MP2130 Datasheet, PDF (1/12 Pages) Monolithic Power Systems – High Efficiency, 3.5A, 6V, 1.2MHz Synchronous Step-Down Converter in an Ultra–Small QFN12 (2x2mm) Package

The Future of Analog IC Technology
MP2130
High Efficiency, 3.5A, 6V, 1.2MHz
Synchronous Step-Down Converter in an
Ultra–Small QFN12 (2x2mm) Package
DESCRIPTION
The MP2130 is a monolithic step-down switch
mode converter with built-in internal power
MOSFETs. It achieves 3.5A continuous output
current from a 2.7V to 6V input voltage with
excellent load and line regulation. The MP2130 is
ideal for powering portable equipment that runs
from a single cell Lithium-Ion (Li+) Battery. The
output voltage can be regulated as low as 0.6V.
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 MP2130 requires a minimum number of readily
available standard external components and is
available in an ultra-small QFN12 (2x2mm)
package.
The MP2130 is ideal for a wide range of
applications including PDAs, portable instruments,
DVD drives, small handhold and battery–powered
devices.
FEATURES
• Above 95% Peak Efficiency
• Above 80% Light Load Efficiency.
• Wide 2.7V to 6V Operating Input Range
• Output Voltage as Low as 0.6V
• 100% Duty Cycle in Dropout
• 3.5A Output Current
• 50mΩ and 40mΩ Internal Power MOSFET
• 1.2MHz Frequency
• EN and Power Good for Power Sequencing
• Cycle-by-Cycle Over Current Protection
• Auto Discharge at Power-off
• Short Circuit Protection with Hiccup Mode
• Thermal Shutdown
• Stable with Low ESR Output Ceramic
Capacitors
• Available in a QFN12 (2x2mm) Package
APPLICATIONS
• Storage Drives
• Portable/Handheld Devices
• Wireless/Networking Cards
• Low Voltage I/O System Power
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 Trademarks of Monolithic Power Systems,
Inc.
TYPICAL APPLICATION
VIN
5V
C1
22
EN
PG
1
PVIN
10 _VIN
L
SW ^{2,11 1}
6
OUT
MP2130
8
EN
9 _PG
7
FB
NC ⁵
AGND PGND
4
3,12
R1
200k
R2
200k
VOUT
1.2V
C2
10
Efficiency
V_IN=5V
100
V_O=3.3V
95
90 ^VO=2.4V
85
80
V_O=1.8V
V_O=1.2V
75
70
0.01
0.1
1
10
LOAD CURRENT (A)
MP2130 Rev. 1.23
www.MonolithicPower.com
1
11/22/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.