MP2499M Datasheet: Step-Down Converter





MP2499M Step-Down Converter Datasheet

Part Number MP2499M
Description Step-Down Converter
Manufacture MPS
Total Page 18 Pages
PDF Download Download MP2499M Datasheet PDF

Features: MP2499M 36V, 3A Max, High-Efficiency, Sy nchronous, Step-Down Converter with Out put Line Drop Compensation DESCRIPTION The MP2499M is a synchronous, rectifie d, stepdown, switch-mode converter with built-in power MOSFETs. The MP2499M of fers a very compact solution that achie ves a maximum of 3A of continuous outpu t current with built-in, output, line d rop compensation. The MP2499M has synch ronous mode operation for high efficien cy over the output current load range. Current-mode operation provides fast tr ansient response and eases loop stabili zation. Full protection features includ e over-current protection (OCP) and the rmal shutdown. The MP2499M requires a m inimal number of readily available, sta ndard, external components and is avail able in a space-saving QFN-13 (2.5mmx3m m) package. TYPICAL APPLICATION FEATUR ES  Wide 5V to 36V Continuous Operat ing Input Range  85mΩ/55mΩ Low RDS (ON) Internal Power MOSFETs  High-Ef ficiency Synchronous Mode Operation  Default 270kHz Switching Frequenc.

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MP2499M
36V, 3A Max, High-Efficiency,
Synchronous, Step-Down Converter
with Output Line Drop Compensation
DESCRIPTION
The MP2499M is a synchronous, rectified, step-
down, switch-mode converter with built-in
power MOSFETs. The MP2499M offers a very
compact solution that achieves a maximum of
3A of continuous output current with built-in,
output, line drop compensation.
The MP2499M has synchronous mode
operation for high efficiency over the output
current load range. Current-mode operation
provides fast transient response and eases loop
stabilization.
Full protection features include over-current
protection (OCP) and thermal shutdown.
The MP2499M requires a minimal number of
readily available, standard, external
components and is available in a space-saving
QFN-13 (2.5mmx3mm) package.
TYPICAL APPLICATION
FEATURES
Wide 5V to 36V Continuous Operating Input
Range
85mΩ/55mΩ Low RDS(ON) Internal Power
MOSFETs
High-Efficiency Synchronous Mode
Operation
Default 270kHz Switching Frequency
Synchronizes to a 200kHz to 2.4MHz
External Clock
Internal Soft Start
Output Line Drop Compensation
Accurate Continuous Output Current Limit
with External Resistor
Over-Current Protection (OCP) and Hiccup
Thermal Shutdown
Output Adjustable from 0.8V
Available in a QFN-13 (2.5mmx3mm)
Package
APPLICATIONS
USB Dedicated Charging Ports (DCP)
Automotive Cigarette Lighter Adapters
USB Chargers
USB PD Applications
All MPS parts are lead-free, halogen-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.
VIN 12V
EN/SYNC
C1
22μF
C3
0.1μF
IN BST
MP2499M
EN/SYNC
SW
VCC
FB
AGND
PGND
ISENSE
R4
20Ω
C4
0.1μF
L1
11μH
R1
82.5kΩ
R2
15.4kΩ
+ C2
100μF
C2A
1μF
VOUT
5V/2.4A
R3
40mΩ
MP2499M Rev 1.0
www.MonolithicPower.com
5/1/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
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