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
Power Amplifier for 1.5V Headphone Stereos
Ordering number:ENN2333B
LA4537M
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
21800TN (KT)/63095HA (KOTO)/8307AT, TS No.2333–1/3
1
10
5
6
0.55
1.8max
1.00.35
5.1 0.15
6.4
1.5˚
0.1
4.4
5.15 0.625
Package Dimensions
unit:mm
3086A-MFP10S
[LA4537M]
SANYO : MFP10S
Features
• Low current drain.
• 16Ω load drive capability.
• Excellent reduced voltage characteristics.
• Excellent power supply ripple rejection.
• Minimum number of external parts required (no input
capacitor, feedback capacitor required).
• Less harmonic interference in radio band.
• On-chip power switch function, muting function.
˚C
˚C
Operating Conditions at Ta = 25˚C
Operating Characteristics at Ta = 25˚C, RL=16Ω, Rg=600 Ω, See specified Test Circuit.
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Continued on next page.
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppusmumixaMV
CC xamtnecseiuQ 5.4V
noitapissidrewopelbawollAxamdP 003Wm
erutarepmetgnitarepOrpoT 57+ot02–
erutarepmetegarotSgtsT 521+ot04–
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppusdednemmoceRV
CC 5.1V
egnaregatlovgnitarepOV
CC po 0.4ot9.0V
ecnatsiserdaoldednemmoceRR
L23ot61 Ω
retemaraPlobmySsnoitidnoC sgnitaR tinU
nimpytxam
tnerructnecseiuQ 1occIV
CC tnecseiuq,V2.1=5.30.6Am
2occIV
CC 01nip,V5.2= →DNG4.15.2Am
3occIV
CC 1nip,V5.2= →DNG0.1Aµ
niagegatloVGVV
CC V,zHk1=f,V2.1= OmBd02–=5.820.035.13Bd
ecnereffidniagegatloV ∆GV VCC V,zHk1=f,V2.1= OmBd02–=0.1Bd
LA4537M
No.2333–2/3
Continued from preceding page.
Note) The quiescent current is respresented by the current flowing into pin 6. The respective maximum currents flowing
into pin 1 and pin 10 are calculated by (pin voltage –0.5) / 16 [V/kΩ] and the total current increases by these
current values.
Equivalent Circuit Block Diagram
Test Circuit
retemaraPlobmySsnoitidnoC sgnitaR tinU
nimpytxam
noitrotsidcinomrahlatoTDHTV
CC P,zHk1=f,V2.1= OWm5.0=5.05.1%
rewoptuptuOP
OVCC %01=DHT,zHk1=f,V5.1=58Wm
klatssorCTCV
CC k1=gR,zH001=f,V2.1= ΩV, OBd02–=0454Bd
noitcejerelppiRRRVS VCC k1=gR,zH001=f,V0.1= ΩV, R,mBd03–=
zH001=FPB 0464Bd
egatlovesiontuptuOV
ON VCC k1=gR,V5.2= ΩzHk02otzH02=FPB,5508Vµ
ytivitisnestnerrucnorewoPI
1)no(V
CC 5V,V58.0= ≥V5.01.00.1Aµ
ytivitisnesegatlovfforewoPV
1)ffo(V
CC 5V,V58.0= ≤V1.05.06.0V
ytivitisnestnerrucffognituMI
01 )ffo(V
CC 5V,V58.0= ≥V5.01.00.1Aµ
ytivitisnesegatlovnognituMV
01 )no(V
CC 5V,V58.0= ≤V1.05.06.0V
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 February, 2000. Specifications and information herein are subject
to change without notice.
LA4537M
PS No.2333–3/3
Sample Application Circuit 1
(Standard)
Sample Application Circuit 2
(Output capacitor shared)
