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Ordering number : EN4786
Monolithic Linear IC
LA5609
Multi-Function Voltage Regulator
for Radio Cassette Recorders with CD Player
Overview
The LA5609 is a multi-function multi-voltage power
supply that includes a built-in on/off function. The
LA5609 provides dedicated outputs for motors, audio
systems, CD drive, radio, microprocessor, and loading
drives, thus making it optimal for use as the system power
supply in radio cassette recorders with CD player.
Functions
• Power supply systems for radio cassette recorders with
CD player
• Miniature electronic equipment
• Low-saturation regulator (14.5 V/1.2 A, 9 V/300 mA,
7.5 V/800 mA)
• High-precision power supply (two 5 V/220 mA systems,
5 V/100 mA, 8 V/800 mA)
• Limiter power supply (9 V/60 mA)
Features
• Supports end-product miniaturization by the provision
of built-in control circuits.
• Provides reduced internal power dissipation by the
adoption of a low-saturation regulator.
• Built-in output current limiter prevents IC destruction
due to output shorts.
Package Dimensions
unit: mm
3109-SIP18H
[LA5609]
SANYO: SIP18H
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.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
20695TH (OT) No. 4786-1/8

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LA5609
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Input voltage
VREF pin voltage
POWER CONT pin voltage
AC STBY pin voltage
MODE SW pin voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
VREF
VCONT max
VAC max
VMODE max
Pd max
With no heat sink
Topr
Tstg
Conditions
Operating Conditions at Ta = 25°C
Parameter
Input voltage
Input voltage
Motor 14.5 V output current
Audio 9 V output current
Digital 5 V output current
CD 5 V output current
CD 8 V output current
Radio 5 V output current
Loading 7.5 V output current
9 V limiter output current
Symbol
VCC
VREF
IO MOT
IO AUD
IO DIGI
IO CD5
IO CD8
IO RAD
IO LOAD
IO LIM
Conditions
Operating Characteristics at Ta = 25°C in the specified test circuit
Parameter
Symbol
Conditions
[No Load Currents]
VCC quiescent current
ICC VCC = 12 V, Power cont.: L, 5 VREF: L
Influx 1 VREF 5 V input current
IREF1 VCC = 0 V, Power cont.: L
Influx 2 VREF 5 V input current
IREF2 VCC = 12 V, Power cont. = 5 V
[Motor 14.5 V Regulator Block] VCC = 16 V, IO MOT = 1.2 A, Power cont. = 5 V
Output voltage
VO MOT
Dropout voltage
VDROP-MOT VCC = 14 V, IO MOT = 600 mA
Line regulation
VOLN-MOT VCC = 16 to 22 V
Load regulation
VOLD-MOT IO MOT = 0 to 1.2 A
Peak output current
IOP-MOT
Short circuit output current
IOSC-MOT
[Audio 9 V Regulator Block] VCC = 11 V, IO AUD = 300 mA, Power cont. = 5 V
Output voltage
VO AUD
Dropout voltage
VDROP-AUD VCC = 8.5 V, IO AUD = 150 mA
Line regulation
VOLN-AUD VCC = 11 to 22 V
Load regulation
VOLD-AUD IO AUD = 0 to 300 mA
Peak output current
IOP-AUD
Short circuit output current
IOSC-AUD
Ripple rejection
RREJ-AUD f = 120 Hz, 10 V VCC 15 V, C = 1 µF
Ratings
24
6
6
6
6
3.5
–20 to +80
–55 to +150
Unit
V
V
V
V
V
W
°C
°C
Ratings
6.5 to 22
4.5 to 5.5
0 to 1.2
0 to 300
0 to 220
0 to 220
0 to 0.8
0 to 100
0 to 0.8
0 to 60
Unit
V
V
A
mA
mA
mA
A
mA
A
mA
min
14.0
1.2
8.5
300
typ
14.5
0.4
30
200
300
9.0
0.2
100
100
50
60
max
500
10
700
15.0
0.8
300
800
9.5
0.8
400
400
Unit
µA
µA
µA
V
V
mV
mV
A
mA
V
V
mV
mV
mA
mA
dB
Continued on next page.
