Ordering number : EN5969 Monolithic Linear IC LA5633 Satellite Broadcast (BS/CS) Tuner Regulator IC Overview Package Dimensions The LA5633 is a low-saturation regulator IC designed for use in satellite broadcast tuners (such as tuners for the Japanese BS and CS systems) and provides four controllable outputs. unit: mm 3023A-SIP14H [LA5633] Applications • Power supply systems in BS/CS tuners • Audio Video (AV) equipment that includes any type of satellite broadcast tuner • Miniature electronic equipment Functions • Built-in four regulators of low-saturation output (15.7 V/350 mA, 9 V/250 mA, 12 V/100 mA, 5 V/650 mA) • Output on/off control (active low) • On-chip thermal protection and overcurrent protection circuits SANYO: SIP14H Features • Provides all four voltages required by BS/CS tuners, and thus can contribute to end product miniaturization. • VO1 can be controlled independently, and VO2, VO3, and VO4 are controlled together, thus providing a high degree of flexibility in system design. • The adoption of a low-saturation regulator circuit reduces internal power dissipation. • Provides 3 inputs to make both low-power design and thermal design easy. 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 O3098RM (OT) No. 5969-1/7 LA5633 Specifications Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Input voltage VIN max VIN1 ≥ VIN2 ≥ VIN3 Enable pin voltage VEN max EN1, EN2 Allowable power dissipation Pd max Ratings V VIN max V With an arbitrarily large heat sink 15 W With no heat sink 4.3 θ j-c Junction to case thermal resistance Unit 35 W 3 °C/W °C/W Junction to atmosphere thermal resistance θ j-a 29.07 Operating temperature Topr –20 to +80 Storage temperature Tstg –55 to +150 °C Junction temperature Tj max 150 °C °C Operating Conditions at Ta = 25°C Parameter Symbol Output current Conditions Ratings Unit IO1 Regulator 1 5 to 350 mA IO2 Regulator 2 1 to 250 mA IO3 Regulator 3 1 to 100 mA IO4 Regulator 4 5 to 650 mA Operating Characteristics at Ta = 25°C in the stipulated test circuit Parameter Symbol Conditions Ratings min typ Unit max Regulator 1 [VEN1 = low, VO1: on, VIN1 = 20 V, VIN2 = 11 V, VIN3 = 7.0 V, IO1 = 350 mA Output voltage 1 Dropout voltage VO1 14.9 VDROP1-1 VDROP1-2 IO1 = 175 mA Line regulation ∆VOLN1 17.5 V ≤ VIN1 ≤ 23 V Load regulation ∆VOLD1 5 mA ≤ IO1 ≤ 350 mA Peak output current IOP1 Output short-circuit current IOSC1 350 Output on control voltage VENL1 VO1 : ON Output off control voltage VENH1 VO1 : OFF Output low-level voltage VO1 OFF Output noise voltage VNOISE1 Ripple rejection Rrej1 15.7 16.5 V 0.3 0.5 V 0.15 0.3 V 20 100 mV 40 200 mV 540 mA 150 mA 4.0 1.0 V VIN1 V 0.2 10 Hz ≤ f ≤ 100 kHz f = 120 Hz, 18 V ≤ VIN1 ≤ 23 V V 110 µVrms 50 dB Regulator 2 [VEN2 = low, VO2: on, VIN1 = 20 V, VIN2 = 11 V, VIN3 = 7.0 V, IO2 = 250 mA Output voltage 2 VO2 Dropout voltage VDROP2 Line regulation ∆VOLN2 10.45 V ≤ VIN2 ≤ 23 V Load regulation ∆VOLD2 1 mA ≤ IO2 ≤ 250 mA Peak output current IOP2 Output short-circuit current IOSC2 8.55 250 Output on control voltage VENL2 VO2 : ON Output off control voltage VENH2 VO2 : OFF Output low-level voltage VO2 OFF Output noise voltage VNOISE2 Ripple rejection Rrej2 9.0 9.45 0.3 0.5 V 20 100 mV 30 100 mV 270 mA 70 mA 4.0 1.0 V VIN2 V 0.2 10 Hz ≤ f ≤ 100 kHz f = 120 Hz, 11 V ≤ VIN2 ≤ 23 V V V 110 µVrms 50 dB Regulator 3 [VEN2 = low, VO3 on, VIN1 = 20 V, VIN2 = 11 V, VIN3 = 7.0 V, IO3 = 100 mA Output voltage 3 VO3 Dropout voltage VDROP3 Line regulation ∆VOLN3 13.6 V ≤ VIN1 ≤ 23 V Load regulation ∆VOLD3 1 mA ≤ IO3 ≤ 100 mA Peak output current IOP3 Output short-circuit current IOSC3 Output on control voltage VENL2 11.4 100 VO3 : ON 12.0 12.6 0.3 0.5 V V 20 100 mV 20 50 mV 150 mA 40 mA 1.0 V Continued on next page. No. 5969-2/7 LA5633 Continued from preceding page. Parameter Symbol Output off control voltage VENH2 Output low-level voltage VO3 OFF Output noise voltage VNOISE3 Ripple rejection Rrej3 Ratings Conditions min VO3 : OFF typ 4.0 Unit max VIN1 V 0.2 V 10 Hz ≤ f ≤ 