mEZD71202A Series
4.5V - 24V Input, 2A, DC/DC Power Supply
FEATURES
4.5V to 24V Wide Operating Input
2A Load Current
Hiccup Short-Circuit Protection
Over-/Under-Voltage Protection
Over-Current Protection
Over-Temperature Protection
Open Design Files and BOM
ORDERING INFORMATION
Part Number
MEZD71202A-X
Manufacture Yourself Available
Design Files Available for Manufacture
Input Voltage
(V)
A - F: 4.5 - 24
G: 6.5 - 24
Output Voltage
(V)
1, 1.2, 1.5, 1.8,
2.5, 3.3, 5
Output Current
(A)
2
Output Voltage Options
A = 1.0V
E = 2.5V
B = 1.2V
F = 3.3V
C = 1.5V
G = 5.0V
D = 1.8V
Power Derating
V
IN
= 12V, V
OUT
= 3.3V and 5V
120
Natural Convection
mEZD712xx FAMILY PRODUCTS
Part Number
mEZD71201A-X
mEZD71202A-X
Input Voltage
(V)
4.5 - 24
4.5 - 24
5 - 16
4.5 - 17
Output Voltage
(V)
1, 1.2, 1.5, 1.8,
2.5, 3.3, 5
1, 1.2, 1.5, 1.8,
2.5, 3.3, 5
1, 1.2, 1.5, 1.8,
2.5, 3.3
1.0
Output Current
(A)
1.2
2
3
10
100
Output Power (%)
80
mEZD71203A-X
60
40
20
0
25
45
65
85
105
O
C)
Ambient Temperature (
125
VOUT=3.3V
VOUT=5V
mEZD71210A-X
ELECTRICAL CHARACTERISTICS
Input Voltage Range
Output Voltage Set
Accuracy
Output Voltage Ripple
Line Regulation
Load Regulation
Switching Frequency
Short-Circuit Protection
VOUT=1.0V
VOUT=1.2V
V
IN_MIN
higher than V
OUT
by 1V
4.5 or 6.5 to 24V
±2.5% (Typ.)
Efficiency vs. Load Current
V
IN
= 12V, V
OUT
= 1V - 5V
95
90
85
Efficiency (%)
V
IN
= 12V, V
OUT
= 3.3V, Full Load
V
IN
from MIN to MAX, V
OUT
= 3.3V
I
OUT
from MIN to MAX, V
OUT
= 3.3V
Typical Switching Frequency
Short Output to Ground
33.6mV
±1% (Typ.)
±1% (Typ.)
400kHz
Hiccup Mode
-40 to 85°C
80
75
70
65
60
0
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
Load Current (A)
2
VOUT=1.5V
VOUT=1.8V
VOUT=2.5V
Operating Temperature
Range
Over-Temperature
Protection
Rise Time
Calculated MTBF
OTP
V
OUT
from 0% to 90%
MIL-HDBK-217F
VOUT=3.3V
VOUT=5V
150°C
0.75ms (Typ.)
4185x10
3
hrs
NOTE:
All electrical characteristics are tested under 25°C ambient temperature, V
IN
= 12V unless otherwise noted.
mEZD71202A Rev. 1.1
www.MonolithicPower.com
3/8/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
Preliminary Specifications Subject to Change
© 2017 MPS. All Rights Reserved.
1
mEZD71202A Series
4.5V - 24V Input, 2A, DC/DC Power Supply
DO-IT-YOURSELF SCHEMATIC
C1
BST
SW
VIN
C2
R1
VIN
EN
VCC
L1
C3
VOUT
VOUT
C4
C5
MPDIY71202A
ADD
AGND
PGND
GND
Inside mEZD71202A-X
BILL OF MATERIALS
Item
1
2
3
4
5
6
7
8
Qty
1
1
2
1
1
1
1
1
RefDes
C1
C2
C3, C4
C5
L1
R1
P1
U1
Value
0.22µF
4.7µF
47µF
1µF
3.3µH
499kΩ
3-Pin
MPDIY71202A
Description
Ceramic Cap., 16V, X5R
Ceramic Cap., 50V, X7R
Ceramic Cap., 10V, X5R
Ceramic Cap., 10V, X5R
Idc 4.1A, DCR 38mΩ
Film Res., 5%
3-Pin Male Connector, Right
Angle
Synchronous Step-Down
Converter
Package
0402
1206
0805
0402
5.5x5.2mm
0402
Bulk
QFN-16
Manufacturer
WE
WE
WE
WE
WE
Yageo
TE-
Connectivity
MPS
Manufacturer P/N
885012105017
885012208094
885012107011
885012105012
74437336033
RC0402JR-07499KL
571-3-644457-3
MPDIY71202A
PRODUCT PACKAGE AND DIMENSIONS
Pin
1
2
3
TOP VIEW
BOTTOM VIEW
Designation
VIN
GND
VOUT
Function
Input Voltage
Power Ground
Output Voltage
NOTE:
Contact factory for different sizes of the boards (Quantity >2k).
For more information, Gerber files, and PCB layout, please contact
mEZsupport@monolithicpower.com
SIDE VIEW
mEZD71202A Rev. 1.1
www.MonolithicPower.com
3/8/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
Preliminary Specifications Subject to Change
© 2017 MPS. All Rights Reserved.
2
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