Datasheet LT3080-1 (Analog Devices) - 5

LT3080-1
Typical perFormance characTerisTics Dropout Voltage Dropout Voltage Dropout Voltage (Minimum IN Voltage) (Minimum VCONTROL Pin Voltage) (Minimum VCONTROL Pin Voltage)
400 ) (V) 1.6 ) (V) 1.6 OUT TJ = –50°C OUT 350 1.4 1.4 ILOAD = 1.1A ) (mV) I – V – V LOAD = 1.1A OUT 300 1.2 1.2 – V T CONTROL J = 125°C CONTROL IN 250 1.0 T 1.0 ILOAD = 1mA I J = 25°C 200 LOAD = 500mA 0.8 0.8 TAGE (V TAGE (V TAGE (V 150 0.6 0.6 100 ILOAD = 100mA 0.4 0.4 50 0.2 0.2 MINIMUM IN VOL 0 0 0 –50 –25 0 25 50 75 100 125 150 MINIMUM CONTROL VOL 0 0.2 0.4 0.6 0.8 1.0 1.2 MINIMUM CONTROL VOL –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) OUTPUT CURRENT (A) TEMPERATURE (°C) 30801 G10 30801 G11 30801 G12
Current Limit Current Limit Load Transient Response
1.6 1.6 60 T V J = 25°C OUT = 1.5V 40 C 1.4 1.4 SET = 0.1µF V 20 IN = VCONTROL = 3V 1.2 1.2 0 1.0 1.0 –20 C OUTPUT VOLTAGE DEVIATION (mV) OUT = 10µF CERAMIC 0.8 0.8 –40 COUT = 2.2µF CERAMIC 0.6 0.6 400 CURRENT LIMIT (A) CURRENT LIMIT (A) 300 0.4 0.4 200 0.2 VIN = 7V 0.2 100 VOUT = 0V 0 0 LOAD CURRENT (mA) 0 –50 –25 0 25 50 75 100 125 150 0 6 12 18 24 30 36* 0 5 10 15 20 25 30 35 40 45 50 TEMPERATURE (°C) INPUT-TO-OUTPUT DIFFERENTIAL (V) TIME (µs) 30801 G13 *SEE NOTE 9 IN ELECTRICAL 30801 G14 30801 G15 CHARACTERISTICS TABLE
Load Transient Response Line Transient Response Turn-On Response
150 75 5 100 50 4 50 25 3 0 0 2 –50 –25 1 OUTPUT VOLTAGE DEVIATION (mV) INPUT VOLTAGE (V) –100 OUTPUT VOLTAGE DEVIATION (mV) –50 VOUT = 1.5V 0 ILOAD = 10mA 1.2 6 C 2.0 OUT = 2.2µF C VIN = VCONTROL = 3V CERAMIC OUT = 2.2µF CERAMIC 0.9 5 1.5 VOUT = 1.5V CSET = 0.1µF 0.6 COUT = 10µF CERAMIC 4 CERAMIC 1.0 C R SET = 0.1µF SET = 100k 0.3 3 0.5 CSET = 0 IN/CONTROL VOLTAGE (V) RLOAD = 1Ω LOAD CURRENT (A) 0 2 OUTPUT VOLTAGE (V) 0 0 5 10 15 20 25 30 35 40 45 50 0 10 20 30 40 50 60 70 80 90 100 0 1 2 3 4 5 6 7 8 9 10 TIME (µs) TIME (µs) TIME (µs) 30801 G16 30801 G17 30801 G18 30801fc For more information www.linear.com/LT3080-1 5 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