L78MS05J_06

Ordering number : EN7161 L78MS05J L78MS05JSMP Overview Monolithic Linear IC 5V Constant-Voltage Power Supply with Strobe Line The L78MS05J and L78MS05JSMP are general-purpose constant voltage power supplies that feature an output current of 500mA and a built-in on/off function. The current drain in the output off state is low, making these devices effective for reducing power consumption in application equipment. The surface mounting package can contribute to miniaturization and improved efficiency. These devices are optimal for use in all types of AV and OA equipment and in automotive applications (such as power supplies for meters) as well. Functions • Strobe pin that controls the on/off state of the output voltage (active low input). • 500mA output current. Features • TO-220-5H package for easier mounting and thermal design (L78MS05J). • SMP5 package for easier mounting and thermal design (L78MS05JSMP). • Low output off state current drain makes these devices optimal for saving power in applications. • Full complement of built-in protection circuits (current limiter and thermal protection circuit). Specifications Maximum Ratings at Ta = 25°C Parameter Maximum input voltage Maximum strobe pin voltage Symbol VIN max VST max Conditions Ratings 35 VIN max Unit V V Continued on next page. Any and all SANYO Semiconductor 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 Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor 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 products described or contained herein. 92706 / 10606 MS OT B8-5886 No.7161-1/7 L78MS05J/L78S05JSMP Continued from preceding page. Parameter Allowable power dissipation Symbol Pd max Conditions L78MS05J - independent IC L78MS05J SMP *: When mounted on the stipulated circuit board 1 *: When mounted on the stipulated circuit board 2 Ratings 1.75 3.9 Unit W W 2.0 W Operating temperature Operating temperature Topr Tstg -40 to +85 -58 to +150 °C °C *: Stipulated circuit board 1: 76.1×114.3×1.6mm³ Cooper foil ratio: 60% FR4 Heat sink fin mounting area pattern: 23% [2000mm²] Allowable Operating Conditions at Ta = 25°C Parameter Input voltage Output current Output on control voltage Output off control voltage Symbol VIN LOUT VSTL VSTH *: Stipulated circuit board 2: 140×300×1.6mm³ Cooper foil ratio: 60% FR4 Conditions Ratings 7.5 to 20.0 0 to 500 -0.3 to 0.8 2.0 to VIN Unit V mA V mA Electrical Characteristics at Ta = 25°C, VIN = 10V, IOUT = 350mA Parameter Symbol Conditions min [Output On State, VST = low] Output voltage 1 Line regulation 1 Line regulation 2 Load regulation 1 Load regulation 2 Output voltage 2 Current drain Output noise voltage Ripple rejection VOUT1 ∆VOLN1 ∆VOLN2 ∆VOLD1 ∆VOLD2 VOUT2 IQ VNO Rrej1 Rrej2 Minimum input to output voltage drop Output on control voltage Short circuit current Peak output current IOSC IOP VIN = 35V, for GND 300 700 mA mA VSTL 0.8 V Vdrop 10Hz ≤ f ≤ 100kHz f = 120Hz, 8V ≤ VIN ≤ 19V, IOUT = 100mA f = 120H, 8V ≤ VIN ≤ 19V, IOUT = 300mA IOUT = 350mA 60 60 7V ≤ VIN ≤ 25V, IOUT = 200mA 8V ≤ VIN ≤ 20V, IOUT = 200mA 5mA ≤ IOUT ≤ 500mA 5mA ≤ IOUT ≤ 200mA 7V ≤ VIN ≤ 20V, 5mA ≤ IOUT ≤ 350mA 4.75 1.9 90 63 54 2.0 4.8 5.0 3 1 5.2 50 25 100 50 5.25 5.0 V mV mV mV mV V mA µVrms dB dB V Ratings typ max Unit [Output Off State, VST = high] Low-level output voltage Quiescent current Output off control voltage [Thermal Protection] Operating temperature TTSD Design target value* 150 180 °C IQOFF VSTH VST = 5V, except for ISTB 2.0 35 40 VIN µA V VOOFF VST = 5V 20 200 mV * This rating is a design target value and is not measured. No.7161-2/7 L78MS05J/L78S05JSMP Package Dimensions unit : mm 3079A [L78MS05J] 3275 [L78MS05JSMP] [L78MS05J] [L78MS05JSMP] Pin Arrangement [L78MS05J] [L78MS05JSMP] L78MS05J L78MS05J 1:VIN 2:NC 3:GND 1 5 4:STB 5:VOUT 1 5 1:VIN 2:NC 3:GND 4:STB 5:VOUT Top view Top view Note: NC pins must not be used (Pin number 2 in the pin arrangement) No.7161-3/7 L78MS05J/L78S05JSMP Block Diagram Stipulated Test Circuits Application Notes Notes: 1. CIN and COUT must be located as close as possible to the IC to stabilize IC operation. 2. COUT must be 0.1µF or larger, and a capacitor (such as a tantalum capacitor) with a low temperature coefficient must be used to prevent oscillation at low temperatures. 3. If the STB pin is open, the internal bias will result in the output going to the on state. If the STB function is not used, the STB pin must be connected to ground to complete the STB operation. 4. Note that a large current will flow if the IC is connected in reverse, that is, if VIN is connected to - and GND is connected to +. No.7161-4/7 L78MS05J/L78S05JSMP Function Table VOUT VSTB Low High VOUT High Low VSTB 0 t 0 t ON/OFF Control Input Block Equivalent Circuit Diagram No.7161-5/7 L78MS05J/L78S05JSMP No.7161-6/7 L78MS05J/L78S05JSMP Specifications of any and all SANYO Semiconductor 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 Semiconductor 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 Semiconductor 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 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 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 Semiconductor 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 January, 2006. Specifications and information herein are subject to change without notice. PS No.7161-7/7