Datasheet LT1461 (Analog Devices) - 7

LT1461
Typical perForMance characTerisTics Characteristic curves are similar for most LT1461s. Curves from the LT1461-2.5 and the LT1461-5 represent the extremes of the voltage options. Characteristic curves for other output voltages fall between these curves and can be estimated based on their output. 5V Output Impedance vs Frequency 5V Turn-On Time 5V Turn-On Time
1000 VIN VIN 6 6 4 4 C 100 OUT = 2µF COUT = 1µF 2 2 0 VOUT 0 VOUT 2V/DIV 2V/DIV 4 4 10 OUTPUT IMPEDANCE (Ω) 2 2 CIN = 1µF CIN = 1µF 0 COUT = 2µF 0 COUT = 2µF IOUT = 0 IOUT = 50mA 10.01 0.1 1 10 200µs/DIV 200µs/DIV FREQUENCY (kHz) 1461 G20 1461 G21 1461 G19
5V Transient Response to 10mA 5V Output Noise Load Step 5V Line Transient Response 0.1Hz ≤ f ≤ 10Hz
7V VIN 6V 0mA IOUT10mA VOUT VOUT 50mV/DIV 50mV/DIV OUTPUT NOISE (10µV/DIV) 1461 G22 C 1461 G23 L = 2µF CIN = 0.1µF TIME (2SEC/DIV) 1461 G24
Supply Current SHDN Pin Current vs Temperature Current Limit vs Temperature vs SHDN Input Voltage
50 140 200 180 IS 40 120 160 IS(SHDN) 140 125°C 30 100 120 25°C –55°C 100 20 80 PIN CURRENT (µA) 80 SUPPLY CURRENT (µA) CURRENT LIMIT (mA) 60 SHDN 10 60 40 20 0 40 0 –40 –20 0 20 40 60 80 100 120 –50 –25 0 25 50 75 100 125 0 5 10 15 20 TEMPERATURE (°C) TEMPERATURE (°C) SHDN PIN INPUT VOLTAGE (V) 1461 G25 1461 G26 1461fb 1461 G27 For more information www.linear.com/LT1461 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Available Options Electrical Characteristics Applications Information Simplified Schematic Package Description Revision History Typical Application Related Parts