Datasheet LTC3525-3, LTC3525-3.3, LTC3525-5 (Analog Devices) - 6

LTC3525-3/ LTC3525-3.3/LTC3525-5
Typical perForMance characTerisTics TA = 25°C unless otherwise noted. LTC3525-5 Load Regulation LTC3525-5 Load Regulation Switching Frequency vs VIN
2.5 2.5 1200 VIN = 2.4V VIN = 3.6V L = 10µH 2.0 2.0 1100 1.5 1.5 LTC3525-5 1000 1.0 1.0 (%) (%) 900 OUT 0.5 OUT 0.5 COUT = 22µF 800 0 COUT = 22µF 0 700 –0.5 –0.5 COUT = 10µF LTC3525-3.3 600 CHANGE IN V –1.0 C FREQUENCY (kHz) OUT = 10µF CHANGE IN V –1.0 –1.5 –1.5 500 –2.0 –2.0 400 –2.5 –2.5 300 0 20 40 60 80 100 120 140 0 50 100 150 200 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 LOAD (mA) LOAD (mA) VIN (V) 3525 G09 3525 G10 3525 G11
Light Load Burst Frequency VOUT Variation vs Temperature Startup Delay Coming Out of vs Load (Normalized to 25°C) Shutdown
40 0.40 120 35 0.30 100 30 0.20 (%) 80 25 0.10 Y (µs) OUT 20 –0.00 60 COUT = 10µF 15 –0.10 40 CHANGE IN V BURST FREQUENCY (kHz) 10 –0.20 SWITCHING DELA COUT = 22µF 20 5 –0.30 0 –0.40 0 0.1 1 10 –50 –25 0 25 50 75 100 125 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 LOAD (mA) TEMPERATURE (oC) VIN (V) 3525 G13 3525 G12 3525 G14
LTC3525-3.3 Input Current and LTC3525-3.3 Output Voltage VOUT at Start-Up Ripple
VIN = 1.2V IOUT 5mA I V OUT OUT 40mA 1V/DIV 50mV/DIV INPUT IOUT CURRENT 80mA 100mA/DIV 3525 G15 500µs/DIV 3525 G16 VIN = 1.2V 50µs/DIV COUT = 10µF 3525fc 6 For more information www.linear.com/LTC3525 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Applications Package Description Revision History Typical Application Related Parts