SI-3011ZF-TL

SI-3011ZF High-Current, Low-Dropout, 1.1 to 5 V Regulator Description ▪ 3 A Output Current ▪ 0.7 V Maximum Dropout Voltage at IO = 3 A ▪ 1 μA Maximum Standby Current ▪ Adjustable 1.1 to 5 V Output Voltage ▪ Remote Voltage Sensing ▪ Foldback Current Limiting ▪ Thermal Protection Designed to meet the high-current requirements in industrial and consumer applications; embedded core, memory, or logic supplies; TVs, VCRs, and office equipment, the SI-3011ZF voltage regulator offers the reduced dropout voltage and low quiescent current essential for improved efficiency. This device delivers a regulated output at up to 3 A. Integrated thermal and overcurrent protection enhance overall system reliability. Devices with fixed output voltages of 2.5 V or 3.3 V are also available. Quiescent current does not increase significantly as the dropout voltage is approached, an ideal feature in standby/resume power systems where data integrity is crucial. Regulator accuracy and excellent temperature characteristics are provided by a bandgap reference. An LS-TTL/CMOS-compatible input gives the designer complete control over power up, standby, or power down. A pnp pass element provides a dropout voltage of less than 700 mV at 3 A of load current. Low output voltages eliminate the need for expensive PWM buck converters. The low dropout voltage permits more efficient regulation before output regulation is lost. This device is supplied in a fully molded TO-220-style 5-lead flange-mounted, high power, isolated plastic package. A similar device in a lower-power surface-mount plastic package is the SI-3011ZD. es ig ns Features and Benefits Applications rN ew D ▪ TVs, VCRs, Electronic Games ▪ Embedded Core, Memory, or Logic Supplies ▪ Printers and Other Office Equipment ▪ Industrial Machinery ▪ Secondary-Side Stabilization of Multi-Output SMPS en de d fo Package: 5-pin TO-220 ec o m m Not to scale N ot R Pin-Out Diagram SI-3011ZF 1 2 3 4 5 ENABLE INPUT GND OUTPUT SENSE VR SANKEN ELECTRIC CO., LTD. http://www.sanken-ele.co.jp/en/ High-Current, Low-Dropout, 1.1 to 5 V Regulator SI-3011ZF Selection Guide Part Number SI-3011ZF Absolute Maximum Ratings Output Current IO Enable Input Voltage VE TJ Tstg Rating Units 10 V 3 A 6 V Output current rating is limited by input voltage, duty cycle, and ambient temperature. Under any set of conditions, do not exceed a junction temperature of +125°C. 125 ºC –40 to 125 ºC fo Junction Temperature Storage Temperature Notes ew VI D Symbol rN Characteristic Input Voltage es ig ns For the availability of parts meeting –40°C requirements, contact a Sanken Sales Representative. VI DC Output Current IO Adjustable Voltage Range VADJ Operating Junction Temperature m DC Input Voltage de Symbol Conditions en Characteristic d Recommended Operating Conditions Max. Unit – 6 V 0 3 A 1.2 5 V –20 100 °C ec o m TJ Min. N ot R Allowable Package Power Dissipation SI-3011ZF SANKEN ELECTRIC CO., LTD. 2 High-Current, Low-Dropout, 1.1 to 5 V Regulator SI-3011ZF N ot R ec o m m en de d fo rN ew D es ig ns Functional Block Diagram SI-3011ZF SANKEN ELECTRIC CO., LTD. 3 High-Current, Low-Dropout, 1.1 to 5 V Regulator SI-3011ZF ELECTRICAL CHARACTERISTICS at TA = 25°C, VO = 2.5 V adjusted, VE = 2V, unless otherwise noted Typ.1 Max. Unit VI = VO(nom) + 1 V, IO = 10 mA – VO(nom) – Output Voltage V VO(off) VE = 0 V – – 0.5 V – ±0.3 – mV/°C aVO 0°C ≤ TJ ≤ 100°C Internal Reference Voltage Vref VI = VO(nom) + 1 V , IO = 10 mA Output Short-Circuit Current2 IOM VI = VO(nom) + 1 V Line Regulation ∆VO(∆VI) VI = 3.0 to 5.0 V, IO = 10 mA Load Regulation ∆VO(∆IO) VI = 3.3 V, IO = 0 to 3.0 A Dropout Voltage VI(min) – VO IO = 3.0 A Enable Input Current Ripple Rejection Ratio VEH Output on VEL Output off IEH VE = 2.7 V IEL VE = 0 V PSRR VI = VO(nom) + 1 V, 100 Hz ≤ f ≤ 120 Hz TJ de Thermal Shutdown rN Enable Input Voltage VI = VO(nom) + 1 V, IO = 0 mA, VE = 2.0 V VI = VO(nom) + 1 V, VE = 0 V fo IGND d Ground Terminal Current 1.078 1.122 V – – A – – 10 mV – – 40 mV – – 0.7 V – 1.0 1.5 mA – – 1.0 μA 2.0 – – V – – 0.8 V – – 100 μA – 0 –5.0 μA – 60 – dB 135 152 – °C values are given for circuit design information only. 2Output short-circuit current is at the point where output voltage has decreased 5% below V O(nom). N ot R ec o m m en 1Typical 1.100 3.2 D Output Voltage Temperature Coefficient es ig VO Test Conditions ns Min. Symbol ew Characteristics SI-3011ZF SANKEN ELECTRIC CO., LTD. 4 High-Current, Low-Dropout, 1.1 to 5 V Regulator SI-3011ZF Typical Characteristics (VO = 2.5 V adjust, TA = 25°C) Low-Voltage Behavior Line Regulation Load Regulation GND Pin Current Overcurrent Protection R ec o m m en de d fo rN ew D es ig ns Dropout Voltage ENABLE Control Current Thermal Protection N ot ENABLE Control Voltage SI-3011ZF SANKEN ELECTRIC CO., LTD. 5 High-Current, Low-Dropout, 1.1 to 5 V Regulator Output Capacitor (CO , > 47 μF). This device is not designed for a use with a very low ESR output capacitor such as a ceramic capacitor. Output oscillation may occur with that kind of capacitor. Output Voltage Adjustable Resistors (R1 and R2). The output voltage is adjusted by R1 and R2. 