Datasheet LT3033 (Analog Devices) - 9

LT3033
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Output Noise Spectral Density Output Noise Spectral Density RMS Output Noise CREF/BYP = 0, CFF = 0 CREF/BYP = 10nF VOUT = 0.2V, CFF = 0
) 10 ) 10 100 C Hz OUT = 10µF V Hz OUT = 1.2V f = 10Hz TO 100kHz IL = 3A V/√ COUT = 10µF 90 C V/√ OUT = 10µF IL = 3A Y (µ 80 1 Y (µ 1 ) 70 V RMS 60 0.1 V 0.1 50 OUT = 5V VOUT = 3.3V 40 VOUT = 2.5V VOUT = 1.8V 30 0.01 V 0.01 OUTPUT NOISE (µ OUT = 1.5V CFF = 0pF V 20 OUT = 1.2V CFF = 100pF CREF/BYP = 0pF VOUT = 0.9V CFF = 1nF C 10 REF/BYP = 100pF OUTPUT NOISE SPECTRAL DENSIT VOUT = 0.2V CFF = 10nF CREF/BYP = 10nF 0.001 OUTPUT NOISE SPECTRAL DENSIT 0.001 0 10 100 1k 10k 100k 1M 10 100 1k 10k 100k 1M 0.01 0.1 1 10 100 1k 10k FREQUENCY (Hz) FREQUENCY (Hz) OUTPUT CURRENT (mA) 3033 G37 3033 G38 3033 G39
RMS Output Noise RMS Output Noise vs RMS Output Noise vs CREF/BYP = 10nF, CFF = 0 Feedforward Capacitor (CFF) Bypass Capacitor (CREF/BYP)
480 360 200 VOUT = 5V VOUT = 1.5V f = 10Hz TO 100kHz VOUT = 5V 330 420 VOUT = 3.3V VOUT = 1.2V CREF/BYP = 10nF 180 V C OUT = 2.5V VOUT = 0.9V 300 C FF = 0 OUT = 10µF 160 ) 360 VOUT = 1.8V VOUT = 0.2V ) V I 270 OUT = 3.3V L = 3A ) 140 V RMS 240 300 V RMS V RMS V 210 OUT = 2.5V 120 240 180 V 100 OUT = 1.8V 150 180 80 C 120 FF = 10nF 60 OUTPUT NOISE (µ 120 V OUTPUT NOISE (µ OUT = 1.5V OUTPUT NOISE (µ f = 10Hz TO 100kHz 90 f = 10Hz TO 100kHz C V 40 OUT = 10µF OUT = 1.2V 60 VOUT = 1.2V 60 30 20 C V OUT = 10µF OUT = 0.9V VOUT = 0.2V IL = 3A 0 0 0 0.01 0.1 1 10 100 1k 10k 10 100 1k 10k 0.01 0.1 1 10 100 1k OUTPUT CURRENT (mA) FEEDFORWARD CAPACITOR, CFF (pF) BYPASS CAPACITOR, CREF/BYP (nF) 3033 G40 3033 G41 3033 G42
SHDN Transient Response SHDN Transient Response CREF/BYP = 0 CREF/BYP = 10nF
VOUT VOUT 500mV/DIV 500mV/DIV VSHDN VSHDN 1V/DIV 1V/DIV 2ms/DIV 3033 G43 2ms/DIV 3033 G44 VIN = 1.5V VIN = 1.5V VOUT = 1.2V VOUT = 1.2V RL = 0.4Ω RL = 0.4Ω COUT = 10µF COUT = 10µF Rev. A For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Revision History Typical Application Related Parts