LM330 LM330 3-Terminal Positive Regulator Literature Number: SNOSC19C LM330 3-Terminal Positive Regulator General Description The LM330 5V 3-terminal positive voltage regulator features an ability to source 150 mA of output current with an inputoutput differential of 0.6V or less. Familiar regulator features such as current limit and thermal overload protection are also provided. The low dropout voltage makes the LM330 useful for certain battery applications since this feature allows a longer battery discharge before the output falls out of regulation. For example, a battery supplying the regulator input voltage may discharge to 5.6V and still properly regulate the system and load voltage. Supporting this feature, the LM330 protects both itself and regulated systems from negative voltage inputs resulting from reverse installations of batteries. Other protection features include line transient protection up to 26V, when the output actually shuts down to avoid dam- aging internal and external circuits. Also, the LM330 regulator cannot be harmed by a temporary mirror-image insertion. Features n n n n n n n n Input-output differential less than 0.6V Output current of 150 mA Reverse battery protection Line transient protection Internal short circuit current limit Internal thermal overload protection Mirror-image insertion protection P+ Product Enhancement tested Schematic and Connection Diagrams 00930601 (TO-220) Plastic Package 00930602 Front View Order Number LM330T-5.0 See NS Package Number T03B © 2004 National Semiconductor Corporation DS009306 www.national.com LM330 3-Terminal Positive Regulator May 1998 LM330 Absolute Maximum Ratings (Note 1) Internal Power Dissipation If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Operating Temperature Range Internally Limited 0˚C to +70˚C Maximum Junction Temperature +125˚C Storage Temperature Range Input Voltage −65˚C to +150˚C Lead Temperature Operating Range 26V Line Transient Protection (1000 ms) (Soldering, 10 sec.) +300˚C 40V Electrical Characteristics (Note 2) Symbol Vo ∆Vo Parameter Output Voltage Min Typ Max Tj = 25˚C Conditions 4.8 5 5.2 4.75 Output Voltage 5 < Io < 150 mA Over Temp 6 < VIN < 26V; 0˚C ≤ Tj ≤ 100˚C Line Regulation 9 < VIN < 16V, Io = 5 mA 7 25 6 < VIN < 26V, Io = 5 mA 30 60 5 < Io < 150 mA 14 50 Io = 10 mA 3.5 Load Regulation Long Term Stability IQ ∆IQ Quiescent Current 5.25 20 5 11 18 40 VIN = 40V, RL = 100Ω, 1s 14 VIN = −6V, RL = 100Ω −80 Quiescent Current 6 < VIN < 26V 10 mV mV/1000 hrs Io = 150 mA Line Transient V 7 Io = 50 mA Reverse Polarity Units mA % Change VIN Overvoltage Shutdown 26 38 Voltage Max Line Transient 60 1s, Vo ≤ 5.5V V 50 Reverse Polarity −30 Input Voltage DC Vo > − 0.3V, RL = 100Ω Output Noise Voltage 10 Hz–100 kHz 50 µV Output Impedance Io = 100 mADC + 10 mArms 200 mΩ 56 dB −12 Ripple Rejection Current Limit 150 400 700 0.32 0.6 Dropout Voltage Io = 150 mA Thermal Resistance Junction to Case 4 Junction to Ambient 50 mA V ˚C/W Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Note 2: Unless otherwise specified: VIN = 14V, Io = 150 mA, Tj = 25˚C, C1 = 0.1 µF, C2 = 10 µF. All characteristics except noise voltage and ripple rejection are measured using pulse techniques (tW ≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature must be taken into account separately. www.national.com 2 LM330 Typical Performance Characteristics Dropout Voltage Dropout Voltage 00930607 00930608 Low Voltage Behavior High Voltage Behavior 00930609 00930610 Line Transient Response Load Transient Response 00930612 00930611 3 www.national.com LM330 Typical Performance Characteristics (Continued) Peak Output Current Quiescent Current 00930613 00930614 Quiescent Current Quiescent Current 00930615 00930616 Ripple Rejection Ripple Rejection 00930617 www.national.com 00930618 4 LM330 Typical Performance Characteristics (Continued) Output Impedance Overvoltage Supply Current 00930619 00930620 Reverse Supply Current Output at Reverse Supply 00930621 00930622 Output Voltage (Normalized to 5V at Tj = 25˚C) Output at Overvoltage 00930623 00930624 5 www.national.com LM330 heat sinking can be simpler and device reliability improved through lower chip operating temperature. Also, a cost savings can be utilized through use of lower power/voltage components. In applications utilizing battery power, the LM330 allows the battery voltage to drop to within 0.3V of output voltage prior to the voltage regulator dropping out of regulation. Typical Applications The LM330 is designed specifically to operate at lower input to output voltages. The device is designed utilizing a power lateral PNP transistor which reduces dropout voltage from 2.0V to 0.3V when compared to IC regulators using NPN pass transistors. Since the LM330 can operate at a much lower input voltage, the device power dissipation is reduced, 00930605 * Required if regulator is located far from power supply filter. ** C2 may be either an Aluminum or Tantalum type capacitor but must be rated to operate at −40˚C to guarantee regulator stability to that temperature extreme. 10 µF is the minimum value required for stability and may be increased without bound. Locate as close as possible to the regulation. 00930606 Note: Compared to IC regulator with 2.0V dropout voltage and IQmax, = 6.0 mA. www.national.com 6 LM330 3-Terminal Positive Regulator Physical Dimensions inches (millimeters) unless otherwise noted TO Plastic Package Order Number LM330T-5.0 NS Package Number T03B National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. For the most current product information visit us at www.national.com. LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. 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