MP2325
High Efficiency 3A, 24V, 500kHz
Synchronous Step-Down Converter
DESCRIPTION FEATURES
The MP2325 is a high frequency synchronous
Wide 4.5V to 24V Operating Input Range
rectified step-down switch mode converter with
90m/40m Low Rds(on) Internal Power
built in internal power MOSFETs. It offers a
MOSFETs
very compact solution to achieve 3A continuous
Low Quiescent Current
output current over a wide input supply range
High Efficiency Synchronous Mode
with excellent load and line regulation. The
Operation
MP2325 has synchronous mode operation for
Fixed 500kHz Switching Frequency
higher efficiency over output current load range.
Frequency Sync from 200kHz to 2MHz
External Clock
Current mode operation provides fast transient
Power Save Mode at light load
response and eases loop stabilization.
Internal Soft Start
Full protection features include OCP and
Power Good Indicator
thermal shut down.
OCP Protection and Hiccup
The MP2325 requires a minimum number of
Thermal Shutdown
readily available standard external components
Output Adjustable from 0.8V
and is available in a space saving 8-pin
Available in an 8-pin TSOT-23 package
TSOT23 package.
APPLICATIONS
Notebook Systems and I/O Power
Digital Set Top Boxes
Flat Panel Television and Monitors
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
MPS and The Future of Analog IC Technology are registered trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
R4
20
2
5
VIN IN
C4
BST
0.1F
C1
L1 VOUT
22F
MP2325
4.9H 3.3V/3A
3
SW
6
EN/ EN / SYNC
SYNC C2
R1
44F
7
40.2k
VCC
8
FB
C3
R3
Rt
0.1F
33k R2
100k 1
PG
GND
12.7k
4
MP2325 Rev. 1.0 www.MonolithicPower.com 1
12/4/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
2013 MPS. All Rights Reserved. MP2325 24V, 3A SYNC STEP DOWN CONVERTER
ORDERING INFORMATION
Part Number* Package Top Marking
MP2325GJ TSOT23-8 AKE
* For Tape & Reel, add suffix Z (e.g. MP2325GJZ);
PACKAGE REFERENCE
TSOT23-8
(1) (4)
ABSOLUTE MAXIMUM RATINGS Thermal Resistance
JA JC
V ............................................... 0.3V to +28V TSOT23-8....100..55..C/W
IN
V ....... 0.3V (-5V<10ns) to +28V (30V <10ns)
SW
Notes:
V ...................................................... V +6V
BST SW 1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
All Other Pins ................................. -0.3V to +6V
maximum junction temperature T (MAX), the junction-to-
J
(2)
Continuous Power Dissipation (TA=+25C) ...
ambient thermal resistance , and the ambient temperature
JA
TA. The maximum allowable continuous power dissipation at
................................................................ 1.25W
any ambient temperature is calculated by P (MAX) = (T
D J
Junction Temperature .............................. 150C
(MAX)-T )/ . Exceeding the maximum allowable power
A JA
dissipation will cause excessive die temperature, and the
Lead Temperature ................................... 260C
regulator will go into thermal shutdown. Internal thermal
Storage Temperature ................. -65C to 150C
shutdown circuitry protects the device from permanent
(3) damage.
Recommended Operating Conditions
3) The device is not guaranteed to function outside of its
operating conditions.
Supply Voltage V ............................. 4.5 to 24V
IN
4) Measured on JESD51-7, 4-layer PCB.
Output Voltage V ................. 0.8V to V *D
OUT IN MAX
Operating Junction Temp (T ). . -40C to +125C
J
MP2325 Rev. 1.0 www.MonolithicPower.com 2
12/4/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
2013 MPS. All Rights Reserved.