Datasheet LT3022, LT3022-1.2, LT3022-1.5, LT3022-1.8 (Analog Devices) - 9

LT3022/LT3022-1.2 LT3022-1.5/LT3022-1.8
TYPICAL PERFORMANCE CHARACTERISTICS Input Ripple Rejection Line Regulation Load Regulation
100 0.5 1.0 ∆V VIN = 1.15V 90 IN = 1.15V TO 10V 0.3 V 0.8 OUT = 0.2V VOUT = 0.5V 80 0.1 IL = 1mA 0.6 ∆IL = 1mA TO 1A LOAD REGULATION NUMBER REFERS 70 –0.1 0.4 TO CHANGE IN THE 200mV REFERENCE VOLTAGE 60 –0.3 0.2 50 –0.5 0 40 –0.7 –0.2 30 –0.9 –0.4 V LINE REGULATION (mV) IN = 1.5V + 0.5VP-P RIPPLE AT 120Hz LOAD REGULATION (mV) INPUT RIPPLE REJECTION (dB) 20 V –1.1 –0.6 OUT = 0.5V 10 COUT = 10µF –1.3 –0.8 IL = 1A 0 –1.5 –1.0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3022 G23 3022 G24 3022 G25
No-Load Recovery Threshold No-Load Recovery Threshold Output Noise Spectral Density
30 12 10 T ) J = 25°C Hz VOUT = 1.2V IL = 1A 25 10 V/√ TJ = 25°C Y (µ 1 20 8 IOUT(SINK) = 5mA COUT = 10µF 15 6 0.1 I C OUT(SINK) = 1mA OUT = 47µF 10 4 OUTPUT OVERSHOOT (%) 0.01 OUTPUT SINK CURRENT (mA) 5 2 0 0 OUTPUT NOISE SPECTRAL DENSIT0.001 0 5 10 15 20 –50 –25 0 25 50 75 100 125 10 100 1k 10k 100k 1M OUTPUT OVERSHOOT (%) TEMPERATURE (°C) FREQUENCY (Hz) 3022 G26 3022 G27 3022 G28
RMS Output Noise vs Load Current (10Hz to 100kHz) Start-Up from Shutdown Transient Response
200 VOUT = 1.2V 180 COUT = 10µF T 160 J = 25°C ) VOUT VOUT 140 0.5V/DIV 50mV/DIV V RMS 120 100 IOUT 80 VSHDN 1V/DIV 500mA/DIV 60 OUTPUT NOISE (µ 40 50µs/DIV 3022 G30 RL = 1.2Ω IN = 1.5V 50µs/DIV 3022 G31 V 20 VIN = 1.5V VOUT = 1.2V 0 VOUT = 1.2V IOUT = 100mA to 1A 0.01 0.1 1 10 100 1000 COUT = 10µF COUT = 22µF t LOAD CURRENT (mA) RISE = tFALL = 100ns 3022 G29 3022fb 9 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 Package Description Revision History Typical Application Related Parts