Ordering number : ENN8319 Monolithic Linear IC LA5160AM 5V/0.1A Constant-voltage Power Supply IC with Output ON/OFF Feature Overview The LA5160AM is a general-purpose constant-voltage power supply IC incorporating the output ON/OFF function, which offers advantages such as small current drain when output OFF and saves power dissipation of the equipment. Functions & Features • Output voltage ON/OFF control with the strobe pin (active, low) • Output current of 100mA obtainable • Small current drain when output OFF and optimum for power saving • MFP8 package, ensuring easy mounting design • Full compliment of protection circuits incorporated (including overcurrent protection, thermal protection) Specifications Maximum Ratings at Ta=25°C Parameter Input Voltage Symbol Conditions Ratings Unit 40 VIN max V Strobe Pin Voltage VST max VIN max V Allowable Power Dissipation 1 Pd max1 Independent IC 0.3 W Allowable Power Dissipation 2 Pd max2 * Mounted on a specified board 0.8 W Operating Temperature Topr -40 to +125 °C Storage Temperature Tstg -55 to +150 °C * Specified board: 114.3mm×76.1mm×1.6mm Board material: glass epoxy Recommended Operating Conditions at Ta=-40°C • +25°C • +125°C Parameter Symbol Conditions Ratings Unit 7.5 to 20 V IOUT 0 to 100 mA VSTL -0.3 to 0.7 V VSTH 2.0 to VIN V Input Voltage VIN Output Current Output ON Control Voltage Output OFF Control Voltage 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 / 61005 MH IM B8-8587 No.8319-1/6 LA5160AM Operation Characteristics at Ta=-40°C • +25°C • +125°C, unless otherwise specified, VIN=10V and IOUT=50mA in the specified test circuit Parameter Symbol Ratings Conditions min typ 5.0 5.2 V 7V ≤ VIN ≤ 25V, IOUT=20mA 3 50 mV ∆VOLN2 8V ≤ VIN ≤ 20V, IOUT=20mA 1 ∆VOLD1 1mA ≤ IOUT ≤ 50mA Load Regulation 2 ∆VOLD2 1mA ≤ IOUT ≤ 20mA Output Voltage 2 VOUT2 7V ≤ VIN ≤ 20V, 1mA ≤ IOUT ≤ 50mA Current Dissipation IQ Output Noise Voltage VNO Output Voltage 1 VOUT1 Line Regulation 1 ∆VOLN1 Line Regulation 2 Load Regulation 1 4.8 Unit max 4.75 1.9 10Hz ≤ f ≤ 100kHz Minimum I/O Voltage Difference Vdrop Output ON Control Voltage VSTL Short-Circuit Current IOSC Peak Output Current IOP 50 mV 5.25 V 5.0 mA 60 63 dB 50 54 dB IOUT=50mA 2.0 V VIN=35V, relative to GND 300 mA 700 mA f=120Hz Rrej2 mV µVrms 8V≤VIN≤19V IOUT=10mA Ripple Rejection mV 90 f=120Hz Rrej1 25 100 8V ≤ VIN ≤ 19V IOUT=50mA 0.7 V [ VST="H" when the output is OFF ] Parameter Symbol Ratings Conditions min typ Unit max "L" Output Voltage VOOFF VST=5V 20 200 mV Quiescent Current IQOFF Excluding VST=5V and ISTB 35 40 µA Output OFF Control Voltage VSTH VIN V 2.0 Thermal protection Parameter Symbol Ratings Conditions min Operating Temperature * TTSD 150 typ 180 Unit max °C Note : The value with an asterisk mark for thermal protection is the design target value and no measurement is made. Pin Assignment NC 1 8 NC VIN 2 7 VOUT LA5160AM NC 3 6 NC GND 4 5 STB Top view Note: Do not use NC pins (Pin Nos. 1, 3, 6, and 8) No.8319-2/6 LA5160AM Package Dimensions unit : mm 3032D Equivalent Circuit Block Diagram VIN 2 Reference voltage Startup circuit ASO protection 7 Error amplifier VOUT ON/OFF control Thermal protection GND 4 STB 5 No.8319-3/6 LA5160AM Specified Test Circuit Diagram NC 1 8 NC VIN VOUT NC 7 LA5160AM 6 3 COUT=0.1µF CIN=0.33µF 2 NC 5 4 STB GND Cautions for application Note : 1) To stabilize the operation, arrange CIN and COUT as near as possible to the IC. 2) COUT must have 0.1µF or more, with less capacitance fluctuation due to temperature, so as to prevent oscillation at low temperature (such as a tantalum capacitor, etc.). 3) With the STB pin OPEN, the internal bias causes the output in the ON state. When the STB function is not to be used, connect the STB pin to GND to ensure trouble-free operation of STB. 4) Note that wrong connection, such as connection of VIN to minus and GND to plus, may cause flow of the overcurrent. Function Table VSTB VOUT L H H L VOUT 0 t VSTB 0 t Equivalent Circuit for ON/OFF Control Input, etc. 50kΩ STB 50kΩ 300Ω 50kΩ 5 No.8319-4/6 LA5160AM The values shown in the characteristics diagrams are all typical values. No.8319-5/6 LA5160AM 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. 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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 June, 2005. Specifications and information herein are subject to change without notice. PS No.8319-6/6