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Ordering number : ENN4281
Monolithic Linear IC
LA5602
Low-Dropout Voltage Regulator with Reset and On-Off Function
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.
Package Dimensions
unit : mm 3075-SIP7H
[LA5602]
18.0 3.4 3.0
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)
13.4 10.8 15.0 max 1.0 min
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
1
1.38 2.54 0.6
7
1.0 0.6 1.2
5.8
SANYO: SIP7H
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 Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
D2599TH (OT)/10293TS A8-8788, A8-9716 No.4281-1/5
LA5602
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum input voltage Enable pin voltage Reset output pin voltage Allowable power dissipation Operating temperature Storage temperature Symbol VIN max VEN max VRES max Pd max Topg Tstg Conditions Ratings 18 VIN max 18 1.5 -30 to +80 -55 to +150 Unit V V V W C C
Operating Conditions at Ta = 25C
Parameter Input voltage Output current Reset output source current Reset output synch current Symbol VIN IOUT IORH IORL Conditions Ratings 5.6 to 17 0 to 350 0 to 200 0 to 2 Unit V mA A mA
Operating Characteristics at Ta = 25C, VIN = 8 V, IOUT = 350 mA, COUT = 47F, according to specified Test Circuit
Parameter [Power Supply Section] Output voltage Drop-out voltage Line regulation Load regulation Peak output current Output short current Current dissipation Output noise voltage Temperature coefficient of output voltage Ripple rejection Output on-control voltage Output off-control voltage Low output voltage [Reset Section] High reset output voltage Low reset output voltage Reset threshold voltage Reset hysteresis voltage Reset output delay time VORH VORL VRT Vhys td Cd = 0.1F IORH = 200A, Cd pin open ISRL = 2mA, Cd - GND shorted 3.95 50 7.5 4.73 4.98 100 4.2 100 10 5.23 200 4.45 200 12.5 V mV V mV ms VOUT VDROP VOLN VOLD IOP IOSC IQ1 IQ2 VN5 VO/Ta Rref VENH VENL VO OFF 10Hzf100kHz Tj = 25 to 125C f = 120Hz, 6VVIN17V 2.6 1.0 0.3 IOUT = 0 5.6VIN17V 5mAIO350mA 350 4.75 5.0 0.5 20 50 500 100 2.1 10 70 1.6 60 400 4 50 5.25 1.0 100 150 V V mV mV mA mA mA mA Vrms mV/C dB V V V Symbol Conditions Ratings min typ max Unit
No. 4281-2/5
LA5602 Equivalent Circuit Block Diagram
Specified Test Circuit
Application Circuit Example
Notes: 1) Capacitors Cn and CRES are only required if problems are experienced with noise from external sources. If capacitor Cn is present, ensure that CO is at least more than one-third of the value of Cin in order to prevent output noise at power-down due to capacitor discharge timing. 2) Use a low temperature coefficient capacitor for the delay time capacitor Cd. 3) The minimum recommended value of output capacitor Co is 47F.
No. 4281-3/5
LA5602 Function Table
Reset Operation
No. 4281-4/5
LA5602
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 December, 1999. Specifications and information herein are subject to change without notice. PS No. 4281-5/5

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