MP2188 Datasheet: Synchronous Step-Down Switcher





MP2188 Datasheet PDF Download

Part Number MP2188
Description Synchronous Step-Down Switcher
Manufacture MPS
Total Page 17 Pages
PDF Download Download MP2188 Datasheet PDF

Features: The Future of Analog IC Technology DESCR IPTION The MP2188 is a monolithic, step -down, switchmode dual converter with i nternal power MOSFETs. It can achieve u p to 3A continuous output current from a 2.5V–to-5.5V input voltage with exc ellent load and line regulation. The ou tput voltages of two channels are 1.1V and 1.8V respectively. The constant-on- time control scheme provides fast trans ient response and eases loop stabilizat ion. Fault condition protections includ e cycle-by-cycle current limiting and t hermal shutdown. The MP2188 is availabl e in small 2.2mmx2.6mm QFN-16 package a nd requires only a minimal number of re adily available standard external compo nents. The MP2188 is ideal for a wide r ange of applications including high-per formance DSPs, FPGAs, smartphones, port able instruments, and DVD drivers. TYPI CAL APPLICATION MP2188 Dual 3A, 5.5V, 1.2MHz, COT Synchronous Step Down Switc hers With Auto Output Discharge FEATURE S • Wide 2.5V-to-5.5V Operating Input Range • Fixed Output Voltag.

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The Future of Analog IC Technology
DESCRIPTION
The MP2188 is a monolithic, step-down, switch-
mode dual 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 voltages of two channels are 1.1V
and 1.8V respectively.
The constant-on-time control scheme provides
fast transient response and eases loop
stabilization. Fault condition protections include
cycle-by-cycle current limiting and thermal
shutdown.
The MP2188 is available in small
2.2mmx2.6mm QFN-16 package and requires
only a minimal number of readily available
standard external components.
The MP2188 is ideal for a wide range of
applications including high-performance DSPs,
FPGAs, smartphones, portable instruments,
and DVD drivers.
TYPICAL APPLICATION
MP2188
Dual 3A, 5.5V, 1.2MHz, COT
Synchronous Step Down Switchers
With Auto Output Discharge
FEATURES
Wide 2.5V-to-5.5V Operating Input Range
Fixed Output Voltages: 1.1V & 1.8V
Adjustable Output Voltage from 0.8V by
external FB Resistor
100% Duty Cycle in Dropout
Up to 3A Output Current
Low IQ: 80µA
60mand 30mInternal Power MOSFET
Switches
Default 1.2MHz 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 a 2.2mm x 2.6mm QFN-16
Package
APPLICATIONS
Solid State Drives(SSD)
Low Voltage I/O System Power
Handheld/Battery-powered Systems
Wireless/Networking Cards
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.
Efficiency vs. IOUT
VIN=5V
100
90
80
70
60
50
VOUT1=1.1V
VOUT2=1.8V
40
30
20
10
0
0.01 0.1 1 10
IOUT (A)
MP2188 Rev. 1.01
www.MonolithicPower.com
2/2/2016
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
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