No. 4786-2/8

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LA5609
Continued from preceding page.
Parameter
Symbol
Conditions
[Digital 5.0 V Regulator Block] Power cont. = 5 V
Output voltage
VO DIGI VCC = 16 V, IO DIGI = 100 mA
Dropout voltage
VDROP-DIGI VCC = 4.9 V, IO DIGI = 110 mA
VOLN1-DIGI VCC = 16 to 20 V, IO DIGI = 220 mA
Line regulation
VOLN2-DIGI VCC = 16 to 8 V, IO DIGI = 220 mA
VOLN3-DIGI VCC = 16 to 20 V, IO DIGI = 0 mA
VOLN4-DIGI VCC = 16 to 8 V, IO DIGI = 0 mA
Load regulation
VOLD1-DIGI VCC = 16 V, IO DIGI = 100 to 220 mA
VOLD2-DIGI VCC = 16 V, IO DIGI = 100 to 0 mA
Peak output current
IOP-DIGI VCC = 6.5 V
Short circuit output current
IOSC-DIGI VCC = 6.5 V
[CD 5.0 V Regulator Block] Power cont. = 5 V, Mode SW = 5 V
Output voltage
VO CD5 VCC = 16 V, IO CD5 = 100 mA
Dropout voltage
VDROP-CD5 VCC = 4.9 V, IO CD5 = 110 mA
VOLN1-CD5 VCC = 16 to 20 V, IO CD5 = 220 mA
Line regulation
VOLN2-CD5 VCC = 16 to 8 V, IO CD5 = 220 mA
VOLN3-CD5 VCC = 16 to 20 V, IO CD5 = 0 mA
VOLN4-CD5 VCC = 16 to 8 V, IO CD5 = 0 mA
Load regulation
VOLD1-CD5 VCC = 16 V, IO CD5 = 100 to 220 mA
VOLD2-CD5 VCC = 16 V, IO CD5 = 100 to 0 mA
Peak output current
IOP-CD5 VCC = 6.5 V
Short circuit output current
IOSC-CD5 VCC = 6.5 V
[CD 8.0 V Regulator Block] VCC = 9.5 V, IO CD8 = 800 mA, Power cont. = 5 V, Mode SW = 5 V
Output voltage
VO CD8
Dropout voltage
VDROP-CD8 VCC = 7.5 V, IO CD8 = 400 mA
Line regulation
VOLN-CD8 VCC = 9.5 to 22 V
Load regulation
VOLD-CD8 IO CD8 = 0 to 800 mA
Peak output current
IOP-CD8
[Radio 5.0 V Regulator Block] Power cont. = 5 V
Output voltage
VO RAD VCC = 16 V, IO RAD = 50 mA
Dropout voltage
VDROP-RAD VCC = 4.9 V, IO RAD = 50 mA
VOLN1-RAD VCC = 16 to 20 V, IO RAD = 100 mA
Line regulation
VOLN2-RAD VCC = 16 to 8 V, IO RAD = 100 mA
VOLN3-RAD VCC = 16 to 20 V, IO RAD = 0 mA
VOLN4-RAD VCC = 16 to 8 V, IO RAD = 0 mA
Load regulation
VOLD1-RAD VCC = 16 V, IO RAD = 50 to 100 mA
VOLD2-RAD VCC = 16 V, IO RAD = 50 to 0 mA
Peak output current
IOP-RAD VCC = 6.5 V
Short circuit output current
IOSC-RAD VCC = 6.5 V
[Loading 7.5 V Regulator Block] Power cont. = 5 V
REG SET voltage
Dropout voltage
Line regulation
Load regulation
Peak output current
Short circuit output current
VREGS VCC = 16 V, IO LOAD = 400 mA
VDROP-LOAD VCC = 7.3 V, IO LOAD = 400 mA
VOLN1-LOAD VCC = 16 to 20 V, IO LOAD = 800 mA
VOLN2-LOAD VCC = 16 to 9 V, IO LOAD = 800 mA
