MP2110 Datasheet: 3A Synchronous Step-Down Converter





MP2110 Datasheet PDF Download

Part Number MP2110
Description 3A Synchronous Step-Down Converter
Manufacture MPS
Total Page 15 Pages
PDF Download Download MP2110 Datasheet PDF

Features: The Future of Analog IC Technology MP21 10 3A Synchronous Step-Down Converter w ith Programmable Input Current Limit D ESCRIPTION The MP2110 is a monolithic s tep-down switch mode converter with int egrated input current limit switch. The step-down converter integrates a main switch and a synchronous rectifier for high efficiency without an external Sch ottky diode. The input average current limit can be externally programmed. It is ideal for powering portable equipmen t that is powered by an USB port. The M P2110 can supply 3A of load current fro m a 3.3V to 5.4V continuous input volta ge with excellent load and line regulat ion. The MP2110 input can support up to 12V transient and clamp the current li mit switch output at 5.65V (Typical). T he Constant-On-time (COT) control schem e provides fast transient response high light-load efficiency and easy loop st abilization. Fault condition protection includes cycle-by-cycle current limit and thermal shutdown. The MP2110 is available in a space-saving.

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The Future of Analog IC Technology
MP2110
3A Synchronous Step-Down Converter
with Programmable Input Current Limit
DESCRIPTION
The MP2110 is a monolithic step-down switch
mode converter with integrated input current limit
switch. The step-down converter integrates a
main switch and a synchronous rectifier for high
efficiency without an external Schottky diode.
The input average current limit can be externally
programmed. It is ideal for powering portable
equipment that is powered by an USB port. The
MP2110 can supply 3A of load current from a
3.3V to 5.4V continuous input voltage with
excellent load and line regulation. The MP2110
input can support up to 12V transient and clamp
the current limit switch output at 5.65V (Typical).
The Constant-On-time (COT) control scheme
provides fast transient response high light-load
efficiency and easy loop stabilization. Fault
condition protection includes cycle-by-cycle
current limit and thermal shutdown.
The MP2110 is available in a space-saving
14-pin 3mmx3mm QFN package.
TYPICAL APPLICATION
FEATURES
High Efficiency: Up to 95%
High Current Step-Down Converter
1.5MHz Switching Frequency
70m/50mInternal Power MOSFET
3A Available Load Current
100% Low Dropout Operation
Output Voltage as Low as 0.6V
Input Current Limit Switch
Programmable Current Limit: 0.3-3A
± 10% Current Limit Accuracy when
Current Limit > 1A
Wide Input Voltage Range: 3.3V to 5.4V
12V Input Transient Tolerance
70mInternal MOSFET
OVP Clamp Protection
Independent Enable Pins
External Temperature Sense & Protection
Internal Thermal Fault Protection
Space Saving 3mm x 3mm QFN14 Package
APPLICATIONS
Wireless Modem Data Cards
USB Powered Devices
Cellular and Smart Phones
Portable Instruments
All MPS parts are lead-free and adhere to the RoHS directive.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
ADAM (Analog Digital Adaptive Modulation), AAM (….) are Trademarks of
Monolithic Power Systems, Inc.
C1
10μF
R4
31.6kΩ
RNTC
100k
C2A + C2
330μF 22μF
OFF ON
SYSIN
NTC
REGIN
ENSYS
RSET
OUT
SW
FB
PGND, EXPOSED PAD
ENREG
AGND
RSET
1.2k
ON OFF
L1
1μH
R1
340kΩ
R2
68kΩ
C3
22μF
MP2110 Rev. 1.11
www.MonolithicPower.com
9/26/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
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