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MP2235 Datasheet Preview

MP2235 Datasheet

Step-Down Converter

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MP2235
High-Efficiency, 3A, 16V, 800kHz
Synchronous, Step-Down Converter
DESCRIPTION
The MP2235 is a high-frequency, synchronous,
rectified, step-down, switch-mode converter
with built-in power MOSFETs. It offers a very
compact solution to achieve a 3A continuous
output current with excellent load and line
regulation over a wide input supply range. The
MP2235 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 shut down.
The MP2235 requires a minimal number of
readily-available standard external components,
and is available in a space-saving 8-pin
TSOT23 package.
TYPICAL APPLICATION
FEATURES
Wide 4.5V-to-16V Operating Input Range
80mΩ/30mΩ Low RDS(ON) Internal Power
MOSFETs
High-Efficiency Synchronous Mode
Operation
Fixed 800kHz Switching Frequency
Synchronizes from a 300kHz-to-2MHz
External Clock
Power-Save Mode at Light Load
External Soft-Start
OCP Protection 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 Television 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 Quality Assurance. “MPS” and The
Future of Analog IC Technologyare Registered Trademarks of Monolithic
Power Systems, Inc.
MP2235 Rev. 1.0
5/16/2013
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
1




MPS

MP2235 Datasheet Preview

MP2235 Datasheet

Step-Down Converter

No Preview Available !

MP2235 SYNCHRONOUS STEP-DOWN CONVERTER
ORDERING INFORMATION
Part Number*
MP2235GJ
Package
TSOT-23-8
Top Marking
AFL
* For Tape & Reel, add suffix Z (e.g. MP2235GJZ);
PACKAGE REFERENCE
ABSOLUTE MAXIMUM RATINGS (1)
VIN ................................................ -0.3V to 17V
VSW ....................................................................
-0.3V (-5V for <10ns) to 17V (19V for <10ns)
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 x 90%
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 EN pin’s ABS MAX rating, please refer to
Page 9, Enable/SYNC control 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.
MP2235 Rev. 1.0
5/16/2013
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
2


Part Number MP2235
Description Step-Down Converter
Maker MPS
Total Page 21 Pages
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