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LM137 データシート(PDF) 1 Page - Texas Instruments |
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LM137 データシート(HTML) 1 Page - Texas Instruments |
1 / 28 page ( ) OUT ADJ R V V I R 2 1.25 1 2 120 æ ö - = - + + - ´ ç ÷ è ø Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM137, LM337-N SNVS778E – MAY 1999 – REVISED JANUARY 2016 LM137, LM337-N 3-Terminal Adjustable Negative Regulators 1 Features 3 Description The LM137 and LM337-N are adjustable 3-terminal 1 • 1.5-A Output Current negative voltage regulators capable of supplying • Line Regulation 0.01%/V (Typical) −1.5 A or more currents over an output voltage range • Load Regulation 0.3% (Typical) of −1.25 V to −37 V. It requires only two external resistors to set the output voltage and one output • 77-dB Ripple Rejection capacitor for frequency compensation. The circuit • 50 ppm/°C Temperature Coefficient design has been optimized for excellent regulation • Thermal Overload Protection and low thermal transients. Further, the LM137 and LM337-N feature internal current limiting, thermal • Internal Short-Circuit Current Limiting Protections shutdown and safe-area compensation, making it virtually blowout-proof against overloads. 2 Applications The LM137 and LM337-N are ideal complements to • Industrial Power Supplies the LM117 and LM317 adjustable positive regulators. • Factory Automation Systems The LM137 has a wider operating temperature range • Building Automation Systems than the LM337-N and is also offered in military and • PLC Systems space qualified versions. • Instrumentation Device Information(1) • IGBT Drive Negative Gate Supplies PART NUMBER PACKAGE BODY SIZE (NOM) • Networking LM137 TO (3) 8.255 mm × 8.255 mm • Set-Top Boxes SOT-223 (4) 3.50 mm × 6.50 mm LM337-N TO (3) 8.255 mm × 8.255 mm TO-220 (3) 10.16 mm × 14.986 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. The LF01 is a lead formed (bent) version of the TO-220 package. Adjustable Negative Voltage Regulator Full output current not available at high input-output voltages †C1 = 1- μF solid tantalum or 10-μF aluminum electrolytic required for stability *C2 = 1- μF solid tantalum is required only if regulator is more than 4″ from power-supply filter capacitor Output capacitors in the range of 1- μF to 1000-μF of aluminum or tantalum electrolytic are commonly used to provide improved output impedance and rejection of transients 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
同様の部品番号 - LM137_16 |
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同様の説明 - LM137_16 |
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