Datasheet LT3081 (Analog Devices) - 8
Fabricante | Analog Devices |
Descripción | 1.5A Single Resistor Rugged Linear Regulator with Monitors |
Páginas / Página | 32 / 8 — Typical perForMance characTerisTics TJ = 25°C unless otherwise specified. … |
Formato / tamaño de archivo | PDF / 475 Kb |
Idioma del documento | Inglés |
Typical perForMance characTerisTics TJ = 25°C unless otherwise specified. Linear Regulator. Current Source. Turn-On Response
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LT3081
Typical perForMance characTerisTics TJ = 25°C unless otherwise specified. Linear Regulator Current Source Current Source Turn-On Response Turn-On Response Turn-On Response
4 4 4 100mA CURRENT SOURCE CONFIGURATION 1A CURRENT SOURCE CONFIGURATION 3 3 3 2 2 2 1 1 R 1 R INPUT VOLTAGE (V) INPUT VOLTAGE (V) SET = 6.04k SET = 6.04k R INPUT VOLTAGE (V) R 0 0 OUT = 3.01Ω OUT = 0.3Ω C 0 OUT = 0 COUT = 0 C C 1.0 150 SET = 20pF 1.5 SET = 20pF 0.5 R 100 1.0 SET = 20k RLOAD = 0.67Ω 0 COUT = 2.2µF CERAMIC 50 0.5 CSET = 0.1µF –0.5 0 0 OUTPUT VOLTAGE (V) 0 2 4 6 8 10 12 14 16 18 20 OUTPUT CURRENT (mA) 0 20 40 60 80 100 120 140 160 180 200 OUTPUT CURRENT (A) 0 20 40 60 80 100 120 140 160 180 200 TIME (ms) TIME (µs) TIME (µs) 3081 G27 3081 G28 3081 G29
Residual Output Voltage with Less Than Minimum Load Ripple Rejection Ripple Rejection
800 100 100 COUT = 2.2µF CERAMIC COUT = 2.2µF CERAMIC 700 90 CSET = 0.1µF 90 CSET = 0.1µF V V I IN = 36V 80 IN = VOUT(NOMINAL) + 2V 80 LOAD = 100mA 600 V 70 IN = 5V 70 500 60 60 400 50 50 300 40 40 SET PIN = 0V 30 OUTPUT VOLTAGE (mV) 30 200 VIN VOUT RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) 20 20 R ILOAD = 100mA VIN = VOUT + 5V 100 TEST 10 ILOAD = 500mA 10 VIN = VOUT + 2V ILOAD = 1.5A VIN = VOUT + 1.5V 0 0 0 0 500 1000 1500 2000 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M RTEST (Ω) FREQUENCY (Hz) FREQUENCY (Hz) 3081 G30 3081 G31 3081 G32
Output Impedance Ripple Rejection (120Hz)
10M 90 CURRENT SOURCE CONFIGURATION 88 1M 86 100k 84 10k 82 80 1k 78 VIN = VOUT(NOMINAL) + 2V 100 76 RIPPLE = 500mVP-P OUTPUT IMPEDANCE (Ω) RIPPLE REJECTION (dB) f = 120Hz I 74 I 10 SOURCE = 10mA LOAD = 0.1A ISOURCE = 100mA 72 COUT = 2.2µF ISOURCE = 1A CSET = 0.1µF 1 70 10 100 1k 10k 100k 1M 10M –50 –25 0 25 50 75 100 125 150 FREQUENCY (Hz) TEMPERATURE (°C) 3081 G33 3081 G34 3081fc 8 For more information www.linear.com/LT3081 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