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MPQ4470GL 데이터시트(PDF) 17 Page - Monolithic Power Systems

부품명 MPQ4470GL
상세설명  High-Efficiency, Fast-Transient, 5A, 36V Synchronous, Step-Down Converter AEC-Q100 Qualified
PDF  20 Pages
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제조업체  MPS [Monolithic Power Systems]
홈페이지  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MPQ4470GL 데이터시트(HTML) 17 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
17
8/26/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
Typical Design Parameter Tables
The following tables include recommended
component values for typical output voltages
(3.3V, 5V) and switching frequencies (300kHz,
500kHz, and 700kHz). Refer to Tables 1 through
3 for design cases without external ramp
compensation, and Tables 4 through 6 for design
cases with external ramp compensation. An
external ramp is not needed when using high-
ESR
capacitors,
such
as
electrolytic
or
POSCAPs. An external ramp is needed when
using low-ESR capacitors, such as ceramic
capacitors. For cases not listed in this datasheet,
an Excel spreadsheet available through your
local
sales
representative
can
calculate
approximate component values.
Table 1—300kHz, 24VIN
VOUT
(V)
L
(μH)
R1
(kΩ)
R2
(kΩ)
RFREQ
(kΩ)
3.3
10
30.1
10
110
5
10
51.1
10
169
Table 2—500kHz, 24VIN
VOUT
(V)
L
(μH)
R1
(kΩ)
R2
(kΩ)
RFREQ
(kΩ)
3.3
10
30.1
10
63.4
5
10
51.1
10
100
Table 3—700kHz, 24VIN
VOUT
(V)
L
(μH)
R1
(kΩ)
R2
(kΩ)
RFREQ
(kΩ)
3.3
10
30.1
10
44.2
5
10
51.1
10
69.8
Table 4—300kHz, 24VIN
VOUT
(V)
L
(μH)
R1
(kΩ)
R2
(kΩ)
R4
(kΩ)
C4
(pF)
RFREQ
(kΩ)
3.3
10
30.9
10
953
390
110
5
10
53.6
10
845
560
169
Table 5—500kHz, 24VIN
VOUT
(V)
L
(μH)
R1
(kΩ)
R2
(kΩ)
R4
(kΩ)
C4
(pF)
RFREQ
(kΩ)
3.3
10
31.6
10
620
390
63.4
5
10
53.6
10
845
390
100
Table 6—700kHz, 24VIN
VOUT
(V)
L
(μH)
R1
(kΩ)
R2
(kΩ)
R4
(kΩ)
C4
(pF)
RFREQ
(kΩ)
3.3
10
31.6
10
560
390
44.2
5
10
54.9
10
620
390
69.8



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