Datasheet LT3667 (Analog Devices) - 9

LT3667
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. LDOs: LDOs: FB2, FB3 Pin Bias Current Internal Current Limit Internal Current Limit
5 350 325 VIN2/3-VOUT2/3(NOMINAL) = 1V 300 4 300 250 3 275 FB3 200 FB2 2 150 250 CURRENT LIMIT (mA) 100 T CURRENT LIMIT (mA) FB2/3 PIN BIAS CURRENT (nA) 1 A = 140°C TA = 140°C T 225 50 A = 125°C TA = 125°C TA = 25°C TA = 25°C TA = –50°C T 0 A = –50°C 0 –50 200 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 45 0 5 10 15 20 25 30 35 40 45 TEMPERATURE (°C) INPUT/OUTPUT DIFFERENTIAL (V) OUTPUT VOLTAGE (V) 3667 G28 3667 G29 3667 G30
LDOs: LDOs: LDOs: Reverse Output Current Reverse Output Current Input Ripple Rejection
1.0 50 90 ALL PINS GROUNDED V 0.9 OUT2/3 = VFB2/3 = 2V EXCEPT FOR OUT2/3 45 VIN2/3 = 0V 80 OUT3 (V 0.8 40 IN1 = 12V) 70 0.7 35 60 0.6 30 OUT2 (nA) 50 (V 0.5 25 IN1 = 12V) 40 I OUT2/3 0.4 20 CURRENT (µA) IFB2/3 0.3 30 15 0.2 10 20 I INPUT RIPPLE REJECTION (dB) I OUT2/3 OUT2/3 = 200mA 0.1 5 10 VOUT2/3 = 5V VIN2/3 = 5.8V + 50mVRMS RIPPLE 0 0 0 0 5 10 15 20 25 30 35 40 45 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k 1M 10M VOUT2/3 (V) TEMPERATURE (°C) FREQUENCY (Hz) 3667 G31 3667 G32 3667 G33
LDOs: LDOs: LDOs: Minimum Input Voltage Load Regulation Output Noise Spectral Density
2.2 1 10 I ) 2.0 L = 200mA Hz VOUT2/3 = 0.8V 1.8 VIN1 = 5V 0 1.6 1.4 –1 1 1.2 –2 1.0 VOUT2/3 = 5V 0.8 –3 V 0.1 OUT2/3 = 3.3V 0.6 VOUT2/3 = 2.5V LOAD REGULATION (mV) ∆IOUT2/3 = 1mA TO 200mA VOUT2/3 = 1.8V MINIMUM INPUT VOLTAGE (V) 0.4 –4 VOUT2/3 = 0.8V VOUT2/3 = 1.5V V 0.2 IN2/3 = 2.2V VOUT2/3 = 1.2V COUT = 10µF VIN1 = 5V VOUT2/3 = 0.8V IL = 200mA 0 –5 OUTPUT NOISE SPECTRAL DENSITY (µV/√ 0.01 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k TEMPERATURE (°C) TEMPERATURE (°C) FREQUENCY (Hz) 3667 G34 3667 G35 3667 G36 3667fb For more information www.linear.com/LT3667 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Revision History Typical Application Related Parts