100 kHz 70 µVrms f = 120 Hz, 14 V ≤ VIN1 ≤ 23 V 55 dB Regulator 4 [VEN2 = low, VO4: on, VIN1 = 20 V, VIN2 = 11 V, VIN3 = 7.0 V, IO4 = 650 mA Output voltage 4 VO4 Dropout voltage 5.0 5.25 V VDROP4-1 4.75 0.3 0.5 V VDROP4-2 IO1 = 325 mA 0.2 0.4 V 20 100 mV 30 150 mV Line regulation ∆VOLN4 6.25 V ≤ VIN3 ≤ 23 V Load regulation ∆VOLD4 5 mA ≤ IO4 ≤ 650 mA Peak output current IOP4 Output short-circuit current IOSC4 650 Output on control voltage VENL2 VO4 : ON Output off control voltage VENH2 VO4 : OFF Output low-level voltage VO4 OFF Output noise voltage VNOISE1 Ripple rejection mA 250 mA 4.0 1.0 V VIN3 V 0.2 10 Hz ≤ f ≤ 100 kHz 70 V µVrms f = 120 Hz, 7 V ≤ VIN3 ≤ 23 V 60 dB IQ1 IO1, IO2, IO3, IO4 = 0 11 mA IQ2 IO1 = 350 mA, IO2 = 250 mA, IO3 = 100 mA, IO4 = 650 mA 65 mA Rrej4 Current drain 900 Pin Assignment With infinite heat sink No heat sink Ambient temperature, Ta — °C Aluminum heat sink Mounting torque: 39 N·cm With silicon grease applied Heat sink thermal resistance, θf – °C/W Allowable power dissipation, Pdmax — W Note: NC pins must not be used (Pins 1 and 14 in the pin assignment figure.) Aluminum heat sink (t = 1.5 mm) Mounting torque: 39 N·cm With silicon grease applied Heat sink area, Sf — cm2 No. 5969-3/7 LA5633 Block Diagram Regulator 1 Regulator 2 Regulator 3 Input voltage detection Startup and reference voltage circuits Regulator 4 TSD: Thermal shutdown (protection) circuit ON/OFF: Output on/off control circuit CL: Current limiter (overcurrent protection circuit) No. 5969-4/7 LA5633 Stipulated Test Circuit Function Table This IC operates as listed in the table under the condition that VIN1 ≥ VIN2 ≥ VIN3. EN1, EN2 VO1, VO2/VO3/VO4 H L L H Open H • H and L in the EN column correspond to high and low input voltage levels, respectively. • H and L in the VO column correspond to the output on voltage and the output off voltage, respectively. • The output voltages are controlled independently by the EN lines as follows: EN1 controls VO1, and EN2 controls VO2, VO3, and VO4 in parallel. • When a given EN is open, the corresponding output will be on. No. 5969-5/7 LA5633 EN (on/off control) Input Block Equivalent Circuit Block Diagram Control signal Control signal Control signal Control signal Usage Notes • GND1 and GND2 are connected through the IC substrate, and must be connected to the lowest potential in the system and must be connected to identical potentials. (The functions and characteristics of this IC are not guaranteed if GND1 and GND2 are connected to different potentials.) • The rise and fall of the VIN1, VIN2, and VIN3 voltages must be simultaneous, and none of these pins may be either left open or connected to ground. • If either VIN1 or VIN2 are open or at a voltage lower than the stipulated voltage, then the VO1 through VO4 outputs will be forcibly turned off to protect the IC. • The output capacitors CO1 and CO4 must be at least 100 µF, and CO2 and CO3 must be at least 47 µF. Capacitors with low temperature coefficients must be use to prevent oscillation at low temperatures. • To assure stable operation, the input capacitors CIN1 to CIN3 and the output capacitors CO1 to CO4 must be placed as close to the IC as possible. • The NC pins (pins 1 and 14) must not be used. • The output voltage VO4 can be adjusted by connecting resistors from the CN pin (pin 11) to either VO4 or to GND2. — To lower VO4: Add resistor RA between CN and VO4. — To raise VO4: Add resistor RB between CN and GND2. Also note that external noise suppression and ripple rejection can be improved by adding an external capacitor at VO4. However, care is required to assure that the system stability (phase margin) is adequate. • Note that these power supplies can be influenced by load fluctuations in the other power supplies. Sample CN Pin Application Circuit ≈ ≈ No. 5969-6/7 LA5633 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 October, 1998. Specifications and information herein are subject to change without notice. PS No. 5969-7/7