VOLN3-LOAD VCC = 16 to 20 V, IO LOAD = 0 mA
VOLN4-LOAD VCC = 16 to 9 V, IO LOAD = 0 mA
VOLD1-LOAD VCC = 16 V, IO LOAD = 400 to 800 mA
VOLD2-LOAD VCC = 16 V, IO LOAD = 400 to 0 mA
IOP-LOAD VCC = 9 V
IOSC-LOAD VCC = 9 V
min
4.95
0
–100
–20
–20
0
–60
220
4.9
0
–100
–20
–20
0
–60
220
7.5
0.8
4.9
0
–70
–10
–10
0
–40
100
1.27
0
–20
–10
–10
0
–20
0.8
typ
5.05
0.6
40
–70
0
0
40
–40
260
260
5.0
0.6
40
–70
0
0
40
–40
260
260
8.0
0.6
20
100
1.1
5.0
0.6
20
–40
0
0
20
–20
160
160
1.31
0.4
10
–10
0
0
10
–10
200
max
5.15
1.4
60
0
+20
+20
60
0
5.1
1.4
60
0
+20
+20
60
0
8.5
1.4
200
250
5.1
1.4
40
0
+10
+10
40
0
1.35
0.8
20
0
+10
+10
20
0
Unit
V
V
mV
mV
mV
mV
mV
mV
mA
mA
V
V
mV
mV
mV
mV
mV
mV
mA
mA
V
V
mV
mV
A
V
V
mV
mV
mV
mV
mV
mV
mA
mA
V
V
mV
mV
mV
mV
mV
mV
A
mA
Continued on next page.
No. 4786-3/8

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LA5609
Continued from preceding page.
Parameter
Symbol
Conditions
[9.0 V Limiter Block] VCC = 11 V, IO LIM = 60 mA
Output voltage
VO LIM
Dropout voltage
VDROP-LIM VCC = 8 V
Peak output current
IOP-LIM
Short circuit output current
IOSC-LIM
[Mode Switch] VCC = 12 V
Voltage with radio mode on
VMTH H Voltage when the radio output is switched high
Voltage with radio mode off
VMTH L Voltage when the radio output is switched low
Voltage with CD mode on
VRTH H Voltage when the CD 5 V and CD 8 V are switched high
Input impedance
ZI
[Power Control] VCC = 12 V
Output on control voltage
VI CONT-ON
Output off control voltage
VI CONT-OFF
[AC standby]
Output on control voltage
VI AC-ON
Output off control voltage
VI AC-OFF
[5 V System Regulator Block] VCC = 16 V, IO DIGI = IO CD5 = 100 mA, IO RAD = 50 mA
Difference between
output voltages
VDEF
min
8.0
60
1.1
2.9
2.9
16.8
3.0
2.0
Timing Chart
typ max Unit
9.0 9.5 V
1.0 V
150 mA
200 mA
1.4 1.7 V
3.1 3.3 V
3.1 3.3 V
24 31.2 k
V
2.0 V
V
1.0 V
0 0.15
V
No. 4786-4/8

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Function Table
VREF Power cont. Mode SW
L (0 V)
L M (2.5 V)
H (5 V)
L
L (0 V)
H M (2.5 V)
H (5 V)
L (0 V)
L M (2.5 V)
H (5 V)
H
L (0 V)
H M (2.5 V)
H (5 V)
Audio
9V
Test Circuit
LA5609
Motor
14.5 V
Digital
5V
L
L
L
L
L
L
L
L
L
H
H
H
VOUT
Loading
7.5 V
CD 8 V/
CD 5 V
L
L
L
L
L
L
L
L
L
L
L
H
Radio
5V
L
L
L
L
L
L
L
L
L
L
H
L
Limitter
9V
H
H
H
H
H
H
H
H
H
H
H
H
Note: * This diode is required for bringing up the CD 8 V regulator.
No. 4786-5/8