mEZD72402A Series
4.5V - 36V Input, 2A, DC/DC Power Supply
FEATURES
4.5V to 36V 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
MEZD72402A-X
Manufacture Yourself Available
Design Files Available for Manufacture
Input Voltage
(V)
A - F: 4.5 - 36
G: 6.5 - 36
Output Voltage
(V)
1, 1.2, 1.5, 1.8,
2.5, 3.3, 5
Output Voltage Options
Output Current
(A)
2
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
= 24V, V
OUT
= 3.3V and 5V
120
Natural Convection
mEZD724xx FAMILY PRODUCTS
Part Number
mEZD72401A-X
Input Voltage
(V)
4.5 - 36
4.5 - 36
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
Output Current
(A)
1
2
100
Output Power (%)
80
60
mEZD72402A-X
ELECTRICAL CHARACTERISTICS
40
VOUT=3.3V
20
0
VOUT=5V
Input Voltage Range
Output Voltage Set
Accuracy
V
IN_MIN
higher than V
OUT
by 1V
4.5 or 6.5 to 36V
±2.5% (Typ.)
25
45
65
85
105
Ambient Temperature (
O
C)
125
Output Voltage Ripple
Line Regulation
V
IN
= 24V, 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
26.4mV
±1% (Typ.)
±1% (Typ.)
400kHz
Hiccup Mode
-40 to 85°C
Efficiency vs. Load Current
V
IN
= 24V, V
OUT
= 1V - 5V
95
Load Regulation
Switching Frequency
Short-Circuit Protection
Operating Temperature
Range
90
Efficiency (%)
85
80
75
70
VOUT=1.0V
VOUT=1.2V
VOUT=1.5V
Over-Temperature
Protection
Rise Time
Calculated MTBF
2
OTP
V
OUT
from 0% to 90%
MIL-HDBK-217F
150°C
0.75ms (Typ.)
4185x10
3
hrs
VOUT=1.8V
VOUT=2.5V
65
60
0
VOUT=3.3V
VOUT=5V
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
Load Current (A)
NOTE:
All electrical characteristics are tested under 25°C ambient temperature, V
IN
= 24V unless otherwise noted.
mEZD72402A 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
mEZD72402A Series
4.5V - 36V 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
MPDIY72402A
ADD
AGND
PGND
GND
Inside mEZD72402A-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
5.6µH
499kΩ
3-Pin
MPDIY72402A
Description
Ceramic Cap., 16V, X5R
Ceramic Cap., 50V, X7R
Ceramic Cap., 10V, X5R
Ceramic Cap., 10V, X5R
Idc 3.3A, DCR 63mΩ
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
74437336056
RC0402JR-07499KL
571-3-644457-3
MPDIY72402A
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
mEZD72402A 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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