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eries

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OUTPUT

SPECIFICATIONS

Item

Test conditions

Min

Typ

Max

Units

Output power

0.1

1

W

Line regulation

For Vin change

of ±1%

(3.3V output)

±

1.5

%

(others output)

±

1.2

%

Load

regulation

10% to 100%

Load

(3.3V output)

15

20

%

(5V output)

10

15

%

(9V output)

8.3

15

%

(12V output)

6.8

15

%

(15V output)

6.3

15

%

(24V output)

6.0

15

%

Output voltage accuracy

See tolerance envelope graph

Temperature drift

100% full load

0.03

%/℃

Ripple& Noise*

20MHz Bandwidth

100

150

mVp-p

Switching frequency

Full load, nominal input

100

KHz

*Test ripple and noise by "Parallel cable" method. See detailed operation instructions at Testing of Power

Converter section, application notes.

Note:

1. All specifications measured at T A =25℃ , humidity<75%, nominal input voltage and rated output load unless

otherwise specified.

2. See below recommended circuits for more details.

Microdc Professional Power Module,Inc.

Tel:0086-20-86000646 E-mail:tech@microdc.cn

Website:http://www.microdc.cn

RoHS COMPLIANT INFORMATION

This series is compatible with RoHS soldering systems with a peak wave solder temperature

of 300°C for 10 seconds.

The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin

with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this

series are backward compatible with Sn/Pb soldering systems.

REACH COMPLIANT INFORMATION

This series has proven that this product does not contain harmful chemicals, it also has

harmful chemical substances through the registration, inspection and approval.

APPLICATION

NOTE

Requirement on output load

To ensure this module can operate efficiently and reliably,

During operation, the minimum output load is not less than

10% of the full load, and that his product should never be

operated under no load! If the actual output power is very

small, please connect a resistor with proper resistance at the

output end in parallel to increase the load,or use our

company's products with a lower rated output power.

Recommended circuit

If you want to further decrease the input/output ripple,

an "LC" filtering network may be connected to the input and

output ends of the DC/DC converter, see (Figure 1).

It should also be noted that the inductance and the

frequency of the "LC" filtering network should be staggered

with the DC/DC frequency to avoid mutual interference.

However, the capacitance of the output filter capacitor must

be proper. If the capacitance is too big, a startup problem

might arise. For every channel of output, provided the safe

and reliable operation is ensured, the recommended

capacitance of its filter capacitor sees (Table 1).

It not recommended to connect any external capacitor in

the application field with less than 0.5 watt output.

Output Voltage Regulation and Over-voltage Protection

Circuit

The simplest device for output voltage regulation,

over-voltage and over-current protection is a linear voltage

regulator with overheat protection that is connected to the

input or output end in series (Figure 2).

Overload Protection

Under normal operating conditions, the output circuit of

these products has no protection against overload.The

simplest method is to connect a self-recovery fuse in series

at the input end or add a circuit breaker to the circuit.

No parallel connection or plug and play.

TYPICAL

CHARACTERISTICS

OUTLINE

CONNECTIONS