Datasheet LTC3100 (Analog Devices) - 7

LTC3100
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise specified. Step-Up DC/DC Converter Load Step Response, 50mA-150mA Load Step Response, 5mA-100mA Fixed Frequency Mode Burst Mode Operation Enabled
VBST COUT = 10µF VBST COUT = 20µF IOUT IOUT 100mA/DIV 100mA/DIV VBST VBST 50mV/DIV 50mV/DIV 3100 G12 100µs/DIV 3100 G13 100µs/DIV
LDO Regulator Dropout Voltage vs VOUT and Temperature (IOUT = 100mA) Ripple Rejection Soft-Start Time
0.250 40 LDO VLDO = 1.5V COUT = 2.2µF ) 0.225 35 0.200 30 V BST_VLDO 0.175 25 RUNLDO VLDO = 2.5V 2V/DIV TAGE ( 0.150 20 0.125 PSRR (dB) 15 VLDO = 5V VLDO T 0.100 A = 125°C 10 1V/DIV DROPOUT VOL V 3100 G16 0.075 VLDO = 3.3V T 5 OUT = 3V A = 85°C 100µs/DIV IOUT = 50mA C 0.050 OUT = 2.2µF 0 –45 –30 –15 0 15 30 45 60 75 90 0.1 1 10 100 1000 10000 TEMPERATURE (°C) FREQUENCY (Hz) 6105 G14 3100 G15
Burst Mode Operation Ripple Rejection Load Step Response, 10mA-60mA
LDO COUT = 2.2µF LDO COUT = 2.2µF BOOST RIPPLE 20mV/DIV 50mA/DIV LDO RIPPLE VLDO 20mV/DIV 100mV/DIV 3100 G17 3100 G18 5µs/DIV 200µs/DIV 3100fb For more information www.linear.com/LTC3100 7 Document Outline Features Description Applications 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