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LM137 bảng dữ liệu(PDF) 1 Page - Linear Technology |
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LM137 bảng dữ liệu(HTML) 1 Page - Linear Technology |
1 / 12 page 1 137afb LT137A/LM137 LT337A/LM337 TYPICAL APPLICATION FEATURES APPLICATIONS DESCRIPTION Negative Adjustable Regulator The LT®137A/LT337A negative adjustable regulators will deliver up to 1.5A output current over an output voltage range of –1.2V to –37V. Linear Technology has made significant improvements in these regulators compared to previous devices, such as better line and load regulation, and a maximum output voltage error of 1%. Every effort has been made to make these devices easy to use and difficult to damage. Internal current and power limiting coupled with true thermal limiting prevents device damage due to overloads or shorts, even if the regulator is not fastened to a heat sink. Maximum reliability is attained with Linear Technology’s advanced processing techniques combined with a 100% burn-in in the thermal limit mode. This assures that all device protection circuits are working and eliminates field failures experienced with other regulators that receive only standard electrical testing. Negative Regulator n Guaranteed 1% Initial Voltage Tolerance n Guaranteed 0.01%/V Line Regulation n Guaranteed 0.5% Load Regulation n Guaranteed 0.02%/W Thermal Regulation n 100% Burn-in in Thermal Limit n Adjustable Power Supplies n System Power Supplies n Precision Voltage/Current Regulators n On-Card Regulators L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Output Voltage Error LT137A ADJ VIN –VIN R2* *R2 = R1 VOUT –VOUT = 1.25V 1 + R2 R1 137A TA01 + R1 121Ω C3 1μF SOLID TANTALUM + C2 5μF SOLID TANTALUM – 1 |VOUT| 1.25V OUTPUT VOLTAGE (V) 12 4 6 8 20 40 12 11 10 9 8 7 6 5 4 3 2 1 0 10 100 137A TA01b LM337 LT337A 1% RESISTORS 2% RESISTORS |
Số phần tương tự - LM137_15 |
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Mô tả tương tự - LM137_15 |
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