Page 1
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
Monolithic Linear IC
Variable 4-Pin Voltage Regulator
Ordering number:ENN918F
L78MG
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
0.8
0.8
0.5
14.0
3.2
9.5
2.0
2.7
12.0max
4.0
2.0
1.2
1.5
0.8
1.7
1.2
0.6
2.4 2.4 2.4
15.5
Applications
• General-purpose voltage regulator.
Features
• Wide operating voltage range : 7.5 to 35V
• 500mA output.
• On-chip thermal protector.
• On-chip overcurrent limiter.
• On-chip ASO protector.
• 4-pin SIP package facilitating mounting and thermal design as in case of transistor.
• Minimum number of external parts required.
• Easy to vary voltage.
Specifications
Maximum Ratings at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatloVylppuSmumixaMV
noitapissiDrewoPelbawollAxamdP 2.1W
erutarepmeTgnitarepOrpoT 08+ot02–
erutarepmeTegarotSgtsT 051+ot04–
xam1niP 53V
CC
Package Dimensions
unit:mm
3027A-SIP4H
[L78MG]
SANYO : SIP4H
˚C
˚C
Recommended Operating Conditions at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatloVtupnIV
tnerruCtuptuOI
NI
TUO
11200TH (KT)/83094HK/8047TA/8225MW/7233KI/O281KI, TS No.918–1/3
V
Vot3+
TUO
51+V
TUO
sselro005Am
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L78MG
Operating Characteristics at Ta = 25˚C, VIN=10V, I
retemaraPlobmySsnoitidnoC
egatloVtupnIV
egatloVtuptuOV
∆V
)egatlovtuptuootdecnerefeR(noitalugeReniL
∆V
)egatlovtuptuootdecnerefeR(noitalugeRdaoL
tnerruCniPlortnoC 0.10.5Aµ
noitapissiDtnerruCI
noitcejeRelppiRjerR
egatloVesioNtuptuOV
porDegatloVtuptuO-tupnImuminiMV
tnerruCtiucriCtrohSI
tnerruCtuptuOkaePI
egatloVecnerefeR 8.40.52.5V
Tj=25°C
NI
VNIV=
TUO
Tj=25°C, I
(V
Tj=25°C, I
ENILo
V(
V(
Tj=25°C, 5mA≤I
DAOLo
Tj=25°C
Tj=25°C
CC
8V≤VIN=18V , V
Tj=25°C
8V≤VIN=18V , V
ON
PORD
VIN=35V , Tj=25°C
SO
Tj=25°C
PO
Tj=25°C
OUT
TUO
TUO
zH01 ≤f≤ V,zHk001
Equivalent Circuit
=350mA, CIN=0.33µF, C
OUT
5+0.503V
TUO
=200mA, V
OUT
+2.5V)≤VIN≤(V
=200mA, V
OUT
)V3+ ≤VNI≤ V(
)V3+ ≤VNI≤ V(
OUT
OUT
OUT
=500mA, VIN=V
=5V, f=120Hz, I
=5V, f=120Hz, I
≤10V
OUT
+20V)
OUT
≥10V
OUT
)V51+51.057.0%
TUO
)V7+1.076.0%
TUO
V5=804Vµ
TUO
OUT
OUT=
OUT=
+7V
300mA,
100mA
OUT
=0.1µF
sgnitaR
nimpytxam
5.753V
2.00.1%
2.00.1%
8.20.5Am
2608Bd
26Bd
25.2V
001006Am
4.08.04.1A
tinU
Sample Application Circuit
No.918–2/3
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L78MG
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co. , Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of January, 2000. Specifications and information herein are subject
to change without notice.
PS No.918–3/3
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