MEZD74800A-A Datasheet, PDF (1/2 Pages) MPS Industries, Inc. – 4.5V - 75V Input, 0.3A, DC/DC Power Supply

mEZD74800A-X
4.5V - 75V Input, 0.3A, DC/DC Power Supply
FEATURES
 4.5V to 75V Wide Operating Input  Over-Current Protection
 0.3A Load Current
 Over-Temperature Protection
 Hiccup Short-Circuit Protection  Open Design Files and BOM
 Over-/Under-Voltage Protection  Meets EN55022 Class B Emissions
ORDERING INFORMATION
Part Number
MEZD74800A-A
MEZD74800A-B
Input Voltage
(V)
4.5 - 75
4.5 - 75
Output Voltage
(V)
3.3
5
Output Current
(A)
0.3
0.3
Radiated Emissions
(EN55022 Class B)
24VIN, 5VOUT @ 0.3A
60
55
50
45
40
35
30
25
20
15
10
5
0
30M
EN 55022 Elec tric Fie ld Strength 3 m QP
50 60
80 100M
200
Frequency in Hz
300
400 500
800 1G
90
85
80
75
70
65
60
55
50
0
Efficiency vs. Load Current
VIN = 48V, VOUT = 3.3V and 5V
Vin=48V Vout=3.3V
Vin=48V Vout=5V
0.1
0.2
0.3
Load Current(A)
ELECTRICAL CHARACTERISTICS
Input Voltage Range
Output Voltage Set
Accuracy
Output Voltage Ripple
VIN_MIN higher than VOUT by 1V
VIN = 48V, VOUT = 3.3V, Full Load
Line Regulation
VIN from MIN to MAX, VOUT = 3.3V
Load Regulation
IOUT from MIN to MAX, VOUT = 3.3V
Switching Frequency
Short-Circuit
Protection
Operating
Temperature Range
Over-Temperature
Protection
Rise Time
VOUT = 3.3V
VOUT = 5V
Short Output to Ground
OTP
VOUT from 0% to 90%
Calculated MTBF
MIL-HDBK-217F
4.5 to 75V
±1.7% (Typ.)
44mV
±0.5% (Typ.)
±1% (Typ.)
140kHz
165kHz
Hiccup Mode
-40 to 85°C
175°C
1.54ms (Typ.)
4185x10³ hrs
NOTE: All electrical characteristics are tested under 25°C ambient temperature, V_IN = 48V unless otherwise noted.
mEZD74800A Rev. 1.0
www.MonolithicPower.com
1
3/1/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
Preliminary Specifications Subject to Change
© 2017 MPS. All Rights Reserved.