Datasheet LT3042 (Analog Devices) - 5

HerstellerAnalog Devices
Beschreibung20V, 200mA, Ultralow Noise, Ultrahigh PSRR RF Linear Regulator
Seiten / Seite32 / 5 — ELECTRICAL CHARACTERISTICS Note 10:. Note 12:. Note 11:. Note 13:. Note …
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ELECTRICAL CHARACTERISTICS Note 10:. Note 12:. Note 11:. Note 13:. Note 14:. Note 15:

ELECTRICAL CHARACTERISTICS Note 10: Note 12: Note 11: Note 13: Note 14: Note 15:

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LT3042
ELECTRICAL CHARACTERISTICS Note 10:
Parasitic diodes exist internally between the ILIM, PG, PGFB, SET,
Note 12:
The internal back-up current limit circuitry incorporates foldback OUTS, and OUT pins and the GND pin. Do not drive these pins more than protection that decreases current limit for VIN – VOUT > 12V. Some level of 0.3V below the GND pin during a fault condition. These pins must remain output current is provided at all VIN – VOUT differential voltages. Consult at a voltage more positive than GND during normal operation. the Typical Performance Characteristics graph for current limit vs VIN –
Note 11:
The current limit programming scale factor is specified while the VOUT. internal backup current limit is not active. Note that the internal current
Note 13:
For output voltages less than 1V, the LT3042 requires a 10µA limit has foldback protection for VIN – VOUT differentials greater than 12V. minimum load current for stability.
Note 14:
Maximum OUT-to-OUTS differential is guaranteed by design.
Note 15:
The PSRR at 120Hz is guaranteed by design, characterization, and correlation with statistical process controls.
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, unless otherwise noted. SET Pin Current SET Pin Current Offset Voltage (VOUT – VSET)
101.0 2.0 VIN = 2V V N = 4354 IN = 2V 100.8 IL = 1mA 1.5 IL = 1mA V V 100.6 OUT = 1.3V OUT = 1.3V 1.0 100.4 100.2 0.5 100.0 TAGE (mV) 0 99.8 –0.5 SET PIN CURRENT (µA) 99.6 OFFSET VOL –1.0 99.4 99.2 –1.5 99.0 –2.0 –75 –50 –25 0 25 50 75 100 125 150 98 99 100 101 102 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) ISET DISTRIBUTION (µA) TEMPERATURE (°C) 3042 G01 3042 G02 3042 G03
Offset Voltage SET Pin Current Offset Voltage (VOUT – VSET)
101.0 2.0 N = 4354 IL = 1mA 150°C IL = 1mA 150°C 100.8 VOUT = 1.3V 125°C 1.5 VOUT = 1.3V 125°C 25°C 25°C 100.6 –55°C 1.0 –55°C 100.4 100.2 0.5 100.0 TAGE (mV) 0 99.8 –0.5 SET PIN CURRENT (µA) 99.6 OFFSET VOL –1.0 99.4 99.2 –1.5 99.0 –2.0 –2 –1 0 1 2 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 VOS DISTRIBUTION (mV) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3042 G04 3042 G05 3042 G06 3042fb For more information www.linear.com/LT3042 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts