Datasheet LT3090 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | –36V, 600mA Negative Linear Regulator with Programmable Current Limit |
| Pages / Page | 36 / 8 — Typical perForMance characTerisTics TJ = 25°C, unless otherwise noted. … |
| File Format / Size | PDF / 704 Kb |
| Document Language | English |
Typical perForMance characTerisTics TJ = 25°C, unless otherwise noted. Programmable Brick-Wall Current. Limit
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LT3090
Typical perForMance characTerisTics TJ = 25°C, unless otherwise noted. Programmable Brick-Wall Current Limit Internal Current Limit Internal Current Limit
–1.50 800 60 RILIM = 20k RILIM = 100k RILIM = 40k 700 –1.25 50 600 –1.00 40 500 TAGE (V) –0.75 400 30 300 –0.50 20 OUTPUT VOL CURRENT LIMIT (mA) CURRENT LIMIT (mA) 200 –0.25 10 R 100 VIN = –1.9V V SET = 25K IN = –36V V VOUT = 0V V IN = –3V OUT = 0V 0 0 0 0 100 200 300 400 500 600 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 OUTPUT CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3090 G28 3090 G29 3090 G30
Internal Current Limit Input Ripple Rejection Input Ripple Rejection
800 80 80 –55°C –3VIN IL = 600mA 700 25°C 70 –3.5VIN 70 IL = 300mA 125°C –4.5VIN IL = 100mA 600 150°C 60 60 500 50 50 400 40 40 300 30 30 CURRENT LIMIT (mA) 200 RIPPLE REJECTION (dB) 20 V RIPPLE REJECTION (dB) OUT = –2.5V 20 VOUT = –2.5V ILOAD = 600mA VIN = –3.5V 100 10 CSET = 0.1µF 10 CSET = 0.1µF VOUT = 0V INPUT RIPPLE = 50mVRMS INPUT RIPPLE = 50mVRMS 0 0 0 0 –6 –12 –18 –24 –30 –36 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M INPUT-TO-OUTPUT DIFFERENTIAL (V) FREQUENCY (Hz) FREQUENCY (Hz) 3090 G31 3090 G32 3090 G33
Input Ripple Rejection Ripple Rejection (120Hz) Noise Spectral Density
100 100 1k 100 COUT = 4.7µF, CSET = 0.1µF 90 COUT = 22µF, CSET = 0.1µF SPECTRAL DENSIT 80 COUT = 4.7µF, CSET = 0.47µF 95 ) REFERENCE CURRENT NOISE Hz 70 /√ 90 60 Y (nV 50 85 100 10 Y (pA/√ 40 80 30 RIPPLE REJECTION (dB) V RIPPLE REJECTION (dB) V Hz IN = –4V ERROR AMPLIFIER NOISE 20 OUT = –2.5V ) I SPECTRAL DENSIT LOAD = 600mA 75 VOUT = –2.5V 10 CSET = 0.1µF ILOAD = 600mA INPUT RIPPLE = 50mVRMS CSET = 0.47µF 0 70 10 1 10 100 1k 10k 100k 1M 10M –75 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k FREQUENCY (Hz) TEMPERATURE (°C) FREQUENCY (Hz) 3090 G34 3090 G35 3090 G36 3090fa 8 For more information www.linear.com/LT3090
Typical perForMance characTerisTics TJ = 25°C, unless otherwise noted. Programmable Brick-Wall Current Limit Internal Current Limit Internal Current Limit
–1.50 800 60 RILIM = 20k RILIM = 100k RILIM = 40k 700 –1.25 50 600 –1.00 40 500 TAGE (V) –0.75 400 30 300 –0.50 20 OUTPUT VOL CURRENT LIMIT (mA) CURRENT LIMIT (mA) 200 –0.25 10 R 100 VIN = –1.9V V SET = 25K IN = –36V V VOUT = 0V V IN = –3V OUT = 0V 0 0 0 0 100 200 300 400 500 600 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 OUTPUT CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3090 G28 3090 G29 3090 G30
Internal Current Limit Input Ripple Rejection Input Ripple Rejection
800 80 80 –55°C –3VIN IL = 600mA 700 25°C 70 –3.5VIN 70 IL = 300mA 125°C –4.5VIN IL = 100mA 600 150°C 60 60 500 50 50 400 40 40 300 30 30 CURRENT LIMIT (mA) 200 RIPPLE REJECTION (dB) 20 V RIPPLE REJECTION (dB) OUT = –2.5V 20 VOUT = –2.5V ILOAD = 600mA VIN = –3.5V 100 10 CSET = 0.1µF 10 CSET = 0.1µF VOUT = 0V INPUT RIPPLE = 50mVRMS INPUT RIPPLE = 50mVRMS 0 0 0 0 –6 –12 –18 –24 –30 –36 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M INPUT-TO-OUTPUT DIFFERENTIAL (V) FREQUENCY (Hz) FREQUENCY (Hz) 3090 G31 3090 G32 3090 G33
Input Ripple Rejection Ripple Rejection (120Hz) Noise Spectral Density
100 100 1k 100 COUT = 4.7µF, CSET = 0.1µF 90 COUT = 22µF, CSET = 0.1µF SPECTRAL DENSIT 80 COUT = 4.7µF, CSET = 0.47µF 95 ) REFERENCE CURRENT NOISE Hz 70 /√ 90 60 Y (nV 50 85 100 10 Y (pA/√ 40 80 30 RIPPLE REJECTION (dB) V RIPPLE REJECTION (dB) V Hz IN = –4V ERROR AMPLIFIER NOISE 20 OUT = –2.5V ) I SPECTRAL DENSIT LOAD = 600mA 75 VOUT = –2.5V 10 CSET = 0.1µF ILOAD = 600mA INPUT RIPPLE = 50mVRMS CSET = 0.47µF 0 70 10 1 10 100 1k 10k 100k 1M 10M –75 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k FREQUENCY (Hz) TEMPERATURE (°C) FREQUENCY (Hz) 3090 G34 3090 G35 3090 G36 3090fa 8 For more information www.linear.com/LT3090
