MP2233
High-Efficiency, 3A, 16V, 1.4MHz
Synchronous, Step-Down Converter
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MP2233 is a high-frequency, synchronous,
rectified, step-down switch mode converter with
built in internal power MOSFETs. It offers a
very compact solution to achieve 3A continuous
output current with excellent load and line
regulation over a wide input supply range. The
MP2233 has synchronous mode operation for
higher efficiency over the output current load
range.
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•
•
•
•
•
Current-mode operation provides a fast
transient response and eases loop stabilization.
•
•
•
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Protective
features
include
over-current
protection, thermal shutdown, and external SS
control.
The MP2233 requires a minimal number of
readily-available external components and is
available in a space-saving 8-pin TSOT23
package.
Wide 4.5V-to-16V Operating Input Range
80mΩ/30mΩ Low RDS(ON) Internal Power
MOSFETs
Proprietary Switching-Loss–Reduction
Technique
High-Efficiency Synchronous Mode
Operation
Fixed 1.4MHz Switching Frequency
Can Synchronize to a 300kHz-to-3MHz
External Clock
Externally-Programmable Soft-Start
OCP and Hiccup
Thermal Shutdown
Output Adjustable from 0.8V
Available in an 8-pin TSOT-23 Package
APPLICATIONS
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Notebook Systems and I/O Power
Digital Set-Top Boxes
Flat-Panel Televisions and Monitors
Distributed Power 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
2
VIN
IN
C1
22 F
BST
MP2233
6
EN/
SYNC
7
C3
0.1 F
EN/SYNC
SW
C5
22nF
R3
20
3
95
3.3V/3A
GND
4
90
85
L1
VCC
SS
100
C4
0.1 F
R1
40.2k
C2
22 F
FB
1
5
8
80
75
70
R5
24k
R2
13k
65
60
55
50
0.0
0.5 1.0 1.5 2.0 2.5
OUTPUT CURRENT (A)
MP2233 Rev. 1.01
www.MonolithicPower.com
12/6/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
3.0
1
MP2233 – SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS
ORDERING INFORMATION
Part Number*
MP2233DJ
Package
TSOT-23-8
Top Marking
AEU
For Tape & Reel, add suffix –Z (e.g. MP2233DJ–Z);
For RoHS, compliant packaging, add suffix –LF (e.g. MP2233DJ–LF–Z).
PACKAGE REFERENCE
TOP VIEW
1
IN
2
SW
3
GND
4
MP2233
SS
8
FB
7
VCC
6
EN/SYNC
5
BST
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance
VIN ..................................................-0.3V to 17V
VSW ...-0.3V (-5V for
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