MP2319
3A, 18V, 650kHz, High-Efficiency,
Synchronous, Step-Down Converter
in 8-Pin TSOT23
DESCRIPTION
FEATURES
The MP2319 is
a
fully-integrated, high-
Wide 4.5V to 18V Operating Input Range
3A Output Current
105mΩ/57mΩ Low RDS(ON) Internal Power
MOSFETs
Output Adjustable from 0.8V
EN Shutdown Output Discharge
Internal Soft Start
High-Efficiency Synchronous Mode
Operation
frequency, synchronous, rectified, step-down,
switch-mode converter with internal power
MOSFETs. The MP2319 offers a very compact
solution that achieves 3A of continuous output
current with excellent load and line regulation
over a wide input range. The MP2319 has
synchronous mode operation for higher
efficiency over the output current load range.
Constant-on-time control operation provides a
very fast transient response, easy loop design,
and very tight output regulation.
Fixed 650kHz Switching Frequency
EN and Power Good for Power Sequencing
Over-Current Protection (OCP) and Hiccup
Thermal Shutdown
Auto-Retry Over-Voltage Protection (OVP)
Available in a TSOT23-8 Package
Full protection features include short-circuit
protection (SCP), over-current protection (OCP),
under-voltage protection (UVP), over-voltage
protection (OVP), and thermal shutdown.
APPLICATIONS
The MP2319 requires a minimal number of
Security Cameras
Portable Devices, xDSL Devices
Digital Set-Top Boxes
Flat-Panel Televisions and Monitors
General Purposes
readily
available,
standard,
external
components and is available in a space-saving,
8-pin, TSOT23 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” and “The Future of Analog IC Technology” are
registered trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
R4
10Ω
VIN
4.5V-18V
IN
BST
SW
C4
0.1µ
F
C1
22µF
L1
2.2µH
MP2319
VOUT
3.3V/3A
EN
PG
EN
PG
C2
22µFx2
R1
30k
FB
R3
1K
VCC
R2
9.53k
C3
0.1µF
GND
MP2319 Rev.1.0
6/29/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
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