1 Watt Ultra Miniature SIP DC/DC Converters
Single and Dual Outputs
Key Features
MAU100 Series
Efficiency up to 81%
Miniature Package
I/O Isolation 1000VDC
SMT Technology
Lost Cost
MTBF > 2,000,000 Hours
MAU100 1W DC/DC's are specially designed to
provide the optimum cost/benefit power solution in a miniature
SIP package.
The series consists of 33 models with input voltages of
5V, 12V and 24V,and offers standard output voltages of 3.3V,
5V, 9V, 12V, 15V,{5V, {9V, {12V and {15V for a wide
choice.
The MAU100 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.
1000
VDC
I/O Isolation
$
Low Cost
Low Profile
Block Diagram
Single Output
Dual Output
+Vo
+Vin
Bipolar
Push-Pull
Inverter
-Vin
-Vo
-Vin
+Vin
Bipolar
Push-Pull
Inverter
+Vo
Com.
-Vo
MAU100 Series
Model Selection Guide
Model
Number
Input
Voltage
Output
Voltage
Output Current
Input Current
Load
Regulation
Efficiency
VDC
MAU101
MAU102
MAU103
MAU104
MAU105
MAU106
MAU107
MAU108
MAU109
MAU111
MAU112
MAU113
MAU114
MAU115
MAU116
MAU117
MAU118
MAU119
MAU121
MAU122
MAU123
MAU124
MAU125
MAU126
MAU127
MAU128
MAU129
MAU151
MAU152
MAU153
MAU154
MAU155
MAU156
VDC
3.3
5
9
12
15
{5
{9
{12
{15
3.3
5
9
12
15
{5
{9
{12
{15
3.3
5
9
12
15
{5
{9
{12
{15
5
12
15
{5
{12
{15
Max.
mA
260
200
110
84
67
{100
{56
{42
{34
260
200
110
84
67
{100
{56
{42
{34
260
200
110
84
67
{100
{56
{42
{34
200
84
67
{100
{42
{34
Min.
mA
5
4
2
1.5
1
{2
{1
{0.8
{0.7
5
4
2
1.5
1
{2
{1
{0.8
{0.7
5
4
2
1.5
1
{2
{1
{0.8
{0.7
4
2
1
{2
{1
{1
@Max. Load
mA (Typ.)
235
281
260
258
258
278
262
258
258
96
114
106
105
104
113
106
104
105
49
59
54
54
53
58
55
53
53
93
85
85
93
85
85
@No Load
mA (Typ.)
% (Max.)
10
10
8
7
7
10
8
7
7
8
8
5
5
5
8
5
5
5
8
8
5
5
5
8
5
5
5
8
5
5
8
5
5
@Max. Load
% (Typ.)
73
71
76
78
78
72
77
78
79
74
73
78
80
80
74
79
81
81
73
71
76
78
79
72
76
79
80
72
79
79
72
80
80
5
(4.5 ~ 5.5)
30
12
(10.8 ~ 13.2)
12
24
(21.6 ~ 26.4)
7
15
(13.5 ~ 16.5)
11
Absolute Maximum Ratings
Parameter
5VDC Input Models
12VDC Input Models
Input Surge Voltage
( 1000 mS )
15VDC Input Models
24VDC Input Models
Lead Temperature (1.5mm from case for 10 Sec.)
Internal Power Dissipation
Min.
-0.7
-0.7
-0.7
-0.7
---
---
Max.
9
18
18
30
260
450
Unit
VDC
VDC
VDC
VDC
]
mW
Note :
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 devices; however they may not meet all listed
specifications.
5. All DC/DC converters should be externally fused at the
front end for protection.
6. Other input and output voltage may be available, please
contact factory.
7. Specifications subject to change without notice.
Exceeding these values can damage the module.These are not
continuous operating ratings.
MAU100 Series
Test Configurations
Input Reflected-Ripple Current Test Setup
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 commended 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,15V input devices and a 0.47uF for the 24V devices.
DC / DC
Converter
-Vin
-Out
Cin
Output Ripple Reduction
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 1.0uF
capacitors at the output.
+
DC Power
Source
-
-Vin
+Vin
Single Output
DC / DC
Converter
-Out
+Out
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.
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
Scope
Resistive
Load
Cout
Load
+
DC Power
Source
-
+Vin
+Out
Dual Output
DC / DC Com.
Converter
Cout
Load
-Vin
-Out
+Vin
Dual Output
DC / DC
Converter
-Vin
+Out
Com.
Copper Strip
Cout
Cout
Scope
Resistive
Load
Scope
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 95°C.
The derating curves are determined from measurements
obtained in an experimental apparatus.
-Out
Design & Feature Considerations
Maximum Capacitive Load
The MAU100 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 100
u
F
maximum capacitive load for dual outputs and 220
u
F
capacitive load for single outputs.
The maximum capacitance can be found in the data.
Position of air velocity
probe and thermocouple
15mm / 0.6in
50mm / 2in
Air Flow
DUT
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.
+
DC Power
Source
-
+
Cin
+Vin
DC / DC
Converter
-Vin
+Out
Load
-Out
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