 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Ordering number : ENA0495A Monolithic Linear IC LA5777MP Overview Separately-excited Step-down Switching Regulator (5V) The LA5777MP is a Separately-excited step-down switching regulator (5V). Functions * High efficiency. * Six external parts. * Time-base generator (160kHz) incorporated. * Current limiter incorporated. * Thermal shutdown circuit incorporated. * ON/OFF function. Specifications Absolute Maximum Ratings at Ta = 25C Parameter Maximum Input voltage Maximum Output current SW pin application reverse voltage Allowable power dissipation Operating temperature Storage temperature Symbol VIN max IO max VSW Pd max Topr Tstg Mounted on a substrate.* Conditions Ratings 30 3 -1 3.9 -30 to +125 -40 to +150 Unit V A V W C C * Specified substrate : 76.1x114.3x1.6mm3 : Copper foil ratio 60 FR4 Recommended Operating Conditions at Ta = 25C Parameter Input voltage range Symbol VIN Conditions Ratings 8 to 28 Unit V Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. 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. 31407 MS PC / N1306 MS PC 20060420-S00004 No.A0495-1/4 LA5777MP Electrical Characteristics at Ta = 25C, VO = 3.3V Parameter Reference voltage Efficiency Switching frequency Switching frequency when short-circuit protection is active Line regulation Load regulation Output voltage temperature coefficient Ripple attenuation factor Output leak current Current limiter operating voltage Operating current Standby current ENA pin LOW voltage range ENA pin HIGH voltage range Thermal shutdown operating temperature Thermal shutdown Hysteresis width * Design target value: No measurement made. TSD Designed target value. * 15 C RREJ IOleak IS IVIN ISTBY VENAL VENAH TSD Designed target value. * 2.4 165 f = 100 to 120Hz VIN = 15V, SWOUT = -1V VIN = 15V VIN = 15V VIN = 15V, ENA = 5V 3.1 5.6 50 100 0.6 VIN 45 50 dB A A mA A V V C VOLINE VOLOAD VO/Ta VIN = 8 to 20V, IO = 1.0A VIN = 15V, IO = 0.5 to 1.5A Designed target value. * 40 10 0.5 100 30 mV mV mV/C Symbol VO f fshort Conditions min VIN = 15V, IO = 1.0A VIN = 15V, IO = 1.0A VIN = 15V, IO = 1.0A VIN = 15V, VOS = 0V 128 15 4.80 Ratings typ 5.00 84 160 30 192 45 max 5.20 V % kHz kHz Unit Package Dimensions unit : mm (typ) 3275 4.5 Pd max - Ta 1.2 10.0 4.5 1.3 Allowable power dissipation, Pd max - W 4.0 3.90 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 -30 -20 Specified sbstrate: 76.1x114.3x1.6mm3 Copper foil ratio 60% FR4 (8.8) 9.9 (1.6) 1.7 0.9 0.4 4.5 1.5 0.2 2.7 1 5 SANYO : SMP5 0 20 40 60 80 100 120 140 160 Ambient temperature, Ta - C MSG06072 Pin Assignment (1) VIN (2) SWOUT (3) GND (4) VOS (5) ENA No.A0495-2/4 LA5777MP Block Diagram VIN 1 Reg. OCP 2 SWOUT OSC Reset Drive Comp. THD 4 VOS VREF Amp. 5 ENA 3 GND Application Circuit Example L1 47H VIN SWOUT LA5777MP C1 470F 50V D1 SBD C2 390F VOS ENA GND Note: ENA pin starts operation with LOW voltage input. No.A0495-3/4 LA5777MP SANYO Semiconductor Co.,Ltd. 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 Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents 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 Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require 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 consent of SANYO Semiconductor 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 Semiconductor Co.,Ltd. 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. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of March, 2007. Specifications and information herein are subject to change without notice. PS No.A0495-4/4 |
Price & Availability of LA5777MP
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |