Datasheet LT3045 (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | 20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator |
| Páginas / Página | 32 / 5 — ELECTRICAL CHARACTERISTICS Note 9:. Note 11:. Note 12:. Note 13:. Note … |
| Revisión | B |
| Formato / tamaño de archivo | PDF / 2.9 Mb |
| Idioma del documento | Inglés |
ELECTRICAL CHARACTERISTICS Note 9:. Note 11:. Note 12:. Note 13:. Note 14:. Note 10:. Note 15:
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LT3045
ELECTRICAL CHARACTERISTICS Note 9:
The LT3045 is tested and specified under pulsed load conditions
Note 11:
The current limit programming scale factor is specified while the such that TJ ≈ TA. The LT3045E is 100% tested at 25°C and performance internal backup current limit is not active. Note that the internal current is guaranteed from 0°C to 125°C. Specifications over the –40°C to 125°C limit has foldback protection for VIN – VOUT differentials greater than 12V. operating temperature range are assured by design, characterization, and
Note 12:
The internal back-up current limit circuitry incorporates foldback correlation with statistical process controls. The LT3045I is guaranteed protection that decreases current limit for VIN – VOUT > 12V. Some level of over the full –40°C to 125°C operating temperature range. LT3045H is output current is provided at all VIN – VOUT differential voltages. Consult the 100% tested at the 150°C operating junction temperature. LT3045MP Typical Performance Characteristics graph for current limit vs VIN – VOUT. is 100% tested and guaranteed over the full −55°C to 150°C operating
Note 13:
For output voltages less than 1V, the LT3045 requires a 10µA temperature range. High junction temperatures degrade operating lifetimes. minimum load current for stability. Operating lifetime is derated at junction temperatures greater than 125°C.
Note 14:
Maximum OUT-to-OUTS differential is guaranteed by design.
Note 10:
Parasitic diodes exist internally between the ILIM, PG, PGFB, SET, OUTS, and OUT pins and the GND pin. Do not drive these pins more than
Note 15:
MP-Grade is only offered in the DFN package. 0.3V below the GND pin during a fault condition. These pins must remain at a voltage more positive than GND during normal operation.
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 N = 3250 V 100.8 I IN = 2V L = 1mA 1.5 I V L = 1mA OUT = 1.3V 100.6 VOUT = 1.3V 1.0 100.4 100.2 0.5 100.0 TAGE (mV) 0 99.8 –0.5 99.6 SET PIN CURRENT (µA) 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) 3045 G01 3045 G02 3045 G03
Offset Voltage SET Pin Current Offset Voltage (VOUT – VSET)
101.0 2.0 N = 3250 IL = 1mA 150°C I 150°C 100.8 L = 1mA VOUT = 1.3V 125°C 1.5 VOUT = 1.3V 125°C 100.6 25°C 25°C –55°C 1.0 –55°C 100.4 100.2 0.5 TAGE (mV) 100.0 0 99.8 –0.5 99.6 SET PIN CURRENT (µA) 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) 3045 G04 3045 G05 3045 G06 Rev. B For more information www.analog.com 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
ELECTRICAL CHARACTERISTICS Note 9:
The LT3045 is tested and specified under pulsed load conditions
Note 11:
The current limit programming scale factor is specified while the such that TJ ≈ TA. The LT3045E is 100% tested at 25°C and performance internal backup current limit is not active. Note that the internal current is guaranteed from 0°C to 125°C. Specifications over the –40°C to 125°C limit has foldback protection for VIN – VOUT differentials greater than 12V. operating temperature range are assured by design, characterization, and
Note 12:
The internal back-up current limit circuitry incorporates foldback correlation with statistical process controls. The LT3045I is guaranteed protection that decreases current limit for VIN – VOUT > 12V. Some level of over the full –40°C to 125°C operating temperature range. LT3045H is output current is provided at all VIN – VOUT differential voltages. Consult the 100% tested at the 150°C operating junction temperature. LT3045MP Typical Performance Characteristics graph for current limit vs VIN – VOUT. is 100% tested and guaranteed over the full −55°C to 150°C operating
Note 13:
For output voltages less than 1V, the LT3045 requires a 10µA temperature range. High junction temperatures degrade operating lifetimes. minimum load current for stability. Operating lifetime is derated at junction temperatures greater than 125°C.
Note 14:
Maximum OUT-to-OUTS differential is guaranteed by design.
Note 10:
Parasitic diodes exist internally between the ILIM, PG, PGFB, SET, OUTS, and OUT pins and the GND pin. Do not drive these pins more than
Note 15:
MP-Grade is only offered in the DFN package. 0.3V below the GND pin during a fault condition. These pins must remain at a voltage more positive than GND during normal operation.
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 N = 3250 V 100.8 I IN = 2V L = 1mA 1.5 I V L = 1mA OUT = 1.3V 100.6 VOUT = 1.3V 1.0 100.4 100.2 0.5 100.0 TAGE (mV) 0 99.8 –0.5 99.6 SET PIN CURRENT (µA) 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) 3045 G01 3045 G02 3045 G03
Offset Voltage SET Pin Current Offset Voltage (VOUT – VSET)
101.0 2.0 N = 3250 IL = 1mA 150°C I 150°C 100.8 L = 1mA VOUT = 1.3V 125°C 1.5 VOUT = 1.3V 125°C 100.6 25°C 25°C –55°C 1.0 –55°C 100.4 100.2 0.5 TAGE (mV) 100.0 0 99.8 –0.5 99.6 SET PIN CURRENT (µA) 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) 3045 G04 3045 G05 3045 G06 Rev. B For more information www.analog.com 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