Datasheet LT3088 (Analog Devices) - 6

LT3088
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C unless otherwise specified. Current Source Linear Regulator Linear Regulator Line Transient Response Turn-On Response Turn-On Response
6 4 4 RSET = 6.04k 5 ROUT = 0.6Ω 3 3 COUT = 0 RSET = 20k 4 CSET = 30pF 2 RLOAD = 1.25Ω 2 R C SET = 20k OUT = 2.2µF CERAMIC RLOAD = 1.25Ω INPUT VOLTAGE (V) 3 1 CSET = 0 1 COUT = 2.2µF CERAMIC 500mA CURRENT SOURCE CONFIGURATION INPUT VOLTAGE (V) INPUT VOLTAGE (V) C 600 0 0 SET = 0.1µF 550 1.0 1.0 500 0.5 0.5 450 0.0 0.0 OUTPUT CURRENT (mA) 400 –0.5 –0.5 0 10 20 30 40 50 60 70 80 90 100 OUTPUT VOLTAGE (V) 0 10 20 30 40 50 60 70 80 90 100 OUTPUT VOLTAGE (V) 0 2 4 6 8 10 12 14 16 18 20 TIME (µs) TIME (µs) TIME (ms) 3088 G19 3080 G20 3088 G21
Current Source Current Source Residual Output Voltage with Turn-On Response Turn-On Response Less Than Minimum Load
INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3 3 600 100mA CURRENT SOURCE CONFIGURATION 500mA CURRENT SOURCE CONFIGURATION 2 2 500 VIN = 36V 120 1 600 1 400 100 0 500 0 VIN = 5V 80 400 300 60 300 200 SET PIN = 0V OUTPUT CURRENT (mA) 40 R OUTPUT VOLTAGE (mV) SET = 6.04k OUTPUT CURRENT (mA) 200 RSET = 6.04k VIN VOUT ROUT = 3.01Ω ROUT = 0.6Ω 100 20 C R OUT = 0 100 COUT = 0 TEST CSET = 30pF CSET = 30pF 0 0 0 0 10 20 30 40 50 60 140 80 90 100 0 10 20 30 40 50 60 70 80 90 100 0 500 1000 1500 2000 TIME (µs) TIME (µs) RTEST (Ω) 3088 G22 3088 G23 3088 G24
Ripple Rejection Ripple Rejection Output Impedance
100 100 10M COUT = 2.2µF CERAMIC C CURRENT SOURCE CONFIGURATION 90 OUT = 2.2µF CERAMIC CSET = 0.1µF 90 CSET = 0.1µF 1M 80 VIN = VOUT(NOMINAL) + 2V 80 ILOAD = 100mA 70 70 100k 60 60 10k 50 50 40 40 1k 30 30 RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) 100 OUTPUT IMPEDANCE (Ω) 20 ILOAD = 100mA 20 VIN = VOUT + 5V I 10 SOURCE = 10mA 10 ILOAD = 500mA 10 VIN = VOUT + 2V ISOURCE = 100mA ILOAD = 800mA VIN = VOUT + 1.5V ISOURCE = 500mA 0 0 1 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 3088 G25 3088 G26 3088 G27 3088fb 6 For more information www.linear.com/LT3088 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Typical Performance Characteristics Block Diagram Applications Information Revision History Typical Application Related Parts