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MP2122 Folha de dados(PDF) 1 Page - Monolithic Power Systems

Nome de Peças MP2122
Descrição Electrónicos  6V, 2A, Low Quiescent Current Dual, SYNC Buck Regulator
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Fabricante Electrônico  MPS [Monolithic Power Systems]
Página de início  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2122 Folha de dados(HTML) 1 Page - Monolithic Power Systems

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MP2122
6V, 2A, Low Quiescent Current
Dual, SYNC Buck Regulator
MP2122 Rev. 1.02
www.MonolithicPower.com
1
6/12/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP2122 is an internally-compensated,
1MHz fixed-frequency, dual PWM, synchronous,
step-down regulator. The MP2122 operates
from a 2.7V-to-6V input, generates an output
voltage as low as 0.608V, and has a 45µA
quiescent current that makes it ideal for
powering portable equipment that runs on a
single cell lithium-ion (Li+) battery.
The MP2122 integrates dual 80mΩ high-side
switches and 35mΩ synchronous rectifiers for
high efficiency without an external Schottky
diode. Peak-current mode control and internal
compensation limits the minimum number of
readily-available external components.
Fault-condition protections include cycle-by-cycle
current limiting and thermal shutdown.
The MP2122 is available in an 8-pin TSOT23-8
package.
FEATURES
 Dual 2A-Output Current
 >93% Peak Efficiency
 >80% Light-Load Efficiency
 Wide 2.7V-to-6V Operating Input Range
 80mΩ and 35mΩ Internal Power MOSFET
 1MHz Fixed Switching Frequency
 Adjustable Output from 0.608V to VIN
 180° Phase-Shifted Operation
 100% Duty-Cycle Operation
 45µA Quiescent Current
 Cycle-by-Cycle Over-Current Protection
 Short-Circuit Protection with Hiccup Mode
 Thermal Shutdown
 Available in an 8-pin TSOT23-8 Package
APPLICATIONS
 Small/Handhold Devices
 DVD Drivers
 Portable Instruments
 Smartphones and Feature Phones
 Battery-Powered Devices
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 Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
COUT1
22µF
R1
806kO
IN
EN1
EN2
SW1
SW2
GND
FB1
FB2
CIN
22µF
R2
412kO
R3
806kO
R4
825kO
COUT2
22µF
VIN
5V
VOUT1
1.8V
VOUT2
1.2V
MP2122
L1
1.5uH
L2
1.5uH
EN1
EN2
30
40
50
60
70
80
90
100
0.01
0.1
1
10


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