MPM3822C
2.75 - 6V, 2A, Ultra-Small and
Ultra-Low Noise Power Module
DESCRIPTION
FEATURES
The MPM3822C is a synchronous, step-down,
power module with an integrated inductor. The
MPM3822C achieves 2A of continuous output
current from a 2.75V to 6V input voltage range
with excellent load and line regulation. The
MPM3822C works in forced continuous
conduction mode (CCM) and has a voltage
ripple less than 10mV with one output capacitor,
making it suitable for optical modules, FGPA,
ASIC, and other applications requiring low
ripple noise. The output voltage can be
regulated as low as 0.6V. Only FB resistors,
input capacitors, and output capacitors are
needed to complete the design.
The constant-on-time control (COT) scheme
provides fast transient response, high efficiency,
and easy loop stabilization.
Full protection features include cycle-by-cycle
current limiting and thermal shutdown.
The MPM3822C requires a minimal number of
readily
available,
standard,
external
components and is available in an ultra-small
QFN-18 (2.5mmx3.5mmx1.6mm) package.
Wide 2.75V to 6V Operating Input Range
Adjustable Output from 0.6V
Low Radiated Emissions (EMI) Complies
with EN55022 Class B Standard
Up to 2A Continuous Output Current
100% Duty Cycle in Dropout
Forced Continuous Conduction Mode (CCM)
Enable (EN) and Power Good (PG) for
Power Sequencing
Cycle-by-Cycle Over-Current Protection
(OCP)
Short-Circuit Protection (SCP) with Hiccup
Mode
Only Four External Components Requires
Available in a QFN-18 (2.5mmx3.5mmx
1.6mm) Package
APPLICATIONS
FPGA, ASIC, DSP Power
Optical Modules
LDO Replacements
Power for Portable Products
Storage (SSD/HDD)
Space-Limited Applications
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”, the MPS logo, and “Simple, Easy Solutions” are trademarks of
Monolithic Power Systems, Inc. or its subsidiaries.
TYPICAL APPLICATION
Efficiency vs. Output Current
VIN = 5V
100
EFFICIENCY (%)
80
60
40
Vout=1.2V
Vout=1.8V
Vout=2.5V
Vout=3.3V
20
0
0
0.5
1
1.5
OUTPUT CURRENT (A)
MPM3822C Rev. 1.0
www.MonolithicPower.com
11/30/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
2
1
MPM3822C – 6V, 2A, ULTRA-SMALL STEP-DOWN MODULE
ORDERING INFORMATION
Part Number*
MPM3822CGRH
Package
QFN-18 (2.5mmx3.5mmx1.6mm)
Top Marking
See Below
* For Tape & Reel, add suffix –Z (e.g.: MPM3822CGRH–Z).
TOP MARKING
BFV: Product code of MPM3822CGRH
Y: Year code
WW: Week code
LLL: Lot number
PACKAGE REFERENCE
TOP VIEW
PGND
SW
16
15
AGND 1
FB
2
OUT_S 3
17
DNC
14
IN
13
IN
12
PG
18
DNC
EN
4
11
NC
SW
5
10
OUT
SW
6
9
OUT
SW 7
8
OUT
QFN-18 (2.5mmx3.5mmx1.6mm)
MPM3822C Rev. 1.0
www.MonolithicPower.com
11/30/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
2
MPM3822C – 6V, 2A, ULTRA-SMALL STEP-DOWN MODULE
PIN FUNCTIONS
Pin #
Name
Description
1
AGND
2
FB
3
4
5 - 7, 15
8 - 10
11
OUT_S
EN
SW
OUT
NC
12
PG
13, 14
16
17,18
IN
PGND
DNC
Analog ground for the internal control circuit.
Feedback. Use an external resistor divider from the output to GND tapped to FB to
set the output voltage.
Output voltage sense.
On/off control.
Switch output.
Power output.
No connection. Float NC or connect NC to GND.
Power good indicator. The output of PG is an open drain with an internal pull-up
resistor to IN. PG is pulled up to IN when the FB voltage is within 10% of the
regulation level; otherwise, PG is low.
Supply voltage to internal control circuitry.
Power ground.
No connection. Leave DNC floating.
ABSOLUTE MAXIMUM RATINGS (1)
VSW .................................... -0.3V (-5V for
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