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MP2233 Datasheet Preview

MP2233 Datasheet

Synchronous Step-Down Converter

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The Future of Analog IC Technology
DESCRIPTION
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.
Current-mode operation provides a fast
transient response and eases loop stabilization.
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.
MP2233
High-Efficiency, 3A, 16V, 1.4MHz
Synchronous, Step-Down Converter
FEATURES
Wide 4.5V-to-16V Operating Input Range
80m/30mLow 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
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
VIN
C1
22 F
2 IN
BST 5
R3
MP2233
20
6 EN/SYNC
SW 3
EN/
SYNC
7 VCC
C3
0.1 F
C5
22nF
1 SS
GND
4
FB 8
C4
0.1 F
L1
C2
22 F
3.3V/3A
R1
40.2k
R5
24k R2
13k
100
95
90
85
80
75
70
65
60
55
50
0.0
0.5 1.0 1.5 2.0 2.5
OUTPUT CURRENT (A)
3.0
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.
1




MPS

MP2233 Datasheet Preview

MP2233 Datasheet

Synchronous Step-Down Converter

No Preview Available !

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
SS 1
IN 2
SW 3
GND 4
8 FB
7 VCC
6 EN/SYNC
5 BST
ABSOLUTE MAXIMUM RATINGS (1)
VIN ..................................................-0.3V to 17V
VSW...-0.3V (-5V for <10ns) to 17V (19V for 5ns)
VBST ........................................................ VSW+6V
All Other Pins ................................ -0.3V to 6V(2)
Continuous Power Dissipation (TA = +25°C) (3)
........................................................... 1.25W
Junction Temperature ...............................150°C
Lead Temperature ....................................260°C
Storage Temperature................. -65°C to 150°C
Recommended Operating Conditions (4)
Supply Voltage VIN ...........................4.5V to 16V
Output Voltage VOUT.................... 0.8V to VIN–3V
Operating Junction Temp. (TJ). -40°C to +125°C
Thermal Resistance (5) θJA θJC
TSOT-23-8............................. 100 ..... 55... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) About the details of the EN pin’s ABS MAX rating, please
refer to Page 9, Enable section.
3) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
4) The device is not guaranteed to function outside of its
operating conditions.
5) Measured on JESD51-7, 4-layer PCB.
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.
2


Part Number MP2233
Description Synchronous Step-Down Converter
Maker MPS
Total Page 18 Pages
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