mEZD71201A Series
4.5V - 24V Input, 1A, DC/DC Power Supply
POWER DERATING
DO-IT-YOURSELF SCHEMATIC
VIN=12V, VOUT=3.3Vand 5V
120
C1
VIN
L1
BST
VIN
VOUT
100
80
SW
C2
R1
C3 C4
VOUT
EN
DIY71201-AX
60
VOUT=3.3V
40
VCC
ADD
C5
VOUT=5V
20
AGND PGND
Natural Convection
GND
0
Inside mEZD71201A-X
25
45
65
85
105
125
Ambient Temperature (OC)
BILL OF MATERIALS
Item Qty RefDes Value
Description
Package
Manufacturer
Manufacturer P/N
1
2
1
1
C1
C2
0.22µF
4.7µF
Ceramic Cap., 16V, X5R
Ceramic Cap., 50V, X7R
0402
1206
muRata
muRata
GRM155R61C224KA12D
GRM31CR71H475KA12L
GRM21BD71A226ME44L/
GRM21BR61A226ME51L
3
2
C3, C4
22µF
Ceramic Cap., 10V, X7T/X5R
0805
muRata
4
5
6
7
1
1
1
1
C5
L1*
R1
P1
1µF
4.7µH
499kΩ
3-pin
Ceramic Cap., 10V, X5R
Idc 3.1A, DCR 45.6mΩ
Film Res., 1%
0402
5.5x5x3mm
0402
muRata
Panasonics
Yageo
GRM155R61A105KE01D
ETQP3M4R7KVP
RC0402FR-07499KL
MPS010SRRA-3
3-pin male connector, right angle
Bulk
MYIC
8
1
U1
Synchronous Step-Down Converter FCQFN3x3-16
MPS
DIY71201-AX**
* Or equivalent. ** -X Output voltage options (A: 1.0V, B: 1.2V, C: 1.5V, D: 1.8V, E: 2.5V, F: 3.3V, G: 5.0V)
PRODUCT PACKAGE AND DIMENSIONS
Pin
Designation
Function
1
VIN
Input Voltage
2
3
GND
Power Ground
Output Voltage
VOUT
1
2
3
TOP VIEW
BOTTOM VIEW
NOTE:
Contact factory for different sizes of the boards (Quantity>2k).
SIDE VIEW
For more information, Gerber files, and PCB layout, please contact
mEZsupport@monolithicpower.com
mEZD71201A Rev. 1.5
2/23/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
2
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