LC78_0.5 Cost effective Series
Wide Input Non-Isolated & Regulated, Single Output
Switching Regulator
Cost Effective Switching
Regulator
Low Profile
(L*W*H=11.6*6.0*10.2)
Wide 4.75V to 28V Operating
Input Range
Compatible With LM78
Pin-Out
Short Circuit Protection (SCP)
No Heat Sink Required
Low Ripple and Noise
Low No Load Input Current
The LC78_0.5 series cost effective high efficiency switching regulators
are ideally suited to replace LM78xx linear regulators and are pin
compatible.
Model selection:
LC78_yy-pp
LC=Series; ##=Vout; pp=output current
Example:
Efficiency up to 95%
LC78_05-0.5
LC=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
Full load
Min
Typ
Max
3
Units
%
Output voltage
accuracy
Line regulation
Vin= min. to max. at
full load
0.5
%
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
80
mV
-40°C to +85°C ambient
0.025%/°C TYP
Switching frequency
330
160
KHz
mA
Storage humidity range:
< 95%
MTBF (using MIL-HDBK-217F):
+25°C 2578x103 hours
+75°C 1371x103 hours
No load input
current
Vin=24VDC at 0% load
Internal IC junction
6
Packing quantities:
Case material:
Potting material:
Weight:
42pcs per Tube
Thermal shutdown
°C
μF
Non Conductive Black Plastic UL94-V0
Max capacitance
load
220
Epoxy UL94-V0
1.3g
Part Number
Input Voltage
Range [VDC]
Output Voltage
[VDC]
Output Current
Efficiency
[Vin. min]
Efficiency
[Vin. max]
Package
[A]
0.5
0.5
0.5
LC78_03-0.5
LC78_05-0.5
LC78_12-0.5
4.75-28
6.8-28
15-28
3.3
5.0
93
95
95
84
88
93
SIP3
SIP3
SIP3
12.0
Add suffix “L” for 90° bend pins, for example: LC78_03-0.5L
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.
Page 1 of 2
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
LC78_0.5 – Rev. 2017-2.0
Specifications subject to change without notice.