MP2224 Datasheet: Synchronous Step-down Converter





MP2224 Datasheet PDF Download

Part Number MP2224
Description Synchronous Step-down Converter
Manufacture MPS
Total Page 19 Pages
PDF Download Download MP2224 Datasheet PDF

Features: MP2224 High-Efficiency, 4A, 18V, 500kHz Synchronous Step-Down Converter DESCRI PTION The MP2224 is a high-efficiency, synchronous, rectified, step-down, swit ch-mode converter with built-in power M OSFETs. It offers a very compact soluti on to achieve a 4A output current with excellent load and line regulation over a wide input supply range. The MP2224 has synchronous mode operation for high er efficiency over the output current l oad range. Current-mode operation provi des fast transient response and eases l oop stabilization. Full protection feat ures include over-current protection an d thermal shutdown. The MP2224 requires a minimal number of readily available, standard, external components and is a vailable in a space-saving 8-pin TSOT23 package. FEATURES  Wide 4.5V to 18 V Operating Input Range  Adjustable Output Voltage as low as 0.6V  Low 7 0mΩ/25mΩ RDS(ON) of Internal Power MO SFETs  High Efficiency up to 97%  Fixed 500kHz Switching Frequency  Synchronizes from a 200kHz to 2MHz Exte.

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MP2224
High-Efficiency, 4A, 18V, 500kHz
Synchronous Step-Down Converter
DESCRIPTION
The MP2224 is a high-efficiency, synchronous,
rectified, step-down, switch-mode converter
with built-in power MOSFETs. It offers a very
compact solution to achieve a 4A output current
with excellent load and line regulation over a
wide input supply range. The MP2224 has
synchronous mode operation for higher
efficiency over the output current load range.
Current-mode operation provides fast transient
response and eases loop stabilization.
Full protection features include over-current
protection and thermal shutdown.
The MP2224 requires a minimal number of
readily available, standard, external
components and is available in a space-saving
8-pin TSOT23 package.
FEATURES
Wide 4.5V to 18V Operating Input Range
Adjustable Output Voltage as low as 0.6V
Low 70mΩ/25RDS(ON) of Internal Power
MOSFETs
High Efficiency up to 97%
Fixed 500kHz Switching Frequency
Synchronizes from a 200kHz to 2MHz
External Clock
2.4ms Internal Soft-Start Time
1% Reference Accuracy at Room
Temperature
Internal Power-Save Mode
OCP with Hiccup Mode
Available in 8-pin TSOT23
APPLICATIONS
Flat-Panel Television and Monitors
Notebook Systems and I/O Power
Digital Set-Top Boxes
Distributed Power Systems
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For
MPS green status, please visit the MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power S ystems, Inc.
TYPICAL APPLICATION
VIN
EN/SYNC
C1
22μF
C5
0.1μF
IN BST
MP2224
EN/SYNC
VCC
SW
AGND
GND
FB
C4
0.1μF
L1
3.3μH
VOUT
3.3V/4A
C2
22μF×2
R1
40.2K
R2
8.87K
MP2224 Rev. 1.0
12/18/2015
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
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