Datasheet LTC3308A (Analog Devices) - 8

LTC3308A
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. Start−Up W Start–Up Waveforms, aveforms, Start−Up W Start–Up Waveforms, aveforms, Start−Up W Start–Up Waveforms, aveforms, Forced Continuous Mode Forced Continuous Mode Pulse Skip Mode Pulse Skip Mode Burst Mode Operation
EN EN EN 2V/DIV 2V/DIV 2V/DIV VOUT 500mV/DIV V V OUT OUT 500mV/DIV 500mV/DIV IL 500mA/DIV IL IL 500mA/DIV 500mA/DIV PGOOD PGOOD PGOOD 2V/DIV 2V/DIV 2V/DIV 200µs/DIV 3308A G28 200µs/DIV 3308A G29 200µs/DIV 3308A G30 3.3VIN to 1.2VOUT, 2MHz Typical Application 3.3VIN to 1.2VOUT, 2MHz Typical Application 3.3VIN to 1.2VOUT, 2MHz Typical Application RLOAD = 120Ω RLOAD = 120Ω RLOAD = 120Ω
Switching W Switching Waveforms, aveforms, Switching Waveforms, Switching Waveforms, aveforms, Forced Continuous Mode Forced Continuous Mode Pulse Skip Mode Burst Mode Operation Burst Mode Operation
SW SW 2.5V/DIV 5V/DIV SW 2V/DIV I I L L 200mA/DIV 500mA/DIV IL 500mA/DIV VOUT VOUT VOUT 5mV/DIV 10mV/DIV 10mV/DIV 200ns/DIV 3308A G31 4µs/DIV 3308A G32 800ns/DIV 3308A G33 3.3V 5.0V IN to 1.2VOUT, 2MHz Typical Application IN to 1.2VOUT, 2MHz Application 3.3VIN to 1.2VOUT, 2MHz Typical Application C C OUT = 44µF, L = 330nH, ILOAD=500mA OUT = 44µF, L = 330nH, ILOAD = 2mA COUT = 44µF, L = 330nH, ILOAD=100mA
Load Transient Response, Load Transient Response, Load Transient Response, Load Transient Response, Load Transient Response, Load Transient Response, Forced Continuous Mode Forced Continuous Mode Pulse Skip Mode Burst Mode Operation Burst Mode Operation
ILOAD ILOAD ILOAD 2A/DIV 2A/DIV 2A/DIV IL IL IL 2A/DIV 2A/DIV 2A/DIV VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV 8µs/DIV 3308A G34 10µs/DIV 3308A G35 10µs/DIV 3308A G36 3.3VIN to 1.2VOUT, 2MHz Typical Application 3.3VIN to 1.2VOUT, 2MHz Typical Application 3.3VIN to 1.2VOUT, 2MHz Typical Application COUT = 44µF, L = 330nH COUT = 44µF, L = 330nH COUT = 44µF, L = 330nH LOAD STEP: 50mA TO 3A (10A/µs) LOAD STEP: 50mA TO 3A (10A/µs) LOAD STEP: 50mA TO 3A (10A/µs) Rev. 0 8 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts