MP1476L Datasheet: Step-Down Converter





MP1476L Step-Down Converter Datasheet

Part Number MP1476L
Description Step-Down Converter
Manufacture MPS
Total Page 19 Pages
PDF Download Download MP1476L Datasheet PDF

Features: MP1476L 3.9V-18V, 2A, 800kHz High-Effici ency, Synchronous, Step-Down Converter In a SOT563 Package DESCRIPTION The MP 1476L is a fully integrated, highfreque ncy, synchronous, rectified, step-down, switch-mode converter with internal po wer MOSFETs. The MP1476L offers a very compact solution that achieves 2A of co ntinuous output current with excellent load and line regulation over a wide in put range. The MP1476L uses synchronous mode operation for higher efficiency o ver the output current-load range. Cons tant-on-time (COT) control operation pr ovides very fast transient response, ve ry tight output regulation, and eases l oop design. Full protection features in clude short-circuit protection (SCP), o ver-current protection (OCP), under-vol tage protection (UVP), and thermal shut down. The MP1476L requires a minimal nu mber of readily available, standard, ex ternal components and is available in a space-saving SOT563 package. TYPICAL A PPLICATION FEATURES  Wide 3.9V to 18V Operating Input Range .

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MP1476L
3.9V-18V, 2A, 800kHz High-Efficiency,
Synchronous, Step-Down Converter
In a SOT563 Package
DESCRIPTION
The MP1476L is a fully integrated, high-
frequency, synchronous, rectified, step-down,
switch-mode converter with internal power
MOSFETs. The MP1476L offers a very
compact solution that achieves 2A of
continuous output current with excellent load
and line regulation over a wide input range. The
MP1476L uses synchronous mode operation
for higher efficiency over the output current-load
range.
Constant-on-time (COT) control operation
provides very fast transient response, very tight
output regulation, and eases loop design.
Full protection features include short-circuit
protection (SCP), over-current protection (OCP),
under-voltage protection (UVP), and thermal
shutdown.
The MP1476L requires a minimal number of
readily available, standard, external
components and is available in a space-saving
SOT563 package.
TYPICAL APPLICATION
FEATURES
Wide 3.9V to 18V Operating Input Range
126mΩ/58mΩ Low RDS(ON) Internal Power
MOSFETs
190μA Low IQ
High-Efficiency Synchronous Mode
Operation
Power-Save Mode (PSM) at Light Load
Fast Load Transient Response
800kHz Switching Frequency
Internal Soft Start (SS)
Over-Current Protection (OCP) and Hiccup
Thermal Shutdown
Output Adjustable from 0.8V
Available in a SOT563 Package
APPLICATIONS
Security Camera
Digital Set-Top Boxes
Flat-Panel Television and Monitors
General Purposes Power Supplies
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.
12V
VIN
C1
22μF
EN
R4
10Ω
VIN BST SW
MP1476L FB
EN GND
C3
1μF
L1
4.7μH
R1
R3 40.2kΩ
47kΩ
R2
13kΩ
3.3V/2A
VOUT
C2
22μF
MP1476L Rev. 1.0
www.MonolithicPower.com
9/12/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
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