Datasheet LT3055 (Analog Devices) - 4

制造商Analog Devices
描述500mA, Linear Regulator with Precision Current Limit and Diagnostics
页数 / 页26 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply …
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ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating

ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating

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LT3055 Series
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage (Notes 3, 11, 17) ILOAD = 500mA l 1.6 2.2 V Regulated Output Voltage (Note 4) LT3055-3.3: VIN = 3.9V, ILOAD = 1mA 3.267 3.3 3.333 V 3.9V < VIN < 45V, 1mA < ILOAD < 500mA l 3.234 3.3 3.336 V LT3055-5: VIN = 3.9V, ILOAD = 1mA 4.95 5 5.05 V 5.6V < VIN < 45V, 1mA < ILOAD < 500mA l 4.9 5 5.1 V ADJ Pin Voltage (Notes 3, 4) LT3055: VIN = 2.2V, ILOAD = 1mA 594 600 606 mV 2.2V < VIN < 45V, 10mA < ILOAD < 500mA l 588 612 mV Line Regulation (Note 3) LT3055: ∆VIN = 2.2V to 45V, ILOAD = 1mA l 0.25 3 mV LT3055-3.3: ∆VIN = 3.9V to 45V, ILOAD = 1mA l 1.4 19.5 mV LT3055-5: ∆VIN = 5.6V to 45V, ILOAD = 1mA l 2 30 mV Load Regulation (Note 3) LT3055: VIN = 2.2V, ILOAD = 1mA to 500mA l 0.5 4 mV LT3055-3.3: VIN = 4.3V, ILOAD = 1mA to 500mA l 3.5 22 mV LT3055-5: VIN = 6V, ILOAD = 1mA to 500mA l 5.25 33 mV Dropout Voltage, VIN = VOUT(NOMINAL) (Notes 5, 6) ILOAD = 10mA 140 175 mV l 260 mV ILOAD = 50mA 200 250 mV l 370 mV ILOAD = 100mA 225 275 mV l 410 mV ILOAD = 500mA 350 400 mV l 590 mV GND Pin Current, VIN = VOUT(NOMINAL) + 0.6V ILOAD = 0mA l 65 130 μA (Notes 6, 7) ILOAD = 1mA l 100 200 μA ILOAD = 10mA l 270 550 μA ILOAD = 100mA l 1.8 4.5 mA ILOAD = 500mA l 11 25 mA Quiescent Current in Shutdown VIN = 45V, VSHDN = 0V 0.2 1 μA ADJ Pin Bias Current (Notes 3,12) VIN = 12V l 16 60 nA Output Voltage Noise COUT = 10µF, ILOAD = 500mA, VOUT = 600mV, 90 μVRMS BW = 10Hz to 100kHz COUT = 10µF, CBYP = 10nF, ILOAD = 500mA, 25 μVRMS VOUT = 600mV, BW = 10Hz to 100kHz Shutdown Threshold VOUT = Off to On l 1.3 1.42 V VOUT = On to Off l 0.9 1.1 V SHDN Pin Current (Note 13) VSHDN = 0V, VIN = 45V l 1 μA VSHDN = 45V, VIN = 45V l 0.5 3 µA Ripple Rejection VIN-VOUT = 2V, VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 500mA LT3055, VOUT = 0.6V 70 85 dB LT3055-3.3 55 70 dB LT3055-5 51 66 dB Input Reverse Leakage Current VIN = –45V, VOUT = 0 l 300 μA Reverse Output Current (Note 14) VOUT = 1.2V, VIN = 0 0 10 μA Internal Current Limit (Note 3) VIN = 2.2V, VOUT = 0, VIMAX = 0 900 mA VIN = 2.2V, ∆VOUT = –5% l 520 mA External Programmed Current Limit, VOUT = 5V 5.6V < VIN < 10V, VOUT = 5V, RIMAX = 1.5k, l 180 200 220 mA (Notes 6, 8) FAULT2 Pin Threshold (IFAULT) 5.6V < VIN < 7V, VOUT = 5V, RIMAX = 604Ω, l 445 495 545 mA FAULT2 Pin Threshold (IFAULT) Rev. B 4 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts