Datasheet LTC3388-1, LTC3388-3 (Analog Devices) - 5

LTC3388-1/LTC3388-3
TYPICAL PERFORMANCE CHARACTERISTICS RP,BUCK/RN,BUCK UVLO vs Temperature IPEAK vs Temperature vs Temperature
2.8 180 2.0 170 1.8 2.6 NMOS UVLO RISING 160 1.6 (V) (Ω) 2.4 (mA) 150 1.4 UVLO FALLING V UVLO I PEAK PMOS R DS(ON) 140 1.2 2.2 130 1.0 2.0 120 0.8 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 338813 G04 338813 G05 338813 G06
1.2V Output vs Temperature 1.5V Output vs Temperature Operating Waveforms (LTC3388-1) (LTC3388-1)
1.24 1.54 VOUT SLEEP THRESHOLD 50mV/DIV 1.22 SLEEP THRESHOLD 1.52 AC-COUPLED 1.20 1.50 V WAKE-UP THRESHOLD SW WAKE-UP THRESHOLD 1.48 2V/DIV 1.18 1.46 (V) 1.16 (V) 0V 1.44 V OUT 1.14 V OUT INDUCTOR 1.42 CURRENT 1.12 100mA/DIV 1.40 PGOOD FALLING 1.10 PGOOD FALLING 0mA 1.38 5µs/DIV 338813 G07 1.08 1.36 VIN = 5.5V, VOUT = 1.8V ILOAD = 20mA 1.06 1.34 L = 22µH, C –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 OUT = 47µF TEMPERATURE (°C) TEMPERATURE (°C) 338813 G08 338813 G09
1.8V Output vs Temperature 2.5V Output vs Temperature 2.8V Output vs Temperature (LTC3388-1) (LTC3388-1) (LTC3388-3)
1.85 2.55 2.90 SLEEP THRESHOLD SLEEP THRESHOLD 2.85 SLEEP THRESHOLD 2.50 1.80 WAKE-UP THRESHOLD WAKE-UP THRESHOLD 2.80 2.45 WAKE-UP THRESHOLD 1.75 2.75 (V) (V) (V) 2.40 2.70 V OUT 1.70 V OUT V OUT 2.65 2.35 PGOOD FALLING 2.60 PGOOD FALLING 1.65 2.30 PGOOD FALLING 2.55 1.60 2.25 2.50 –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) 338813 G10 338813 G11 338813 G12 338813fa For more information www.linear.com/LTC3388 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 Application Related Parts