MPQ4559 – 1.5A, 2MHz, 55V STEP-DOWN CONVERTER AEC-Q100 QUALIFIED
ORDERING INFORMATION
Part Number
MPQ4559DN*
Package
SOIC8E
Top Marking
MP4559DN
ADD
MPQ4559DQ**
MPQ4559DQ-AEC1
QFN10 (3X3mm)
QFN10 (3X3mm)
ADD
* For Tape & Reel, add suffix –Z (e.g. MPQ4559DN–Z)
For RoHS Compliant Packaging, add suffix –LF (e.g. MPQ4559DN–LF–Z)
* For Tape & Reel, add suffix –Z (e.g. MPQ4559DQ–Z)
For RoHS Compliant Packaging, add suffix –LF (e.g. MPQ4559DQ–LF–Z)
PACKAGE REFERENCE
QFN10
SOIC8 (Exposed Pad)
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage (VIN).................... –0.3V to +60V
Switch Voltage (VSW)............–0.5V to VIN + 0.5V
BST to SW.................................... –0.3V to +5V
All Other Pins................................ –0.3V to +5V
Thermal Resistance (4)
SOIC8 (Exposed Pad) ............50 ......10 ...C/W
QFN10 (3X3mm)………………50……12…C/W
θJA θJC
Notes:
1) Exceeding these ratings may damage the device
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ(MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD(MAX)=(TJ(MAX)-
TA)/ θJA. 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.
Continuous Power Dissipation
(TA = +25°C) (2)
SOIC8E……………………………………….2.5W
QFN10 (3X3mm)…………………………….2.5W
Junction Temperature..............................150C
Lead Temperature ...................................260C
Storage Temperature.............. –65°C to +150C
Recommended Operating Conditions (3)
Supply Voltage VIN .......................... 3.8V to 55V
Output Voltage VOUT........................ 0.8V to 52V
Operating Junct. Temp (TJ)..... –40C to +125C
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7 4-layer board.
MPQ4559 Rev. 1.01
5/24/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
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