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MAX17543 Folha de dados(PDF) 18 Page - Maxim Integrated Products

Nome de Peças MAX17543
Descrição Electrónicos  4.5V??2V, 2.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation
PDF  19 Pages
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Fabricante Electrônico  MAXIM [Maxim Integrated Products]
Página de início  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX17543 Folha de dados(HTML) 18 Page - Maxim Integrated Products

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Note: All devices operate over the -40ºC to +125ºC tempera-
ture range, unless otherwise noted.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
*EP = Exposed pad.
Package Information
For the latest package outline information and land patterns
(footprints), go to
www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
Chip Information
PROCESS: BiCMOS
Ordering Information
Typical Application Circuits (continued)
PART
PIN-PACKAGE
MAX17543ATP+
20 TQFN 4mm x 4 mm
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND PATTERN
NO.
20 TQFN-EP
T2044+4
21-0139
90-0409
Figure 5 - 3.3V Output, 100kHz Switching Frequency
CF
VIN
VIN
VIN
BST
RT
R8
90.9kΩ
C13
220pF
R5
210kΩ
SYNC
MODE
VCC
SGND
RESETB
SS
FB
PGND
PGND
PGND
LX
LX
LX
EN/UVLO
MAX17543
L1
33µH
C5
0.1µF
C6
15pF
R3
97.6kΩ
R7
1kΩ
C4
100µF
R4
36.5kΩ
VOUT
3.3V, 2.5A
VIN
(4.5V to 42V)
C1
2.2µF
C3
33000pF
C4 = C9 = C14 = JMK325ABJ107MM-T
C2
2.2µF
fSW = 100kHz
C12 = 0.5/ (R3 x fSW)
R7 = R3/100
C6 = (1.4 x 10-6)/fSW
C8
2.2µF
C14
100µF
C9
100µF
C12
47pF
MAX17543
4.5V–42V, 2.5A, High-Efficiency,
Synchronous Step-Down DC-DC Converter
with Internal Compensation
www.maximintegrated.com
Maxim Integrated │ 18



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