LCB78_0.5 Cost effective Series
Wide Input Non-Isolated & Regulated, Single Output
Switching Regulator
Low profile
Short circuit protection (SCP)
The LCB78_0.5 series cost effective high efficiency switching regulators
are ideally suited to replace LM78xx linear regulators and are pin
compatible.
(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
No heatsink required
Low ripple and noise
Low quiescent current
(No Load) 200uA typ.
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:
Temperature rise at full load:
Cooling:
Output specifications
Continuous, automatic recovery
25°C MAX, 15°C TYP
Free air convection
Item
Test conditions
Min
Typ
Max
3
Units
%
Output voltage
accuracy
Vin= min. to max. at
full load
Line voltage
regulation
Vin= min. to max. at
full load
0.4
%
Operation temperature range:
Storage temperature range:
Lead temperature:
-40°C~+85°C
-55°C ~+125°C
Load regulation
Ripple + Noise
0% to 100% load
0.6
30
%
300°C MAX, 1.5mm from case for 10 sec
100°C MAX
Vo=5.0VDC at 20MHz
Bandwidth
mVp-p
Operating case temperature:
Temperature coefficient:
Dynamic load
stability
100%-50% load
100
mV
-40°C to +85°C ambient
0.015%/°C TYP
Switching frequency
400
150
KHz
uA
Storage humidity range:
< 95%
MTBF (using MIL-HDBK-217F):
+25°C 2805x103 hours
+70°C 2054x103 hours
No load input
current
250
220
Packing quantities:
Case material:
Potting material:
Weight:
42pcs per Tube
Thermal shutdown
Internal IC junction
°C
μF
Non Conductive Black Plastic UL94-V0
Max capacitance
load
Epoxy UL94-V0
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.
Part Number
Input Voltage Range
[VDC]
Output Voltage
[VDC]
Output Current
[A]
Efficiency
[Vin. min]
Efficiency
[Vin. max]
LCB78_03-0.5
LCB78_05-0.5
4.5-55
6.5-55
3.3
5.0
0.5
0.5
92
95
75
82
Add suffix “L” for 90° bend pins, for example: LCB78_03-0.5L
Page 1 of 2
LCB78_0.5 – Rev. 2017-1.9
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com