MP2393 Datasheet: Synchronous Step-Down Converter





MP2393 Synchronous Step-Down Converter Datasheet

Part Number MP2393
Description Synchronous Step-Down Converter
Manufacture MPS
Total Page 21 Pages
PDF Download Download MP2393 Datasheet PDF

Features: DESCRIPTION The MP2393 is a fully integr ated, highfrequency, synchronous, recti fied, step-down, switch-mode converter with internal power MOSFETs. The MP2393 offers a very compact solution that ac hieves 3A of continuous output current with excellent load and line regulation over a wide input range. The MP2393 us es synchronous mode operation for highe r efficiency over the output current lo ad range. Constant-on-time (COT) contro l operation provides very fast transien t response, easy loop design, and very tight output regulation. Full protectio n features include short-circuit protec tion (SCP), over-current protection (OC P), under-voltage protection (UVP), and thermal shutdown. The MP2393 requires a minimal number of readily available, standard, external components and is av ailable in a space-saving SOT583 (1.6mm x2.1mm) package. MP2393 24V, 3A, 650kH z, Synchronous Step-Down Converter with PG, SS, in 1.6x2.1mm SOT583 Package FE ATURES  Wide 4.2V to 24V Operating Input Range  75mΩ/40mΩ Low.

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DESCRIPTION
The MP2393 is a fully integrated, high-
frequency, synchronous, rectified, step-down,
switch-mode converter with internal power
MOSFETs. The MP2393 offers a very compact
solution that achieves 3A of continuous output
current with excellent load and line regulation
over a wide input range. The MP2393 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 MP2393 requires a minimal number of
readily available, standard, external
components and is available in a space-saving
SOT583 (1.6mmx2.1mm) package.
MP2393
24V, 3A, 650kHz, Synchronous
Step-Down Converter with PG, SS,
in 1.6x2.1mm SOT583 Package
FEATURES
Wide 4.2V to 24V Operating Input Range
75/40Low RDS(ON) Internal Power
MOSFETs
200µA Low IQ
High-Efficiency Synchronous Mode
Operation
Power-Save Mode (PSM) at Light Load
Fast Load Transient Response
650kHz Switching Frequency
Programmable Soft-Start (SS) 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
MP2393
C4
6.8nF
SS
R4
20Ω
C3
1µF
L1
3.3µH
R3
20kΩ
3.3V/3A
C2
44 µF
R1
40.2kΩ
R2
13 kΩ
Efficiency
VOUT = 3.3V, L = 3.3µH, DCR = 9mΩ
100
95
90
85
80
75
70
65
60
0.01
Vin=5V
Vin=12V
Vin=19V
Vin=24V
0.1 1
LOAD CURRENT(A)
10
MP2393 R 1.0
8/29/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
1

                    
                    






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