MP2331H Datasheet | Synchronous Buck Converter





MP2331H PDF File (Datasheet) Download

Part Number MP2331H
Description Synchronous Buck Converter
Manufacture MPS
Total Page 20 Pages
PDF Download Download MP2331H PDF File

Features: MP2331H 24V, 2A, 1.2MHz, Synchronous Buc k Converter DESCRIPTION The MP2331H is a fully integrated, highfrequency, syn chronous, rectified, step-down, switch- mode converter with internal power MOSF ETs. The MP2331H offers a very compact solution that achieves 2A of continuous output current with excellent load and line regulation over a wide input rang e. The MP2331H uses synchronous mode op eration for higher efficiency over the output current load range. Constant-on- time (COT) control operation provides v ery fast transient response, easy loop design, and very tight output regulatio n. Full protection features include sho rt-circuit protection (SCP), over-curre nt protection (OCP), under-voltage prot ection (UVP), and thermal shutdown. The MP2331H requires a minimal number of r eadily available, standard, external co mponents and is available in a space-sa ving SOT583 package. FEATURES  Wide 4.2V to 24V Operating Input Range  110mΩ/45mΩ Low RDS(ON) Internal Power MOSFETs  200µA Low IQ  High.

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MP2331H
24V, 2A, 1.2MHz,
Synchronous Buck Converter
DESCRIPTION
The MP2331H is a fully integrated, high-
frequency, synchronous, rectified, step-down,
switch-mode converter with internal power
MOSFETs. The MP2331H offers a very
compact solution that achieves 2A of
continuous output current with excellent load
and line regulation over a wide input range. The
MP2331H uses synchronous mode operation
for higher efficiency over the output current load
range.
Constant-on-time (COT) control operation
provides very fast transient response, easy loop
design, and very tight output regulation.
Full protection features include short-circuit
protection (SCP), over-current protection (OCP),
under-voltage protection (UVP), and thermal
shutdown.
The MP2331H requires a minimal number of
readily available, standard, external
components and is available in a space-saving
SOT583 package.
FEATURES
Wide 4.2V to 24V Operating Input Range
110mΩ/45Low RDS(ON) Internal Power
MOSFETs
200µA Low IQ
High-Efficiency Synchronous Mode
Operation
Fast Load Transient Response
1.2MHz Switching Frequency
TON Extension
Forced PWM Operation
Programmable Soft-Start Time
Power Good (PG) Indication
Over-Current Protection (OCP) and Hiccup
Pre-Bias Start-Up
Thermal Shutdown
Available in a SOT583 (1.6mmx2.1mm)
Package
APPLICATIONS
Game Consoles
Digital Set-Top Boxes
Flat-Panel Television and Monitors
General Purposes
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”, the MPS logo, and “Simple, Easy Solutions” are
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.
TYPICAL APPLICATION
19V
PG
C1
22µF
PG
MP2331H
C4
6.8nF
SS
R4
20Ω
C3
1µF
L1
2.2µH
R3
20kΩ
3.3V/2A
C2
44 µF
R1
40.2 kΩ
R2
13 kΩ
Efficiency
VOUT = 3.3V, L = 2.2μH, DCR = 11.4mΩ
MP2331H Rev. 1.0
www.MonolithicPower.com
10/18/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
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