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LMP78_1.0 Series
Wide Input Non-Isolated & Regulated, Single Positive/Negative Output
Switching Regulator (POL)
Internal transient voltage
protection
Low profile
(L*W*H=11.6*6.0*10.2)
Wide 4.5V to 42V operating
input range
Compatible with LM78
Short circuit protection (SCP)
Special outputs available from
1.2V to 15V
Low ripple/noise and
efficiency up to 97%
Low quiescent current (no
load) 200uA typ.
pin-out
Common specifications
Short circut protection: Continuous, automatic recovery
Temperature rise at full load: 40°C MAX
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: 110°C MAX
Case thermal impendance: 70°C/W
Temperature coefficient: -40°C to +85°C ambient
Storage humidity range: < 95%
MTBF (using MIL-HDBK-217F): +25°C 2844x103 hours
Packing quantities: 42pcs per Tube
Case material: Non Conductive Black Plastic UL94-V0
Potting material: Epoxy UL94-V0
Soldering profile: 265°C/10sec. MAX
Weight: 1.5g
0.02%/°C MAX
+71°C 2088x103 hours
The LMP78_1.0 series high efficiency switching regulators are ideally
suited to replace LM78xx linear regulators and are pin compatible.
Model selection:
LMP78_yy-pp
LC=Series; yy=Vout; pp=output current
Example:
LMP78_05-1.0
LMP=Series; yy= 5Vout; pp=1.0A
Output specifications
Item Test conditions Min Typ Max Units
Output voltage
accuracy
Output current 1.0 A
Output shorted
current limit
Internal power
dissipation
Line regulation Vin= min. to max. at
Load regulation 0% to 100% load 0.6 %
Ripple + Noise 20MHz Bandwidth 30 60 mVp-p
Dynamic load
stability
Switching frequency 600 KHz
Quiescent current Vin=min. to max. at
Thermal shutdown Internal IC junction 150 °C
Max capacitance
load
Full load ±2 %
Vout= 0VDC 2.0 A
0.7 W
0.4 %
full load
100%-50% load ±150 mV
250 uA
0% load
470 μF
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage
and rated output load unless otherwise specified.
Part Number Input Voltage
Range [VDC]
LMP78_1.2-1.0 4.5-42 1.2 1.0 72 63 55 SIP3
LMP78_1.5-1.0 4.5-42 1.5 1.0 77 68 55 SIP3
LMP78_1.8-1.0 4.5-42 1.8 1.0 80 71 55 SIP3
LMP78_2.5-1.0 4.5-42 2.5 1.0 85 77 55 SIP3
LMP78_03-1.0 4.75-42 3.3 1.0 88 81 55 SIP3
LMP78_05-1.0 6.5-42 5 1.0 93 86 55 SIP3
LMP78_6.5-1.0 8-42 6.5 1.0 93 88 55 SIP3
LMP78_09-1.0 11-42 9 1.0 95 91 55 SIP3
LMP78_12-1.0 14-42 12 1.0 97 93 55 SIP3
LMP78_15-1.0 17-42 15 1.0 97 93 55 SIP3
Output Voltage
[VDC]
Output Current
[A]
Efficiency
[Vin. min]
Efficiency
[Vin. max]
TVP limited
[Vp-p]
Package
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GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
Specifications subject to change without notice.
LMP78_1.0 – Rev. 2016-1.4
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LC78_1.0 Low Cost Series
Wide Input Non-Isolated & Regulated, Single Positive/Negative Output
Typical characteristics
Derating Graph (Natural convection)
Output power (%)
Operating Temperature (°C)
Internal Transient Voltage Protection and waveform (No External Components Required)
3 to 10 feet
Long Distance
Efficiency Vs Vin (Full Load)
LMP78
Ripple Vs Vin (Full Load)
Standard application circuit
General Application Negative Output Application ( 1.2V-15V Modes )
LMP78
LMP78
Mechanical dimensions/footprint
Front view
marking
Right
view
Tube outline dimensions
Tolerance:
XX.X ± 0.25 mm
XX.XX ± 0.15 mm
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
Top view
Tolerance:
XX.X ± 0.5 mm
Note:
L=520 ± 2 mm
Devices per tube quantity: 42 PCS
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LMP78_1.0 – Rev. 2016-1.4
Specifications subject to change without notice.
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