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UC285TDKTTT-2 데이터시트(PDF) 2 Page - Texas Instruments |
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UC285TDKTTT-2 데이터시트(HTML) 2 Page - Texas Instruments |
2 / 13 page UC2851, UC2852, UC2853, UC285ADJ, UC3851, UC3852, UC3853, UC385ADJ FAST TRANSIENT RESPONSE 5A LOW DROPOUT REGULATOR SLUS212E − NOVEMBER 1999 − REVISED FEBRUARY 2004 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature (unless otherwise noted)† VIN 7.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output voltage 1.2 V to −6.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature −65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Junction temperature −55 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature (soldering, 10 seconds) 300 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. AVAILABLE OPTIONS(1) PACKAGED DEVICES TJ TO-220 (T) TO−263 (TD)(2) TJ OUTPUT VOLTAGE OUTPUT VOLTAGE 1.5 V 2.1 V 2.5 V 1.2 V or ADJ 1.5 V 2.1 V 2.5 V 1.2 V or ADJ –40 °C to 100°C 285T-1 285T-2 285T-3 285T-ADJ 285TD-1 285TD-2 285TD-3 285TD-ADJ 0 °C to 100°C 385T-1 385T-2 385T-3 385T-ADJ 385TD-1 385TD-2 385TD-3 385TD-ADJ 1. For more package and ordering information, see the Package Option Addendum located at the end of this data sheet. 2. For 50 piece reel, add KTTT (e.g., UC285TDKTTT−1); for 500 piece reel, add TR (e.g., UC285TDTR−1). electrical characteristics unless otherwise stated, these parameters apply for TA = −40°C to 100°C for the UC285-x series and 0 °C to 100°C for the UC385-x, VB = 5 V; VIN = 3.3 V, VOUT = 2.5 V, TA = TJ. PARAMETER TEST CONDITION MIN TYP MAX UNIT UC385-3 Fixed 2.5 V, 5-A Family Output voltage UC385-3 IVOUT = 100 mA 2.475 2.5 2.525 V Output voltage UC285-3 IVOUT = 100 mA 2.45 2.5 2.525 V Load regulation IVOUT = 10 mA to 5 A 0.5 4 mV VIN PSRR 80 110 dB VB PSRR 50 65 dB VIN dropout voltage (VIN - VOUT) IVOUT = 5 A, TJ = 25°C 350 425 mV VIN dropout voltage (VIN - VOUT) UC385-3 IVOUT = 5 A 350 490 mV UC285-3 IVOUT = 5 A 350 500 mV VB dropout (VB - VOUT) UC385-3 IVOUT = 5 A 1.8 2.1 V VB dropout (VB - VOUT) UC285-3 IVOUT = 5 A 1.8 2.2 V Short circuit current limit 5.1 7.5 A VB current IVOUT = 10 mA 8 15 mA VB current IVOUT = 5 A 40 100 mA VIN current IVOUT = 5 A 4.9 4.96 A UC385-2 Fixed 2.1 V, 5-A Family Output voltage UC385-2 IVOUT = 100 mA 2.079 2.1 2.121 V Output voltage UC285-2 IVOUT = 100 mA 2.058 2.1 2.121 V Load regulation IVOUT = 10 mA to 5 A 0.5 4 mV VIN PSRR 80 110 dB VB PSRR 50 67 dB |
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