GAPTEC-Electronic GmbH & Co. KG

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LCB78_0.5 – Rev. 2017-1.9

Specifications subject to change without notice.

LCB78_0.5 Cost effective Series

Wide Input Non-Isolated & Regulated, Single Output

Low profile

(L*W*H=11.6*6.0*10.2)

Wide 4.5V to 55V operating

input range

Efficiency up to 95%

Compatible with LM78 Pin

Out

Short circuit protection (SCP)

No heatsink required

Low ripple and noise

Low quiescent current

(No Load) 200uA typ.

Switching Regulator

The LCB78_0.5 series cost effective high efficiency switching regulators

are ideally suited to replace LM78xx linear regulators and are pin

compatible.

Part Number

Input Voltage Range

[VDC]

Output Voltage

[VDC]

Output Current

[A]

Efficiency

[Vin. min]

Efficiency

[Vin. max]

LCB78_03-0.5

4.5-55

3.3

0.5

92

75

LCB78_05-0.5

6.5-55

5.0

0.5

95

82

Add suffix “L” for 90° bend pins, for example: LCB78_03-0.5L

Model selection:

LCB78_yy-pp

LCB=Series; ##=Vout; pp=output current

Example:

LCB78_05-0.5

LCB=Series; ##= 5Vout; pp=0.5A

Common specifications

Short circut protection:

Continuous, automatic recovery

Temperature rise at full load:

25°C MAX, 15°C TYP

Cooling:

Free air convection

Operation temperature range:

-40°C~+85°C

Storage temperature range:

-55°C ~+125°C

Lead temperature:

300°C MAX, 1.5mm from case for 10 sec

Operating case temperature:

100°C MAX

Temperature coefficient:

-40°C to +85°C ambient

0.015%/°C TYP

Storage humidity range:

< 95%

MTBF (using MIL-HDBK-217F):

Packing quantities:

42pcs per Tube

Case material:

Non Conductive Black Plastic UL94-V0

Potting material:

Epoxy UL94-V0

Weight:

1.3g

Note:

1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage

and rated output load unless otherwise specified.

2. Only typical models listed. If you need other model, please confirm the power,

input voltage and output voltage, and then phone us.

Output specifications

Item

Test conditions

Min

Typ

Max

Units

Output voltage

accuracy

Vin= min. to max. at

full load

±3

%

Line voltage

regulation

Vin= min. to max. at

full load

0.4

%

Load regulation

0% to 100% load

0.6

%

Ripple + Noise

Vo=5.0VDC at 20MHz

Bandwidth

30

mVp-p

Dynamic load

stability

100%-50% load

±100

mV

Switching frequency

400

KHz

No load input

current

250

uA

Thermal shutdown

Internal IC junction

150

°C

Max capacitance

load

220

μF