Datasheet LT3080-1 (Analog Devices) - 6

LT3080-1
Typical perFormance characTerisTics Residual Output Voltage with VCONTROL Pin Current VCONTROL Pin Current Less Than Minimum Load
25 30 0.8 VCONTROL – VOUT = 2V SET PIN = 0V VIN – VOUT = 1V 0.7 25 V V IN V IN = 20V OUT 20 ILOAD = 1.1A 0.6 R DEVICE IN TEST 20 CURRENT LIMIT TJ = –50°C 0.5 15 TAGE (V) 15 0.4 VIN = 10V 10 0.3 10 TJ = 25°C V OUTPUT VOL IN = 5V 0.2 CONTROL PIN CURRENT (mA) 5 CONTROL PIN CURRENT (mA) T 5 J = 125°C 0.1 ILOAD = 1mA 0 0 0 0 6 12 18 24 30 36* 0 0.2 0.4 0.6 0.8 1.0 1.2 0 1k 2k INPUT-TO-OUTPUT DIFFERENTIAL (V) LOAD CURRENT (A) RTEST (Ω) *SEE NOTE 9 IN ELECTRICAL 30801 G19 30801 G20 30801 G21 CHARACTERISTICS TABLE
Ripple Rejection - Dual Supply - Ripple Rejection - Dual Supply - Ripple Rejection - Single Supply VCONTROL Pin IN Pin
100 100 100 VIN = VCONTROL = VOUT (NOMINAL) + 2V 90 90 90 RIPPLE = 50mV 80 P–P 80 80 I I 70 LOAD = 100mA 70 LOAD = 100mA 70 I ILOAD = 1.1A LOAD = 1.1A 60 60 60 50 50 50 40 40 40 VIN = VOUT (NOMINAL) + 1V V 30 30 30 CONTROL = VOUT (NOMINAL) +2V RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) VIN = VOUT (NOMINAL) + 1V RIPPLE REJECTION (dB) RIPPLE = 50mVP–P 20 20 VCONTROL = VOUT (NOMINAL) +2V 20 COUT = 2.2µF CERAMIC 10 10 10 COUT = 2.2µF CERAMIC COUT = 2.2µF CERAMIC RIPPLE = 50mV ILOAD = 1.1A 0 0 P–P 0 10 100 1k 10k 100k 1M 10 100 1k 10k 100k 1M 10 100 1k 10k 100k 1M FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 30801 G22 30801 G23 30801 G24
Ripple Rejection (120Hz) Noise Spectral Density
80 10k 1k 79 ) SPECTRAL DENSITY ( REFERENCE CURRENT NOISE 78 Hz 1k 100 77 76 75 100 10 74 pA/ √ 73 SINGLE SUPPLY OPERATION RIPPLE REJECTION (dB) V ERROR AMPLIFIER NOISE 10 1.0 Hz 72 IN = VOUT(NOMINAL) + 2V SPECTRAL DENSITY (nV/√ ) RIPPLE = 500mVP-P, f=120Hz 71 ILOAD = 1.1A CSET = 0.1µF, COUT = 2.2µF 70 1 0.1 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k TEMPERATURE (°C) FREQUENCY (Hz) 30801 G26 30801 G25 30801fc 6 For more information www.linear.com/LT3080-1 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