MAU300 Series
2W, Miniature SIP, Single & Dual Output DC/DC Converters
Key Features
Efficiency up to 83%
1000VDC Isolation
MTBF > 2,000,000 Hours
Low Cost
Input 5, 12 and 24VDC
Output 3.3, 5, 12, 15, {5, {12 and {15VDC
Temperature Performance -40] to +85]
UL 94V-0 Package Material
Internal SMD Construction
Industry Standard Pinout
Minmax's MAU300 DC/DC's are specially designed to
provide higher power to 2W in a miniature SIP package.
The series consists of 21 models with input voltages of
5V, 12V and 24VDC which offers standard output voltages of
3.3V, 5V, 12V, 15V, ±5V, ±12V and ±15VDC for a wide
choice.
The MAU300 series is an excellent selection for a variety
of applications including distributed power systems, mixed
analog/digital subsystems, portable test equipments, local
power networks and battery backed systems.
High
Power
Density
More Power
1000
VDC
I/O Isolation
$
Low Cost
Low Profile
Block Diagram
Single Output
Dual Output
+Vo
+Vin
LC
Filter
-Vin
-Vo
Bipolar
Push-Pull
Inverter
-Vin
+Vin
LC
Filter
Bipolar
Push-Pull
Inverter
+Vo
Com.
-Vo
1
MINMAX
REV:0 2005/04
MAU300 Series
Model Selection Guide
Model
Number
Input
Voltage
Output
Voltage
Output Current
Input Current
Load
Regulation
Efficiency
VDC
MAU301
MAU302
MAU303
MAU304
MAU305
MAU306
MAU307
MAU311
MAU312
MAU313
MAU314
MAU315
MAU316
MAU317
MAU321
MAU322
MAU323
MAU324
MAU325
MAU326
MAU327
5
(4.5 ~ 5.5)
12
(10.8 ~ 13.2)
24
(21.6 ~ 26.4)
VDC
3.3
5
12
15
{5
{12
{15
3.3
5
12
15
{5
{12
{15
3.3
5
12
15
{5
{12
{15
Max.
mA
500
400
165
133
{200
{83
{66
500
400
165
133
{200
{83
{66
500
400
165
133
{200
{83
{66
Min.
mA
10
8
3
2.5
{4
{1.5
{1
10
8
3
2.5
{4
{1.5
{1
10
8
3
2.5
{4
{1.5
{1
@Max. Load
mA (Typ.)
452
526
495
499
519
504
501
185
212
200
200
210
201
200
92
108
101
101
105
102
100
@No Load
mA (Typ.)
60
30
15
% (Max.)
11
11
7
7
10
7
7
8
8
5
5
8
5
5
8
8
5
5
8
5
5
@Max. Load
% (Typ.)
73
76
80
80
77
79
79
74
78
82
83
79
82
82
74
77
81
82
79
81
82
Absolute Maximum Ratings
Parameter
5VDC Input Models
Input Surge Voltage
12VDC Input Models
( 1000 mS )
24VDC Input Models
Lead Temperature (1.5mm from case for 10 Sec.)
Internal Power Dissipation
Min.
-0.7
-0.7
-0.7
---
---
Max.
9
18
30
260
650
Unit
VDC
VDC
VDC
]
mW
Notes :
1. Specifications typical at Ta=+25], resistive load,
nominal input voltage, rated output current unless
otherwise noted.
2. Ripple & Noise measurement bandwidth is 0-20
MHz.
3. These power converters require a minimum output
loading to maintain specified regulation.
4. Operation under no-load conditions will not
damage these modules; however, they may not
meet all specifications listed.
5. All DC/DC converters should be externally fused at
the front end for protection.
Min.
Max.
-40
+85
-40
+90
-40
+125
---
95
Free-Air Convection
Unit
]
]
]
%
6. Other input and output voltage may be available,
please contact factory.
7. Specifications subject to change without notice.
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
Environmental Specifications
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Cooling
Conditions
Ambient
Case
REV:0 2005/04
MINMAX
2
MAU300 Series
Input Specifications
Parameter
Start Voltage Range
Model
5V Input Models
12V Input Models
24V Input Models
Reverse Polarity Input Current
Input Filter
All Models
Min.
4.5
10.8
21.6
---
Typ.
5
12
24
---
Pi Filter
Max.
5.5
13.2
26.4
0.3
A
VDC
Unit
Output Specifications
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Over Load
Temperature Coefficient
Output Short Circuit
Over Line, Load & Temp.
Dual Output, Balanced Loads
For Vin Change of 1%
Io=20% to 100%
Conditions
Min.
---
---
---
---
---
---
120
---
0.5 Second Max.
Typ.
{1.0
{0.1
{1.2
100
---
---
---
{0.01
Max.
