MP2454 Datasheet | Step-down Converter





MP2454 PDF File (Datasheet) Download

Part Number MP2454
Description Step-down Converter
Manufacture MPS
Total Page 19 Pages
PDF Download Download MP2454 PDF File

Features: The Future of Analog IC Technology DESCR IPTION The MP2454 is a frequency-progra mmable (350kHz to 2.3MHz), step-down sw itching regulator with an integrated in ternal high-side, high-voltage power MO SFET. It outputs efficiently up to 0.6A and has current-mode control for fast loop response. The wide 3.3V to 36V inp ut range accommodates a variety of step -down applications in automotiveinput e nvironments. A 3.5μA shutdown mode qui escent current allows for use in batter ypowered applications. Also, the device has a high duty cycle and low drop-out mode for automotive cold-crank conditi ons. The MP2454 achieves high-power con version efficiency over a wide load ran ge by scaling down the switching freque ncy at light-load conditions to reduce both switching and gate driving losses. Frequency foldback prevents inductor c urrent runaway during start-up and shor t circuit. Thermal shutdown provides re liable, fault-tolerant operation. An op en-drain power good (PG) signal indicates when the output is wit.

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The Future of Analog IC Technology
DESCRIPTION
The MP2454 is a frequency-programmable
(350kHz to 2.3MHz), step-down switching
regulator with an integrated internal high-side,
high-voltage power MOSFET. It outputs
efficiently up to 0.6A and has current-mode
control for fast loop response.
The wide 3.3V to 36V input range accommodates a
variety of step-down applications in automotive-
input environments. A 3.5μA shutdown mode
quiescent current allows for use in battery-
powered applications. Also, the device has a high
duty cycle and low drop-out mode for automotive
cold-crank conditions.
The MP2454 achieves high-power conversion
efficiency over a wide load range by scaling
down the switching frequency at light-load
conditions to reduce both switching and gate
driving losses.
Frequency foldback prevents inductor current
runaway during start-up and short circuit.
Thermal shutdown provides reliable, fault-tolerant
operation. An open-drain power good (PG) signal
indicates when the output is within its nominal
voltage.
The MP2454 is available in MSOP-10 EP and
QFN-10 (3mm x 3mm) packages.
TYPICAL APPLICATION
MP2454
36V, 0.6A
Step-Down Converter
FEATURES
60μA Operating Quiescent Current
Wide 3.3V to 36V Operating Input Range
200mInternal Power MOSFET
Up to 2.3MHz Programmable Switching
Frequency
Stable with Ceramic Output Capacitors
Internal Compensation
External Soft Start
> 90% Efficiency
Low Dropout Operation for Cold Crank
3.5μA Low Shutdown Supply Current
Synchronization to External Clock
Power Good Output
Programmable Power Good Delay Time
MSOP-10 EP and QFN-10 (3mm x 3mm)
Packages
APPLICATIONS
High-Voltage Power Conversion
Automotive Systems
Industrial Power Systems
Distributed Power Systems
Battery Powered 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.
Efficiency vs.
100
95
90
85
80
75
70
65
60
55
50
45
40
10
100
1000
MP2454 Rev. 1.01
www.MonolithicPower.com
9/18/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
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