MPQ4561 – 1.5A, 2MHz, 55V STEP-DOWN CONVERTER
ORDERING INFORMATION
Part Number
MPQ4561DQ*
MPQ4561DQ-AEC1
Package
QFN10 (3x3mm)
Top Marking
9C
9C
Junction Temperature (T
J
)
–40°C to +125°C
*
For Tape & Reel, add suffix –Z (e.g. MPQ4561DQ-Z)
For RoHS compliant packaging, add suffix –LF (e.g. MPQ4561DQ-LF–Z)
** Available End Sept. 2011
PACKAGE REFERENCE
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage (V
IN
).................... –0.3V to +60V
Switch Voltage (V
SW
)......... –0.5V to (V
IN
+ 0.5V)
BST to SW .................................... –0.3V to +5V
All Other Pins ................................ –0.3V to +5V
(2)
Continuous Power Dissipation (T
A
= 25°C)
............................................................2.5W
Junction Temperature .............................. 150°C
Lead Temperature ................................... 260°C
Storage Temperature .............. –65°C to +150°C
Thermal Resistance
(4)
θ
JA
θ
JC
QFN10 (3x3mm) ..................... 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 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 board.
Recommended Operating Conditions
(3)
Supply Voltage V
IN
.......................... 3.8V to 55V
Output Voltage V
OUT
........................ 0.8V to 52V
Maximum Junction Temp. (T
J
) ............... +125C
MPQ4561 Rev. 1.11
www.MonolithicPower.com
3/29/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
2
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