MP1492 – 2A, 4.2V-16V INPUT, FAST TRANSIENT SYNCHRONOUS STEP-DOWN CONVERTER
ORDERING INFORMATION
Part Number
MP1492DS*
MP1492DS-A**
OCP Protection
Latch-off Mode
Hiccup Mode
Package
SOIC8
Top Marking
MP1492
MP1492-A
Free Air Temperature (T
A
)
-40°C to +85°C
* For Tape & Reel, add suffix –Z (e.g. MP1492DS–Z).
For RoHS Compliant Packaging, add suffix –LF (e.g. MP1492DS–LF–Z)
** For Tape & Reel, add suffix –Z (e.g. MP1492DS-A–Z).
For RoHS Compliant Packaging, add suffix –LF (e.g. MP1492DS-A–LF–Z)
PACKAGE REFERENCE
SOIC8
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage V
IN
....................................... 19V
V
SW
........................................-0.3V to V
IN
+ 0.3V
V
BST
...................................................... V
SW
+ 6V
All Other Pins ..................................-0.3V to +6V
Continuous Power Dissipation (T
A
= +25°C)
(2)
SOIC8 ..................................................... 1.39W
Junction Temperature ..............................150°C
Lead Temperature ....................................260°C
Storage Temperature............... -65°C to +150°C
Thermal Resistance
(4)
SOIC8..................................... 90 ...... 45...
°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 continuous power dissipation at
any ambient temperature is calculated by 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
...........................4.2V to 16V
Output Voltage V
OUT
.....................0.805V to 13V
Operating Junction Temp. (T
J
). -40°C to +125°C
MP1492 Rev. 1.1
3/13/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
2
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