10 kΩ or Heat Radiation and Reliability. The reliability of the IC is directly related to the junction temperature ( TJ ) in its operation. Accordingly, careful consideration should be given to heat dissipation. The graph on page 2 illustrates the effect of thermal resistance on the allowable package power dissipation. The junction temperature ( TJ ) can be determined from either of the following equations: ns Input Capacitor (CI , approximately 10 μF). This is necessary either when the input line includes inductance or when the wiring is long. TJ = ( PD × RθJA ) + TA es ig SI-3011ZF or 11 kΩ for R2 is recommended. TJ = ( PD × RθJC ) + TC where For an output voltage of 1.8 V or less, add a 10 kΩ resistor between ADJ and the junction of R1 and R2. PD = IO × ( VI – VO ) and D R1 = ( VO – Vref ) / ( Vref / R2) rN Parallel Operation. Parallel operation to increase load current is not permitted. fo Determination of DC Input Voltage. The minimum input voltage VI(min) should be higher than the sum of the fixed output voltage and the maximum rated dropout voltage. If setting the output voltage lower than 2.0 V, the minimum input voltage should be more than 2.4 V. ew RθJC = 5 °C/W. en de d Overcurrent Protection. The SI-3000ZD series has a built-in fold-back type overcurrent protection circuit, which limits the output current at a start-up mode. It thus cannot be used in applications that require current at the start-up mode such as: (1) constant-current load, m m (2) power supply with positive and negative outputs to common load (a center-tap type power supply), or ec o (3) raising the output voltage by putting a diode or a resistor between the device ground and system ground. N ot R Thermal Protection. Circuitry turns off the pass transistor when the junction temperature rises above 135°C. It is intended only to protect the device from failures due to excessive junction temperatures and should not imply that output short circuits or continuous overloads are permitted. SI-3011ZF SANKEN ELECTRIC CO., LTD. 6 High-Current, Low-Dropout, 1.1 to 5 V Regulator SI-3011ZF N ot R ec o m m en de d fo rN ew D es ig ns Dimensions in Millimeters Terminal Finish: Sn–3Ag–0.5Cu, 2nd level interconnect category (e1) Product Weight: Approx. 2.3 g Terminal spacing is measured at lead tips. SI-3011ZF SANKEN ELECTRIC CO., LTD. 7 High-Current, Low-Dropout, 1.1 to 5 V Regulator • Our recommended silicone greases for heat radiation purposes, which will not cause any adverse effect on the product life, are indicated below: Suppliers ns Type YG6260 SC102 Shin-Etsu Chemical Co., Ltd. es ig G746 Momentive Performance Materials LLC Dow Corning Toray Co., Ltd. rN ew D Soldering • When soldering the products, please be sure to minimize the working time, within the following limits: 260±5°C 10 s 380±5°C 5s • Soldering should be at a distance of at least 1.5 mm from the body of the product. Electrostatic Discharge • When handling the products, the operator must be grounded. Grounded wrist straps worn should have at least 1 MΩ of resistance from the operator to ground to prevent shock hazard, and it should be placed near the operator. • Workbenches where the products are handled should be grounded and be provided with conductive table and floor mats. • When using measuring equipment such as a curve tracer, the equipment should be grounded. • When soldering the products, the head of soldering irons or the solder bath must be grounded in order to prevent leak voltages generated by them from being applied to the product. • The product should always be stored and transported in Sanken shipping containers or conductive containers, or be wrapped in aluminum foil. N ot R ec o m m en de d Because reliability can be affected adversely by improper storage environments and handling methods, please observe the following cautions. Cautions for Storage • Ensure that storage conditions comply with the standard temperature (5°C to 35°C) and the standard relative humidity (around 40% to 75%); avoid storage locations that experience extreme changes in temperature or humidity. • Avoid locations where dust or harmful gases are present and avoid direct