MP2331C
24V, 2A, 650kHz, Synchronous Step-Down
Converter with PG, SS, Forced CCM
in 1.6x2.1mm SOT583 Package
DESCRIPTION
FEATURES
The MP2331C is a fully integrated high-
frequency, synchronous, rectified, step-down,
switch-mode converter with internal power
MOSFETs. The MP2331C offers a very
compact solution that achieves 2A of
continuous output current with excellent load
and line regulation over a wide input range. The
MP2331C uses synchronous mode operation
for higher efficiency over the output current load
range.
Wide 4.2V to 24V Operating Input Range
110mΩ/45mΩ Low RDS(ON) Internal Power
MOSFETs
200µA Low IQ
High-Efficiency Synchronous Mode
Operation
Fast Load Transient Response
650kHz Switching Frequency
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
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.
APPLICATIONS
The MP2331C requires a minimal number of
Game Consoles
readily
available,
standard,
external
Digital Set-Top Boxes
Flat-Panel Television and Monitors
General Purposes
components and is available in a space-saving
SOT583 package
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
Efficiency
VOUT = 3.3V, L = 4.7μH,
DCR = 19.5mΩ
R4
20Ω
100
95
19V
C1
22µF
C3
1µF
L1
4.7
90
µH
3.3V/2A
85
PG
PG
C2
44µF
80
MP2331C
R1
40.2kΩ
75
70
65
60
55
50
R2
R3
20kΩ
Vin=5V
13kΩ
Vin=12V
Vin=19V
Vin=24V
SS
C4
6.8nF
0
0.5
1
1.5
2
LOAD CURRENT (A)
MP2331C Rev. 1.0
9/12/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
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