current limit
LSWI CIN
10
μF
0603 size/6.3V ceramic capacitor
LDO 2 COUT
2.2
μF
0603 size/6.3V ceramic capacitor
LSWO COUT
10
μF
0603 size/6.3V ceramic capacitor
LDO 4 COUT
2.2
μF
0603 size/6.3V ceramic capacitor
LDO 5 COUT
2.2
μF
0603 size/6.3V ceramic capacitor
RSTO pull-up
resistor
100kΩ
0603 or 0402 size film resistor
AVIN series resistor
to VIN1 RSTO pull-
up resistor
4.7
Ω
0603 or 0402 size film resistor



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