sunlight. • Reinspect for rust on leads and solderability of the products that have been stored for a long time. Cautions for Testing and Handling • When tests are carried out during inspection testing and other standard test periods, protect the product from power surges from the testing device, shorts between adjacent product packages, and shorts to the heatsink. • The screwing torque for attaching a heatsink shall be 58.8 to 68.6 N•cm (6.0 to 7.0 kgf•cm). • Ensure there are no foreign objects between the heatsink and thermal pad; only silicone thermal grease is allowed. Remarks About Using Silicone Grease with a Heatsink • When silicone grease is used in mounting this product with a heatsink, grease shall be applied evenly and thinly. If more silicone grease than required is applied, it may produce stress. • Volatile-type silicone greases may permeate the product and produce cracks after long periods of time, resulting in reduced heat radiation effect, and possibly shortening the lifetime of the product. • Hard silicone greases may cause cracks in the product when screwing the product to a heatsink. fo SI-3011ZF SI-3011ZF SANKEN ELECTRIC CO., LTD. 8 High-Current, Low-Dropout, 1.1 to 5 V Regulator D es ig ns SI-3011ZF ew • The contents in this document are subject to changes, for improvement and other purposes, without notice. Make sure that this is the latest revision of the document before use. rN • Application and operation examples described in this document are quoted for the sole purpose of reference for the use of the products herein and Sanken can assume no responsibility for any infringement of industrial property rights, intellectual property rights or any other rights of Sanken or any third party which may result from its use. d fo • Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of semiconductor products at a certain rate is inevitable. Users of Sanken products are requested to take, at their own risk, preventative measures including safety design of the equipment or systems against any possible injury, death, fires or damages to the society due to device failure or malfunction. de • Sanken products listed in this document are designed and intended for the use as components in general purpose electronic equipment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.). m en When considering the use of Sanken products in the applications where higher reliability is required (transportation equipment and its control systems, traffic signal control systems or equipment, fire/crime alarm systems, various safety devices, etc.), and whenever long life expectancy is required even in general purpose electronic equipment or apparatus, please contact your nearest Sanken sales representative to discuss, prior to the use of the products herein. ec o m The use of Sanken products without the written consent of Sanken in the applications where extremely high reliability is required (aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited. ot R • In the case that you use Sanken products or design your products by using Sanken products, the reliability largely depends on the degree of derating to be made to the rated values. Derating may be interpreted as a case that an operation range is set by derating the load from each rated value or surge voltage or noise is considered for derating in order to assure or improve the reliability. In general, derating factors include electric stresses such as electric voltage, electric current, electric power etc., environmental stresses such as ambient temperature, humidity etc. and thermal stress caused due to self-heating of semiconductor products. For these stresses, instantaneous values, maximum values and minimum values must be taken into consideration. N In addition, it should be noted that since power devices or IC's including power devices have large self-heating value, the degree of derating of junction temperature affects the reliability significantly. • When using the products specified herein by either (i) combining other products or materials therewith or (ii) physically, chemically or otherwise processing or treating the products, please duly consider all possible risks that may result from all such uses in advance and proceed therewith at your own responsibility. • Anti radioactive ray design is not considered for the products listed herein. • Sanken assumes no responsibility for any troubles, such as dropping products caused during transportation out of Sanken's distribution network. • The contents in this document must not be transcribed or copied without Sanken's written consent. SI-3011ZF SANKEN ELECTRIC CO., LTD. 9