Datasheet LTC3525L-3 (Analog Devices) - 3

LTC3525L-3
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Maximum Output Current vs VIN Maximum Startup Load vs VIN (for VOUT to Drop 2.5%) (Resistive Load) No-Load Input Current vs VIN
300 30 30 250 25 25 200 20 20 (mA) 150 15 (µA) 15 I OUT I IN LOAD (mA) 100 10 10 50 5 5 0 0 0 0.5 1.0 1.5 2.0 2.5 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 1.0 1.5 2.0 2.5 3.0 VIN (V) VIN (V) VIN (V) 3525L G01 3525L G02 3525L G03
Efficiency and Power Loss Light Load Burst Frequency vs Load Load Regulation vs Load
100 100 2.5 40 VIN = 1.2V 90 2.0 35 1.5 80 10 POWER LOSS (mW) 30 EFFICIENCY 1.0 70 (%) 25 OUT 0.5 COUT = 22µF 60 1 0 20 POWER LOSS C –0.5 C OUT = 10µF OUT = 10µF EFFICIENCY (%) 50 15 CHANGE IN V –1.0 40 0.1 BURST FREQUENCY (kHz) 10 –1.5 COUT = 22µF 30 VIN = 2.4V –2.0 5 VIN = 1.2V 20 0.01 –2.5 0 0.01 0.1 1 10 100 1000 0 10 20 30 40 50 60 70 80 0.1 1 10 LOAD (mA) LOAD (mA) LOAD (mA) 3525L G24 3525L G06 3525L G12
VOUT Variation vs Temperature Startup Delay Coming Out of (Normalized to 25°C) Shutdown
0.4 120 0.3 100 0.2 (%) 80 0.1 Y (µs) OUT 0 60 –0.1 40 CHANGE IN V –0.2 SWITCHING DELA 20 –0.3 –0.4 0 –40–30–20–10 0 10 20 30 40 50 60 70 80 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 TEMPERATURE (°C) VIN (V) 3525L G13 3525L G14 3525lfa 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Package Description Revision History Typical Applications Related Parts