MP2249 – 6V, 3A, 1MHZ, SYNCHRONOUS STEP-DOWN CONVERTER
RDERING INFORMATION
Part Number
MP2249DN
MP2249DQT
*
Package
SOIC8E
TQFN10 (3mm x 3mm)
Top Marking
MP2249
AAVY
Free Air Temperature (T
A
)
-40°C to +85°C
*
For Tape and Reel, add suffix -Z (e.g. MP2249DQT–Z).
For RoHS Compliant Packaging, add suffix - LF (e.g. MP2249DQT–LF–Z);
PACKAGE REFERENCE
TQFN10 (3mm x 3mm)
SOIC8E
ABSOLUTE MAXIMUM RATINGS
(1)
PVIN to GND ...............................-0.3V to +6.5V
SW to GND ............................-0.3V to V
IN
+0.3V
FB, EN & PG to GND...................-0.3V to +6.5V
Junction Temperature .............................+150°C
Continuous Power Dissipation (T
A
= +25°C)
(2)
SOIC8E...................................................... 2.5W
TQFN10 (3mmx3mm) ................................ 2.5W
Lead Temperature ..................................+260°C
Storage Temperature .............. -65°C to +150°C
Thermal Resistance
(4)
SOIC8E .................................. 50 ...... 10...
°C/W
TQFN10 (3mmx3mm)............. 50 ...... 12...
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature. T
J
(MAX) the junction-to-
ambient thermal resistance
θ
JA
and the ambient temperature
T
A
. The maximum allowable power dissipation at any ambient
temperature is calculated using: P
D
(MAX)=(T
J
(MAX)-T
A
)/
θ
JA
.
Exceeding the maximum allowable power dissipation will
cause excessive die temperature, and the regulator will go
into thermal shutdown. Internal thermal shutdown circuitry
protects the device from permanent damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
θ
JA
θ
JC
Recommended Operating Conditions
(3)
Supply Voltage V
IN
.............................2.5V to 6V
Output Voltage V
OUT
...........................0.6V to 6V
Operating Junct. Temp. ........... -40°C to +125°C
MP2249 Rev.1.0
11/2/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
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