MP2276 Datasheet | High-Efficiency Synchronous Step-down Converter





MP2276 PDF File (Datasheet) Download

Part Number MP2276
Description High-Efficiency Synchronous Step-down Converter
Manufacture MPS
Total Page 25 Pages
PDF Download Download MP2276 PDF File

Features: MP2276 8A, 2.7-16V Input, High-Efficien cy Synchronous Step-down Converter wit h Programmable Current Limit and Soft Start Time Selectable Frequency The Fu ture of Analog IC Technology and Mode of Operation DESCRIPTION The MP2276 is a fully integrated, highfrequency, syn chronous, rectified, step-down, switch- mode converter. It offers a very compac t solution that achieves up to 8A of co ntinuous output current with excellent load and line regulation over a wide in put supply range. The MP2276 operates a t high efficiency over a wide output cu rrent load range. The MP2276 uses const ant-on-time (COT) control for fast tran sient response and eased loop stabiliza tion. Output voltage start-up is contro lled by an internal 1.7ms timer, which can be increased by adding a capacitor on SS/TRK. An open-drain power good (PG ) signal indicates when the output is w ithin its nominal voltage range. Full p rotection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage.

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MP2276
8A, 2.7-16V Input, High-Efficiency Synchronous
Step-down Converter with Programmable Current
Limit and Soft Start Time Selectable Frequency
The Future of Analog IC Technology
and Mode of Operation
DESCRIPTION
The MP2276 is a fully integrated, high-
frequency, synchronous, rectified, step-down,
switch-mode converter. It offers a very compact
solution that achieves up to 8A of continuous
output current with excellent load and line
regulation over a wide input supply range. The
MP2276 operates at high efficiency over a wide
output current load range.
The MP2276 uses constant-on-time (COT)
control for fast transient response and eased
loop stabilization.
Output voltage start-up is controlled by an
internal 1.7ms timer, which can be increased by
adding a capacitor on SS/TRK. An open-drain
power good (PG) signal indicates when the
output is within its nominal voltage range.
Full protection features include over-current
protection (OCP), over-voltage protection
(OVP), under-voltage protection (UVP), and
over-temperature protection (OTP).
The MP2276 requires a minimal number of
readily available, standard, external
components and is available in a QFN-14
(2mmx3mm) package.
FEATURES
Wide 2.7V to 16V Input Voltage Range
8A Continuous Output Current
24m/10mLow RDS(ON) Integrated Power
MOSFETs
Adaptive Constant-On-Time (COT) for
Ultrafast Transient Response
Stable with Zero ESR Output Capacitor
Programmable Current Limit
Selectable Forced CCM or Pulse-Skip
Operation at Light Load
Excellent Load Regulation
Programmable Soft-Start Time from 1.7ms
Pre-Bias Start-Up
Selectable 600kHz, 1100kHz, or 2000kHz
Switching Frequency
Hiccup Over-Current Protection (OCP)
Auto-Retry Over-Voltage Protection (OVP)
and Thermal Shutdown
Output Adjustable from 0.8V
Available in a QFN-14 (2mmx3mm)
Package
APPLICATIONS
Digital Set-Top Boxes
Flat-Panel TV and Monitors
Distributed Power Systems
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.
TYPICAL APPLICATION
Efficiency vs. Output Current
VOUT = 1V, L = 1µH (DCR = 4.6m)
100
90
80
70
60
50
40
0.01
Vin=5V
Vin=12V
Vin=16V
0.10 1.00
Output  Current(A)
10.00
MP2276 Rev.1.1
5/30/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
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