MP2143HGD-P Datasheet, PDF (1/15 Pages) MPS Industries, Inc. – 3A, 5.5V, 2.0MHz Synchronous Step Down Switcher

The Future of Analog IC Technology
DESCRIPTION
The MP2143H is a monolithic, step-down,
switch-mode converter with internal power
MOSFETs. It can achieve up to 3A continuous
output current from a 2.5V to 5.5V input voltage
with excellent load and line regulation. The
output voltage can be regulated as low as 0.6V.
Constant-on-time control provides fast transient
response and eases loop stabilization. Fault-
condition protections include cycle-by-cycle
current limiting and thermal shutdown.
The MP2143H is available in small QFN-10
package and requires only a minimal number of
readily-available standard external components.
The MP2143H is ideal for a wide range of
applications including high-performance DSPs,
FPGAs, and portable instruments.
TYPICAL APPLICATION
U1
VIN
VIN
SW
C1
OUT
EN
EN
FB
PG
PG
PGND AGND
L1
R1
R2
MP2143H
3A, 5.5V, 2.0MHz
Synchronous Step Down Switcher
FEATURES
 Wide 2.5V to 5.5V Operating Input Range
 Output Voltage as Low as 0.6V
 100% Duty Cycle in Dropout
 Up to 3A Output Current
 80mΩ and 40mΩ Internal Power MOSFET
Switches
 Default 2.0MHz Switching Frequency
 EN and Power-Good for Power Sequencing
 Cycle-by-Cycle Over-Current Protection
 Auto Discharge at Power Off
 Short-Circuit Protect with Hiccup Mode
 Stable with Low-ESR Output Ceramic
Capacitors
 Available in QFN-10 (2mmx3mm) Package
APPLICATIONS
 Low Voltage I/O System Power
 Handheld/Battery-powered Systems
 Wireless/Networking Cards
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 Systems, Inc.
VOUT
C2
100
90
80
70
60
50
40
30
20
10
00 _{0.5 1 1.5 2 2.5 3 3.5}
MP2143H Rev. 1.02
www.MonolithicPower.com
1
6/30/2016
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