LT8652SIV#PBF

Silent Switcher 2 High Efficiency • High Frequency • Low EMI 100 Part Number 95 90 Efficiency (%) 80 75 70 65 60 55 50 VIN1 = VIN2 = 12 V fSW= 2 MHz 45 0 1 2 CH1 5 V CH2 3.3 V 3 4 Load Current (A) 5 6 Efficiency: 95% Efficient at 2 MHz 50 45 Amplitude (dBµV/m) 40 35 30 25 20 15 10 5 0 –5 LT8650S LT8650S CISPR CLASS 5 Limit CISPR 25,25, CLASS 5 Limit –10 –15 VIN Range (V) IOUT VOUT(MIN) (V) Frequency IQ Package (mm) Silent Switcher® Silent Switcher 2 Silent Switcher 2 3.0 to 65 3.4 to 65 3.4 to 65 3.5 A 8A 8A 0.8 0.8 0.8 200 kHz to 3 MHz 200 kHz to 2.2 MHz 200 kHz to 2.2 MHz 2.5 µA 2.5 µA 2.5 µA 3 × 4, 18-lead QFN 4 × 6, 32-lead LQFN 4 × 6, 32-lead LQFN Low EMI Low EMI Low EMI Silent Switcher 2 Low EMI Silent Switcher Silent Switcher 2 Silent Switcher Silent Switcher 2 Silent Switcher 2 Silent Switcher 2 Silent Switcher Silent Switcher 2 3.0 to 42 3.0 to 42 3.0 to 42 3.0 to 42 3.0 to 42 3.4 to 42 3.0 to 42 3.4 to 42 3.4 to 42 3.4 to 42 3.0 to 42 3.4 to 42 3.0 to 42 350 mA 750 mA 1.5 A 2 A/3 A peak 2 A/3 A peak 4A 2 × 2 A/3 A peak 5 A/7 A peak 5 A/7 A peak 5 A/7 A peak 2 × 4 A/6 A peak 5 A/7 A peak 15 A 0.8 0.8 0.8 0.8 0.8 0.97 0.8 0.97 0.97 0.97 0.8 0.97 0.6 200 kHz to 2.2 MHz 200 kHz to 2.2 MHz 200 kHz to 2.2 MHz 200 kHz to 2.2 MHz 200 kHz to 2.2 MHz 200 kHz to 2.2 MHz 200 kHz to 3 MHz 200 kHz to 3 MHz 200 kHz to 3 MHz 200 kHz to 3 MHz 200 kHz to 3 MHz 200 kHz to 3 MHz 200 kHz to 3 MHz 3 µA 3 µA 2.5 µA 2.5 µA 2.5 µA 2.5 µA 6 µA 2.5 µA 2.5 µA 230 µA 6.2 µA 2.5 µA 6 µA 2 × 2 DFN, 10-lead MSOP-EP 2 × 2 DFN, 10-lead MSOP-EP 2 × 2 DFN, 10-lead MSOP-EP 3 × 3, 16-lead LQFN 3 × 3 DFN, 10-lead MSOP-EP 3 × 4, 18-lead QFN 3 × 4, 20-lead LQFN 3 × 4, 18-lead QFN 4 × 4, 24-lead LQFN 4 × 4, 24-lead LQFN 4 × 6, 32-lead LQFN 4 × 3, 24-lead LQFN 4 × 7, 36-lead LQFN Silent Switcher 2 Silent Switcher 2 Silent Switcher 2 Silent Switcher 2 2.8 to 18 3.1 to 20 3.1 to 20 3.0 to 18 10 A 15 A 20 A 2 × 8 A 0.6 0.6 0.6 0.6 200 kHz to 3 MHz 400 kHz to 3 MHz 400 kHz to 3 MHz 300 kHz to 3 MHz 240 µA 2 mA 2 mA 6 µA 4 × 4, 24-lead LQFN 4 × 5, 28-lead LQFN 5 × 6, 42-ball BGA 4 × 7, 36-lead LQFN Silent Switcher 2.25 to 5.5 3 A/4 A/6 A 0.5 1 MHz to 3 MHz 45 µA 2 × 2, 12-lead LQFN Silent Switcher 2 2.25 to 5.5 10 A 0.5 500 kHz to 5 MHz 1.3 mA 3 × 3, 18-lead LQFN 65 VIN(MAX) 85 40 Silent Switcher Family 0 100 200 300 400 500 600 700 800 Frequency (MHz) LT8650S EMI/EMC Curve 5 V at 3.8 A, 3.3 V at 4.2 V, fSW = 2 MHz with Spread Spectrum VISIT ANALOG.COM 900 1000 LT8641 LT8645S/LT8646S LT8645S-2 42 VIN(MAX) LT8606 LT8607 LT8608 LT8609S LT8609A LT8614 LT8653S LT8640/LT8640-1 LT8640S LT8643S LT8650S LT8636 LT8648S 18 VIN(MAX) LT8642S LTC7151S LTC7150S LT8652S 5 VIN(MAX) LTC3307A/ LTC3308A/ LTC3309A LTC3310S Easy PCB layout OUT1 6.2 µA IQ LTC8650S 200 kHz to 3 MHz OUT2 94.4% Efficiency at 2 MHz 2 × 4 AOUT CISPR 25 Class 5 Silent Switcher 2 Technology’s Unrivaled Ease of Use Faster • Smaller • Quieter The LT8650S combines high efficiency at high frequencies and an ultralow EMI design to deliver a very compact dual output 4 A (6 A peak) synchronous step-down solution. It delivers efficiency as high as 94.4% (12 VIN to 5 VOUT) with a switching frequency of 2 MHz offering a very compact solution footprint. The LT8650S’s unique Silent Switcher 2 architecture uses four internal input capacitors as well as internal BST and INTVCC capacitors to minimize the area of the hot loops. Additionally, its fast, clean, low overshoot switching edges enable both high efficiency operation, at high switching frequencies and low EMI/EMC emissions. The internal construction uses copper pillars in lieu of bond wires and an integrated ground plane to further reduce EMI/EMC emissions. This improved EMI/EMC performance is not sensitive to PCB layout, simplifying design and reducing risk even when using two layer PCBs. The LT8650S can easily pass the automotive CISPR 25, Class 5 peak EMI limits with a 2 MHz switching frequency over its entire load range. Spread spectrum frequency modulation is also available to further lower EMI/EMC levels. XX 4 A from each channel simultaneously XX 94.4% efficiency at 2 MHz XX Up to 6 A on either channel XX Ultralow quiescent current Burst Mode® operation: XX Silent Switcher architecture: XX ■■ 6.2 μA IQ, output ripple