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MP3428 Datasheet Preview

MP3428 Datasheet

Synchronous Boost Converter

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MP3428
17A, 600kHz, 20V Wide Input Range,
Synchronous Boost Converter
in a small 3x4mm QFN Package
MPS CONFIDENTIAL AND PROPRIETARY INFORMATIONINTERNAL USE ONLY
DESCRIPTION
The MP3428 is a 600kHz fixed-frequency, high-
efficiency, wide input range, current-mode
boost converter with optional internal or
external current-sensing configuration for high-
integration and high-power applications. With a
current limit above 17A, the MP3428 supports a
wide range of applications including POS,
Thunderbolt, Bluetooth Audio, Power Banks,
and Fuel Cells. The MP3428 features a 10mΩ,
24V power switch and a synchronous gate
driver for high efficiency. An external
compensation pin gives the user flexibility in
setting loop dynamics and obtaining optimal
transient performance at all conditions.
The MP3428 includes under-voltage lockout
(UVLO), switching-current limiting and thermal
shutdown (TSD) to prevent damage in the
event of an output overload.
The MP3428 is available in a low-profile 22-pin
3mmx4mm QFN package.
FEATURES
3V-to-20V Wide Input Range
Integrated 10mΩ Low-Side Power FET
SDR Driver for Synchronous Solution
>17A Switch-Current Limit
Up to 97.5% Efficiency
Optional Internal/External Current-
Sensing Configuration
External Soft-Start and Compensation for
Higher Flexibility
Programmable UVLO and Hysteresis
< 1µA Shutdown Current
Thermal Shutdown at 150
Available in a 3x4mm QFN-22 Package
APPLICATIONS
Thunderbolt Interface
Notebooks and Tablets
Bluetooth Audio
Power Banks
Fuel Cells
POS Systems
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VIN R4
4mΩ
L1 2.2uH
Q1
C6
0.1μF
VOUT= 12V/2.1A
C1
22μF x 2
OFF ON
C3
2.2μF
SENSE
SW BST
SDR
C4
33nF
IN OUT
EN
VDD
SS
MODE
MP3428
FB
COMP
PGND
AGND
R1
300kΩ
R2
34kΩ
C5
6.8nF R3
9.1kΩ
C2
22μF x 3
MP3428 Rev. 1.0
10/10/2019
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
1




MPS

MP3428 Datasheet Preview

MP3428 Datasheet

Synchronous Boost Converter

No Preview Available !

MP3428 17A, 600KHZ, 20V WIDE INPUT RANGE ,SYNCHRONOUS BOOST CONVERTER IN ASMALL 3X4MM QFN PACKAGE
ORDERING INFORMATION
Part Number*
MP3428GL
Package
QFN-22 (3mm×4mm)
Top Marking
See Below
* For Tape & Reel, add suffix Z (e.g. MP3428GLZ);
TOP MARKING
MP: MPS prefix:
Y: year code;
W: week code:
3428: first four digits of the part number;
LLL: lot number;
PACKAGE REFERENCE
TOP VIEW
SW SW PGND PGND
20 19 18 17
BST 1
SDR 2
OUT 3
EN 4
MODE 5
SENSE 6
SW PGND
21 22
16 AGND
15 SS
14 FB
13 COMP
12 VDD
11 IN
7 8 9 10
SW SW PGND PGND
MP3428 Rev. 1.0
10/10/2019
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
2


Part Number MP3428
Description Synchronous Boost Converter
Maker MPS
Total Page 20 Pages
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