Sanyo L78LR05 Specifications

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

150mA, 5V 5-Pin Voltage Regulator

with Reset Function

Ordering number:ENN2622B

L78LR05

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

6.5

2.3

0.5

1.2

0.5

1.3 1.3 1.3 1.3

0.6

5.0

1.55.5

7.0

7.5

Overview

The L78LR05 is voltage regulator IC that performs the reset signal generating function when the power supply of a microcomputer system is turned ON/OFF. The L78LR05 is convenient for battery backup system at the time of po wer failure. The reset threshold voltage VRT is ranked as shown below.

VTR)V(8.45.42.49.36.33.30.3

Applications

• Prevention of malfunction that may occur when the pow er supply of a microcomputer is turned ON/OFF.

• Measures taken against abnormal operations that may occur at the time of instantaneous break of power supply.

• Direct battery backup for SRAM.

knarBCDEFGH

Package Dimensions

unit:mm

3103

[L78LR05]

1 : INPUT 2 : DELAY CAPACITOR 3 : GND 4 : RESET OUTPUT 5 : OUTPUT SANYO : TP-5H

Features

• 5V, 150mA output.

• Capable of generating a microcomputer reset signal.

• No battery-regulator switching circuit required at the battery backup mode (Output leakage current : 2µA or less).

• An external capacitor can be used to set the reset output delay time.

• Applicable to the po wer supply of CMOS , NMOS microcomputers.

• Especially suited for use as an on-board regulator for a microcomputer system.

• Small-sized power package TP-5H permitting the equipment to be made compact.

• The allowable power dissipation can be increased by being surface-mounted on the board.

• Capable of being mounted in a variety of methodes because of various lead forming versions available.

• On-chip protectors (overcurrent limiter, ASO protector, thermal protector).

D1599TH (KT)/61093TS/8039YT/5178TA/7067TA, TS No.2622–1/6

Specifications

Maximum Ratings at Ta = 25˚C

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egatloVtupnImumixaMV

noitapissiDrewoPelbawollAxamdP)nifoN( 0.1W

erutarepmeTgnitarepOrpoT 08+ot03–

erutarepmeTegarotSgtsT 051+ot55–

Operating Conditions at Ta = 25˚C

retemaraPlobmySsnoitidnoCsgnitaRtinU

egatloVtupnIV

tnerruCtuptuOI

L78LR05

xam 52V

TUO

02ot5.7V 051ot1Am

˚C ˚C

Operating Characteristics at Ta = 25˚C, VIN=10V, I

retemaraPlobmySsnoitidnoC

egatloVtuptuO

noitalugeReniL

noitalugeRdaoL

noitapissiDtnerruCI

noitairaVnoitapissiDtnerruC

egatloVesioNtuptuOV

egatloVtuptuOfotneieiffeoCerutarepmeT noitcejeRelppiRjerR 97Bd egatloVtuoporDV

tnerruCtrohStuptuOI

egatloVtuptuOteseR-"H"V

egatloVtuptuOteseR-"L"V

egatloVdlohserhTteseRV

egatloVsiseretsyHdlohserhTteseRV

emiTyleDtuptuOteseRt

tnerruCegakaeLniPtuptuOI

tnerruCegakaeLniPtuptuOteseRI

V V

∆V ∆V

∆I

∆V

Tj=25°C

1TUO

V7 ≤VNI≤ Am1,V02 ≤I

2TUO

Tj=25°C, 7V≤VIN≤20V

1ENILo

Tj=25°C, 8V≤VIN≤20V

2ENILo

Tj=25°C, 1mA≤I

1DAOLo

Tj=25°C, 1mA≤I

2DAOLo

Tj=25°C, I

V8 ≤VNI≤ V0221.05.1Am

ENILCC

Am1 ≤I

DAOLCC

/∆ jT

TUO

CSO

HRO LRO

HTR

zH01 ≤f≤ I,zHk001

=1mA, Tj=25 to 125°C

OUT

Tj=25°C, f=120Hz, 8V≤VIN≤18V Tj=25°C

PORD

Tj=25°C Tj=25°C Tj=25°C, VIN=3V, Io=1mA B, Tj=25°C C, Tj=25°C D, Tj=25°C E, Tj=25°C F , Tj=25°C G, Tj=25°C H, Tj=25°C

VNIV,0=

KAELO

VNIV,0=

KAELRO

Equivalent Circuit Block Diagram

=40mA, cin=1µF, co=10µF

OUT

sgnitaR

nimpytxam

8.40.52.5V

≤ Am0757.452.5V

TUO

≤100mA

OUT

≤40mA

OUT

=100mA

OUT

≤ Am0410.01.0Am

TUO

Fµ1.0=5.7015.21sm

V6=100.02Aµ

Am1=08Vµ

V6=100.02A

0.657Vm

0.305Vm

0.906Vm

0.303Vm

4.14.3Am

5.0±

5.12.2V

051003054Am

8.40.52.5V 01002Vm

06.48.459.4V

03.45.456.4V

00.42.453.4V

07.39.350.4V

04.36.357.3V

01.33.354.3V

08.20.351.3V

05001002Vm

mV/˚C

tinU

No.2622–2/6

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