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MP2344GJ Datasheet Preview

MP2344GJ Datasheet

Synchronous Step-Down Converter

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DESCRIPTION
The MP2344 is a high-efficiency, synchronous,
rectified, step-down, switch-mode converter
with built-in internal power MOSFETs. It offers a
very compact solution that achieves 2A of
continuous output current with excellent load
and line regulation over a wide input supply
range.
The MP2344’s switching edge is optimized for
low EMI. SW anti-ringing is employed to
address high-frequency radiation EMI issues.
Full protection features include over-current
protection (OCP) and thermal shutdown.
The MP2344 requires a minimal number of
readily available, standard, external
components and is available in a space-saving,
6-pin TSOT23 package.
MP2344
26V, 2A, 600kHz, High-Efficiency,
Synchronous Step-Down Converter
FEATURES
Wide 7.5V to 26V Operating Input Range
2A Load Current
95m/45mLow RDS(ON) Internal Power
MOSFETs
Internal Power-Save Mode for Light Load
600kHz Fixed Switching Frequency at CCM
Optimized for Low EMI
Internal Soft Start
Over-Current Protection (OCP) and Hiccup
Mode
Thermal Shutdown
Output Adjustable from 3.3V
Available in a TSOT23-6 Package
The MPL-AL-5050 Inductor Series Matches
Best Performance
APPLICATIONS
RF-Enabled Devices
Stand-By Power Supply
White Goods
Flat-Panel Television and Monitors
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 registered
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.
TYPICAL APPLICATION
Efficiency vs. Output Current
VOUT = 5V
100
95
90
85
80
75
70
65
60
55
50
0.01
0.1
Vin=12V
Vin=7V
Vin=26V
1
10
LOAD CURRENT (A)
MP2344 Rev. 1.1
www.MonolithicPower.com
1
6/9/2020
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2020 MPS. All Rights Reserved.




MPS

MP2344GJ Datasheet Preview

MP2344GJ Datasheet

Synchronous Step-Down Converter

No Preview Available !

MP2344 – 26V, 2A, SYNCHRONOUS STEP-DOWN CONVERTER
Part Number*
MP2344GJ
ORDERING INFORMATION
Package
TSOT23-6
Top Marking
See Below
* For Tape & Reel, add suffix –Z (e.g. MP2344GJ–Z).
TOP MARKING
MSL Rating
1
BGT: Product code of MP2344GJ
Y: Year code
PACKAGE REFERENCE
TOP VIEW
IN 1
SW 2
GND 3
6 FB
5 VCC
4 BST
TSOT23-6
PIN FUNCTIONS
Pin #
1
2
3
4
5
6
Name
IN
SW
GND
BST
VCC
FB
Description
Supply voltage. The MP2344 operates from a +7.5V to +26V input rail. C1 is needed to
decouple the input rail. Connect using wide PCB traces.
Switch output. Connect using wide PCB traces.
System ground. GND is the reference ground of the regulated output voltage. GND
requires special consideration during PCB layout. Connect GND with copper traces and
vias.
Bootstrap. Connect a capacitor between SW and BST to form a floating supply across the
high-side switch driver.
Internal LDO output. Decouple VCC with a 0.1μF to 0.22μF capacitor. VCC can be
biased by an external 5V output voltage through a diode.
Feedback. An external resistor divider from the output to GND tapped to FB sets the
output voltage. To prevent a current-limit runaway during a short-circuit fault condition, the
frequency foldback comparator lowers the oscillator frequency when the FB voltage is
below 396mV.
MP2344 Rev. 1.1
www.MonolithicPower.com
2
6/9/2020
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2020 MPS. All Rights Reserved.


Part Number MP2344GJ
Description Synchronous Step-Down Converter
Maker MPS
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