Sanyo LA5602 Specifications

Ordering number : ENN4281

D2599TH (OT)/10293TS A8-8788, A8-9716 No.4281-1/5

0.6

18.0

3.4

1.38

3.0

0.6 1.2

2.54

1.0

1

7

10.8

15.0 max

13.4

1.0 min

5.8

SANYO: SIP7H

[LA5602]

LA5602

SANYO Electric Co.,Ltd. Semiconductor Company

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

Low-Dropout Voltage Regulator with Reset

and On-Off Function

Monolithic Linear IC

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.

Overview

The LA5602 incorporates both a 5.0V voltage regulator
function and reset generator function into a single-chip
for micro controller power supply application. The
LA5602 supports improvements in efficiency and set
compactness by permitting operation at low input-output
voltage differences.

Functions

• Low dropout regulator with 350mA and 5.0V output

• Power supply reset generator function

• Supports on-off control of 5V using equipped enable
pin (high active)

Features

• Low minimal input-output voltage difference (0.5V
typ.)

• Supports setting of reset output delay time using
external capacitor

• Built-in fold back current limiting circuit and excessive
heat protection circuit

• Reset output using active pull-up for simpler noise
reduction

Package Dimensions

unit : mm

3075-SIP7H

LA5602

No. 4281-2/5

Parameter Symbol Conditions Ratings Unit

Maximum input voltage V

IN

max 18 V

Enable pin voltage V

EN

max VINmax V

Reset output pin voltage V

RES

max 18 V
Allowable power dissipation Pd max 1.5 W
Operating temperature Topg –30 to +80 °C
Storage temperature Tstg –55 to +150 °C

Specifications

Maximum Ratings at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

Input voltage V

IN

5.6 to 17 V

Output current I

OUT

0 to 350 mA

Reset output source current I

ORH

0 to 200 µA

Reset output synch current I

ORL

0 to 2 mA

Operating Conditions at Ta = 25°C

Parameter Symbol Conditions

Ratings

Unit

min typ max

[Power Supply Section]

Output voltage V

OUT

4.75 5.0 5.25 V

Drop-out voltage V

DROP

0.5 1.0 V

Line regulation ∆V

OLN

5.6≤VIN≤17V 20 100 mV

Load regulation ∆V

OLD

5mA≤IO≤350mA 50 150 mV

Peak output current I

OP

350 500 mA

Output short current I

OSC

100 400 mA

Current dissipation

I

Q

1I

OUT

= 0 2.1 4 mA

I

Q

21050mA

Output noise voltage V

N5

10Hz≤f≤100kHz 70 µVrms

Temperature coefficient of output voltage ∆V

O

/∆Ta Tj = 25 to 125°C 1.6 mV/°C

Ripple rejection Rref f = 120Hz, 6V≤V

IN

≤17V 60 dB

Output on-control voltage V

ENH

2.6 V

Output off-control voltage V

ENL

1.0 V

Low output voltage V

O OFF

0.3 V

[Reset Section]

High reset output voltage V

ORHIORH

= 200µA, Cd pin open 4.73 4.98 5.23 V

Low reset output voltage V

ORLISRL

= 2mA, Cd - GND shorted 100 200 mV

Reset threshold voltage V

RT

3.95 4.2 4.45 V
Reset hysteresis voltage Vhys 50 100 200 mV
Reset output delay time td Cd = 0.1µF 7.5 10 12.5 ms

Operating Characteristics at Ta = 25°C, VIN= 8 V, I

OUT

= 350 mA, C

OUT

= 47µF, according to specified Test Circuit