{3.0
{1.0
{1.5
150
200
5
---
{0.02
Unit
%
%
%
%
mV P-P
mV P-P
mV rms
%
%/]
See Model Selection Guide
General Specifications
Parameter
Isolation Voltage Rated
Isolation Voltage Test
Isolation Resistance
Isolation Capacitance
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
Conditions
60 Seconds
Flash Tested for 1 Second
500VDC
100KHz,1V
Min.
1000
1100
1000
---
50
2000
Typ.
---
---
---
80
80
---
Max.
---
---
---
120
100
---
Unit
VDC
VDC
M[
pF
KHz
K Hours
Capacitive Load
Models by Vout
Maximum Capacitive Load
# For each output
3.3V
470
5V
470
12V
470
15V
470
{5V
#
390
{12V
#
390
{15V
#
390
Unit
uF
Input Fuse Selection Guide
5V Input Models
1000mA Slow - Blow Type
12V Input Models
500mA Slow - Blow Type
24V Input Models
200mA Slow - Blow Type
3
MINMAX
REV:0 2005/04
MAU300 Series
100
90
Efficiency (%)
80
70
60
50
Efficiency (%)
Low
Nom
Input Voltage (V)
High
100
90
80
70
60
50
Low
Nom
Input Voltage (V)
High
Efficiency vs Input Voltage ( Single Output )
Efficiency vs Input Voltage ( Dual Output )
90
80
Efficiency (%)
Efficiency (%)
10
20
40
60
80
70
60
50
40
30
20
100
90
80
70
60
50
40
30
20
10
20
40
60
80
100
Load Current (%)
Load Current (%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100
80
Output Power (%)
100LFM
400LFM
200LFM
60
Natural
convection
40
20
0
-40
〜
50
60
70
80
]
90
100
110
Ambient Temperature
Derating Curve
REV:0 2005/04
MINMAX
4
MAU300 Series
Test Configurations
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with a inductor
Lin (4.7uH) and Cin (220uF, ESR < 1.0[ at 100 KHz) to
simulate source impedance.
Capacitor Cin, offsets possible battery impedance.
Current ripple is measured at the input terminals of the
module, measurement bandwidth is 0-500 KHz.
To Oscilloscope
+
Battery
+
Lin
Current
Probe
+Vin
+Out
Load
In applications where power is supplied over long lines and
output loading is high, it may be necessary to use a capacitor
at the input to ensure startup.
Capacitor mounted close to the power module helps
ensure stability of the unit, it is comended to use a good
quality low Equivalent Series Resistance (ESR < 1.0[ at 100
KHz) capacitor of a 2.2uF for the 5V input devices, a 1.0uF for
the 12V input devices and a 0.47uF for the 24V devices.
+
DC Power
Source
-
+
Cin
-Vin
-Out
+Vin
DC / DC
Converter
+Out
Load
DC / DC
Converter
-Vin
-Out
Cin
Output Ripple Reduction
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.33uF ceramic capacitor.
Scope measurement should be made by using a BNC
socket, measurement bandwidth is 0-20 MHz. Position the
load between 50 mm and 75 mm from the DC/DC Converter.
+Vin
Single Output
DC / DC
Converter
-Vin
-Out
+Out
Copper Strip
Cout
Resistive
Scope
Load
A good quality low ESR capacitor placed as close as
practicable across the load will give the best ripple and noise
performance.
To reduce output ripple, it is recommended to use 1.5uF
capacitors at the output.
+
DC Power
Source
-
-Vin
+Vin
Single Output
DC / DC
Converter
-Out
+Out
Cout
Load
+Vin
Dual Output
DC / DC
Converter
-Vin
+Out
Com.
Copper Strip
Cout
Cout
Scope
Resistive
Load
Scope
+
DC Power
Source
-
+Vin
+Out
Dual Output
DC / DC Com.
Converter
Cout
Load
-Out
-Vin
-Out
Design & Feature Considerations
Maximum Capacitive Load
The MAU300 series has limitation of maximum connected
capacitance at the output.
The power module may be operated in current limiting
mode during start-up, affecting the ramp-up and the startup
time.
For optimum performance we recommend 390uF
maximum capacitive load for dual outputs and 470
u
F
capacitive load for single outputs.
The maximum capacitance can be found in the data sheet.
Thermal Considerations
Many conditions affect the thermal performance of the
power module, such as orientation, airflow over the module
and board spacing. To avoid exceeding the maximum
temperature rating of the components inside the power
module, the case temperature must be kept below 90°C.
The derating curves are determined from measurements
obtained in an experimental apparatus.
Input Source Impedance
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power module.
Position of air velocity
probe and thermocouple
15mm / 0.6in
50mm / 2in
Air Flow
DUT
5
MINMAX
REV:0 2005/04
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