Datasheet LT3502, LT3502A (Analog Devices) - 5

LT3502/LT3502A
typical perForMance characteristics (TA = 25°C unless otherwise noted) UVLO Switching Frequency Soft-Start (SHDN)
3.5 2.5 0.9 LT3502A 0.8 3.0 2.0 0.7 2.5 0.6 0.5 2.0 1.5 (V) 0.4 V IN LT3502 1.5 1.0 0.3 1.0 FREQUENCY (MHz) 0.2 0.5 SWITCH CURRENT LIMIT (A) 0.1 0.5 0 0 0 –0.1 –50 0 50 100 150 –50 0 50 100 150 0 200 400 600 800 1000 1200 1400 1600 TEMPERATURE (°C) TEMPERATURE (°C) SHDN PIN VOLTAGE (mV) 3502 G10 3502 G11 3502 G12
SHDN Pin Current Switch Current Limit Switch Current Limit
300 1.0 1.2 0.9 250 0.8 1.0 SW PEAK CURRENT LIMIT LT3502 200 0.7 0.8 0.6 DA VALLEY CURRENT LIMIT LT3502A 150 0.5 0.6 PIN CURRENT (µA) 0.4 100 CURRENT LIMIT (A) 0.3 CURRENT LIMIT (A) 0.4 SHDN 0.2 50 0.2 0.1 0 0 0 0 5 10 15 20 25 30 35 40 45 –50 0 50 100 150 0 50 100 SHDN PIN VOLTAGE (V) TEMPERATURE (°C) DUTY CYCLE (%) 3502 G13 3502 G14 3502 G15
LT3502A Maximum VIN for Full LT3502A Maximum VIN for Full LT3502 Maximum VIN for Full Frequency (VOUT = 3.3V) Frequency (VOUT = 5V) Frequency (VOUT = 3.3V)
45 45 45 40 TA = 25°C 40 40 35 35 35 T 30 A = 85°C 30 30 TA = 25°C TA = 25°C 25 25 25 (V) (V) TA = 85°C (V) TA = 85°C V IN 20 V IN 20 V IN 20 15 15 15 10 10 10 5 5 5 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3502 G16 3502 G17 3502 G18 3502fd 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts