Datasheet LT1117, LT1117-2.85, LT1117-3.3, LT1117-5 (Analog Devices) - 5

LT1117/LT1117-2.85 LT1117-3.3/LT1117-5
TYPICAL PERFORMANCE CHARACTERISTICS LT1117 Ripple Rejection LT1117 Ripple Rejection vs Current Temperature Stability
100 100 2.0 V V OUT = 5V 90 V RIPPLE ≤ RIPPLE ≤ 3VP-P 90 C 0.5V ADJ = 25μF P-P C 80 80 OUT = 25μF fRIPPLE = 120Hz (V 1.0 IN – VOUT) ≥ 3V 70 70 VRIPPLE ≤ 3VP-P 60 60 50 50 fRIPPLE = 20kHz 0 40 (V 40 IN – VOUT) ≥ VDROPOUT VRIPPLE ≤ 0.5VP-P 30 30 RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) –1.0 20 C 20 ADJ = 200μF AT f < 60Hz OUTPUT VOLTAGE CHANGE (%) 10 CADJ = 25μF AT f > 60Hz 10 IOUT = 0.5A 0 0 –2.0 10 100 1k 10k 100k 0 0.2 0.4 0.6 0.8 –50 –25 0 25 50 75 100 125 150 FREQUENCY (Hz) OUTPUT CURRENT (A) TEMPERATURE (°C) 1117 G04 1117 G05 1117 G06
LT1117-2.85 LT1117-5 Adjust Pin Current Load Transient Response Load Transient Response
100 0.3 0.3 CIN = 10μF C 90 IN = 10μF 0.2 COUT = 10μF TANTALUM 0.2 COUT = 10μF TANTALUM V 80 IN = 4.25V VIN = 6.5V 0.1 PRELOAD = 0.1A 0.1 PRELOAD = 0.1A 70 0 60 DEVIATION (V) 0 OUTPUT VOLTAGE DEVIATION (V) OUTPUT VOLTAGE 50 –0.1 –0.1 40 –0.2 –0.2 30 0.5 ADJUST PIN CURRENT (μA) 0.5 20 0 10 (A) (A) 0 0 –0.5 –0.5 –50 –25 0 25 50 75 100 125 150 LOAD CURRENT 0 10 20 30 40 50 60 70 80 90 100 LOAD CURRENT 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE (°C) TIME (μs) TIME (μs) 1117 G07 1117 G08 1117 G09
LT1117-2.85 LT1117-5 Line Transient Response Line Transient Response
60 60 CIN = 1μF CIN = 1μF 40 COUT = 10μF TANTALUM 40 COUT = 10μF TANTALUM IOUT = 0.1A IOUT = 0.1A 20 20 0 0 OUTPUT VOLTAGE DEVIATION (mV) OUTPUT VOLTAGE DEVIATION (mV) –20 –20 –40 –40 5.25 7.50 (V) 4.25 (V) 6.50 3.25 5.50 INPUT VOLTAGE 0 20 40 60 80 100 120 140 160 180 200 INPUT VOLTAGE 0 20 40 60 80 100 120 140 160 180 200 TIME (μs) TIME (μs) 1117 G10 1117 G11 1117fd 5