MPM3805A
6V Input, 0.6A Module,
Synchronous, Step-Down Converter
with Integrated Inductor
AEC-Q100 Qualified
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MPM3805A is an automotive grade, stepdown module converter with built-in power
MOSFETs and an inductor. The module’s
integrated inductor simplifies the power system
design and provides easy and efficient use. The
DC/DC module comes in a small surfacemounted
QFN-12 (2.5mmx3.0mmx0.9mm)
package and achieves 0.6A of peak output
current from a 2.6V to 6V input voltage range
with excellent load and line regulation. The
output voltage can be regulated as low as 0.6V.
Only FB resistors and input and output
capacitors are needed to complete the design.
The constant-on-time control (COT) scheme
provides fast transient response and eases loop
stabilization. Fault condition protection includes
cycle-by-cycle current limiting and thermal
shutdown.
The MPM3805A is ideal for a wide range of
automotive applications, including small ECUs,
camera modules, telematics, and infotainment
systems.
Guaranteed Industrial/Automotive Temp
Wide 2.6V to 6V Operating Input Range
Adjustable Output from 0.6V
Up to 0.6A Peak Output Current
100% Duty Cycle in Dropout
Forced CCM Mode
EN and Power Good for Power Sequencing
Cycle-by-Cycle Over-Current Protection
(OCP)
Short-Circuit Protection (SCP) with Hiccup
Mode
Only Four External Components Required:
Two Ceramic Capacitors, Two FB Divider
Resistors
Available in a QFN-12 (2.5mm x 3.0mm x
0.9mm) Package
Total Solution Size 6mmx3.8mm
Available in AEC-Q100
APPLICATIONS
Automotive ECU
Rear Cameras
E-Call
Telematics
Infotainment Systems
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.
For MPS green status, please visit the MPS website under Quality
Assurance. “MPS” and “The Future of Analog IC Technology” are registered
trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
Efficiency vs. Load
VOUT = 1.2V
CIN
10 F
PG
Enable
VOUT
1.2V
OUT
VIN
VIN
2.5V to 6V
MPM3805A
EN
OUT_S
R1
40k
FB
PGND,
AGND
R2
4
COUT1
10 F
LOAD EFFICIENCY ( % )
100
90
80
70
60
VIN =2.5V
VIN =3.3V
VIN =4V
VIN =5V
VIN =6V
50
40
30
20
0.0
0.1
0.2
0.3
0.4
0.5
LOAD CURRENT ( A )
MPM3805A Rev. 1.01
www.MonolithicPower.com
4/18/2019
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
0.6
1
MPM3805A – 6V, 1.2A PEAK SIMPLE MODULE WITH INTEGRATED INDUCTOR, AEC-Q100 QUALIFIED
ORDERING INFORMATION
Part Number
MPM3805AGQB-AEC1*
MPM3805AGQBE-AEC1
Package
Top Marking
QFN-12 (2.5mmx3.0mmx0.9mm)
See Below
* For Tape & Reel, add suffix –Z (e.g.: MPM3805AGQB-AEC1–Z).
TOP MARKING
(MPM3805AGQB-AEC1)
TOP MARKING
(MPM3805AGQBE-AEC1)
BDZ: Product code of MPM3805AGQB-AEC1
Y: Year code
WW: Week code
LLL: Lot number
BHP: Product code of MPM3805AGQBE-AEC1
Y: Year code
WW: Week code
LLL: Lot number
PACKAGE REFERENCE
TOP VIEW
QFN-12 (2.5mmx3.0mmx0.9mm)
MPM3805A Rev. 1.01
www.MonolithicPower.com
4/18/2019
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
2
MPM3805A – 6V, 1.2A PEAK SIMPLE MODULE WITH INTEGRATED INDUCTOR, AEC-Q100 QUALIFIED
PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE
ABSOLUTE MAXIMUM RATINGS
(1)
Supply voltage (VIN) ..................................... 6.5V
VSW .................................... -0.3V (-5V for
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