Datasheet LT1120A (Analog Devices) - 5

LT1120A
Typical perForMance characTerisTics Regulator Load Regulation Supply Current Regulator Short-Circuit Current
0.3 100 350 PRE-LOAD = 100µA TJ = –55°C 0.2 300 TJ = 25°C 10 250 0.1 200 0 1 150 TJ = 125°C –0.1 100 SUPPLY CURRENT (mA) 0.1 OUTPUT VOLTAGE CHANGE (%) –0.2 SHORT-CIRCUIT CURRENT (mA) 50 –0.3 0.01 0 0.1 1 10 100 1000 0.1 1 10 100 1000 –50 –10 30 70 110 150 OUTPUT CURRENT (mA) REGULATOR OUTPUT CURRENT (mA) TEMPERATURE (°C) 1120A G01 1120A G02 1120A G03
Dropout Voltage Regulator Minimum Load Current Regulator Ripple Rejection
1 100 70 ∆VOUT = 100mV 65 IOUT = 100mA 60 55 0.1 I 10 50 OUT = 10mA 45 IOUT = 1mA RIPPLE REJECTION (dB) 40 VIN = 10VDC, MINIMUM LOAD CURRENT (µA) 1VP-P 35 VOUT = 5V COUT = 10µF REGULATOR INPUT-OUTPUT DIFFERENTIAL (V) 0.01 1 30 0.1 1 10 100 1000 70 80 90 100 110 120 130 140 150 10 100 1k 10k 100k REGULATOR OUTPUT CURRENT (mA) TEMPERATURE (°C) RIPPLE FREQUENCY (Hz) 1120A G04 1120A G05 1120A G06
Supply Current Supply Current at Dropout Reference Regulation
10 10 4 I 3 OUT = 100mA IOUT = 100mA 2 1 1 1 0 –1 0.1 IOUT = 10mA 0.1 IOUT = 10mA SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) –2 IOUT = 1mA I REFERENCE VOLTAGE CHANGE (mV) –3 V OUT = 1mA OUT = 5V 0.01 0.01 –4 1 5 10 15 20 25 0 0.1 0.2 0.3 0.4 0.5 0.6 –1.5 –1.0 –0.5 0 0.5 1.0 1.5 REGULATOR INPUT-OUTPUT DIFFERENTIAL (V) REGULATOR INPUT-OUTPUT DIFFERENTIAL (V) REFERENCE OUTPUT CURRENT (mA) 1120A G07 1120A G08 1120A G09 1120afb For more information www.linear.com/LT1120A 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Related Parts