Datasheet LT8603 (Analog Devices) - 10

LT8603
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V and PVIN3 = 3.3V, unless otherwise noted. Shutdown IQ from the Battery Overvoltage/Temperature EN/UVLO Current vs Voltage TRKSS Pull-Up Current vs Voltage Q
8 3.0 1 7 2.5 6 0 2.0 5 (µA) TA = 150°C (µA) 4 TA = 125°C 1.5 –1 BATT TA = 25°C I(V 3 TA = –50°C I EN/UVLO 1.0 TRKSS CURRENT (µA) 2 –2 0.5 1 0 0.0 –3 0 5 10 15 20 25 30 35 40 45 0 5 10 15 20 25 30 35 40 45 0 0.5 1 1.5 2 2.5 3 3.5 V V BATT (V) EN/UVLO (V) TRKSS VOLTAGE (V) 8603 G35 8603 G36 8603 G37
Channel 1 Start-Up and Dropout, Channel 2 Start-Up and RST Pull-Up Current vs Voltage RL = 20Ω Dropout, RL = 2Ω
10 VIN VIN 0 2V/DIV VOUT1 2V/DIV VOUT2 –10 CURRENT (µA) RST –20 100ms/DIV 8603 G39 100ms/DIV 8602 G40 –30 0 0.5 1 1.5 2 2.5 3 3.5 RST VOLTAGE (V) 8603 G38
Radiated EMI Performance, CISPR 25 Radiated Emission Tests with Class 5 Peak Limits
60 VERTICAL POLARIZATION 55 PEAK DETECTOR 50 45 40 35 30 25 20 15 AMPLITUDE (dBµV/m) 10 5 0 –5 CISPR 25 CLASS 5 PEAK LIMIT –10 DATA –15 30 130 230 330 430 530 630 730 830 930 1030 DC2114A DEMO BOARD FREQUENCY (MHz) 8603 EMI 01a (WITH EMI FILTER INSTALLED) VBATT = 14V, VOUT1 = 5V, VOUT2 = 3.3V, VOUT3 = 1.8V, IOUT1,2,3 = 1A fSW = 2MHz, FSELA = INTVCC , FSELB = Ground Rev. B 10 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 System Architecture Boost Controller Buck Regulators General Functions PCB Layout Thermal Considerations Typical Applications Package Description Revision History Related Parts