MP1482 MPS, MP1482 Datasheet - Page 2

• Manufacturer Part Number: MP1482
• Description: 2a, 18v Synchronous Rectified Step-down Converter
• Manufacturer: MPS

PACKAGE REFERENCE
ABSOLUTE MAXIMUM RATINGS
Supply Voltage V
Switch Node Voltage V
Boost Voltage V
All Other Pins ..................................-0.3V to +6V
Junction Temperature ...............................150°C
Continuous Power Dissipation
SOIC8……………………………………….1.38W
SOIC8E………………………………………2.5W
Lead Temperature ....................................260°C
Storage Temperature .............. -65°C to +150°C
Recommended Operating Conditions
Input Voltage V
Output Voltage V
Operating Junct. Temp (T
MP1482 Rev. 1.2
1/13/2010
Part Number
MP1482DN**
MP1482DS*
GND
SW
BS
IN
IN
BS
1
2
3
4
............................4.75V to 18V
OUT
IN
..........V
TOP VIEW
........................-0.3V to +20V
For RoHS Compliant Packaging, add suffix –LF (eg. MP1482DN–LF–Z)
For RoHS Compliant Packaging, add suffix –LF (eg. MP1482DS–LF–Z)
.....................0.923V to 15V
SOIC8
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
SW
MP1482 – 2A, 18V SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER
J
............................ 21V
SW
)..........-40°C to +85°C
** For Tape & Reel, add suffix –Z (eg. MP1482DN–Z);
*For Tape & Reel, add suffix –Z (e.g. MP1482DS–Z);
– 0.3V to V
8
7
6
5
ORDERING INFORMATION
(T
Package
SS
EN
COMP
FB
SOIC8E
SOIC8
A
= +25°C)
© 2010 MPS. All Rights Reserved.
SW
www.MonolithicPower.com
+ 6V
(3)
(1)
(2)
Thermal Resistance
SOIC8..................................... 90 ...... 45... °C/W
SOIC8E .................................. 50 ...... 10... °C/W
Notes:
1) Exceeding these ratings may damage the device
2) The maximum allowable power dissipation is a function of the
3) The device is not guaranteed to function outside of its
4) Measured on JESD51-7, 4-layer board.
operating conditions.
Top Marking
maximum junction temperature T
ambient thermal resistance θ
T
any
P
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..
MP1482DS
MP1482DN
A
D
. The maximum allowable continuous power dissipation at
(MAX)=(T
CONNECT TO GND
ambient
EXPOSED PAD
ON BACKSIDE
GND
J
(MAX)-T
SW
BS
IN
1
2
3
4
temperature
A
)/
TOP VIEW
SOIC8E
Free Air Temperature (T
θ
(4)
JA
JA
.
, and the ambient temperature
Exceeding
-40°C to +85°C
-40°C to +85°C
J
(MAX), the junction-to-
θ
is
JA
8
7
6
5
calculated
SS
EN
COMP
FB
the
θ
JC
maximum
A
by
)
2