LC6680A SOT23-6 89%_External MOS PSR (primary side feedback) High PF value QR mode) Remarks:

LC668X series THD<10%_50W 100W 100W 150W 50w(33V/1.45A) instead of OB3635A

LC6680B SOT23-6 89%_External MOS 50W 100W 100W 150W 50w(33V/1.45 instead of MT7936

LC6682 SOP8 86%_Built-in 2A/650V 10W 12W 12W 15W 10W(33V/300mA) instead of MT79332

LC6685 DIP8 88%_Built-in 2A/650V 12W 15W 15W 18W 12W(40V/300mA) instead of MT79335

LC6686 DIP8 88%_Built-in 4A/650V 18W 20W 20W 30W 18W(60V/300mA) instead of MT79338

MT6620 SOP8 89%_External MOS 50W 60W 50W 100W 50w(33V/1.43A) 100w(33V/3A)

Instead of BP3319M / instead of SY5800 / instead of OB3330 / instead of SD6800B

MT6620C SOP8 89%_External MOS 50W 60W 50W 100W 50w(33V/1.43A) 100w(33V/3A)

Instead of BP3319M / instead of SY5800 / instead of OB3330 / instead of SD6800B

MT6622 SOT23-6 89%_External MOS 36W 50W 50W 60W 30W(33V/900mA) instead of SY5810A/ instead of SD6800A

MT6622C SOT23-6 89%_External MOS 36W 50W 50W 60W 30W (33V/900mA) instead of SY5810A/ instead of SD6800A

MT6625 SOP7 85%_Built-in 2A/650V 8W 12W 12W 13W 7W(23V/300mA) 10W(33V/300mA) BP3315

MT6623 DIP7 89%_Built-in COOL MOS 4A/650V 24W 30W 30W 36W 30W(33V/900mA)

MT6623A DIP7 89%_Built-in COOL MOS 3A/600V 20W 24W 24W 26W 20W(33V/600mA) 24W(80V/300mA)

MT6623B DIP7 88%_Built-in MOS 4A/650V 18W 20W 20W 24W 18W(60V/300mA)

MT6623D DIP8 86%_Built-in 2A/650V 10W 12W 12W 15W 12W(40V/300mA) Isolation Low PFC

MT6611 SOT23-5 89%_External MOS PSR(Primary side feedback) Low PF value DCM mode) 42W 50W 50W 60W 50W(33V/1400mA) 48W(80V/600mA)

Replaces BP3106

MT6615 DIP7 89%_Built-in 2A/650V 18W 20W 20W 22W 12W(40V/300mA) 18W(60V/300mA) instead of BP3125

MT6616 DIP7 89%_Built-in 4A/650V 24W 26W 28W 36W 24W(80V/280mA) 24W(40V/580mA) instead of BP3126

MT6617A DIP7 89%_Built-in 6A/600V 28W 33W 30W 38W 30W(33V/900mA)

MT6617 DIP7 90%_Built-in COOL MOS 4A/650V 33W 40W 36W 50W 30W(33V/900mA) 36W(60V/600mA) 48W(80V/600mA) isolated low PFC/dual winding

LC6640 SOP7 90%_External MOS PSR(Primary Side Feedback) Low PF Value DCM Mode Dual Winding 50W 60W 55W 60W 48W(80V/600mA)

LC6642 SOP7 88%_Built-in 1.5A/650V 8W 12W 12W 15W 12W(40V/300mA)

LC6644 SOP7 89%_Built-in 3A/600V 15W 18W 18W 24W 20W(33V600MA)

LC6646 DIP7 89%_Built-in 3A/600V 18W 24W 24W 30W 24W(80V300MA)

LC6647 DIP7 89%_Built-in 4A/600V 24W 26W 28W 36W 24W(80V300MA) instead of BP3167F

LC6648 DIP7 89%_Built-in 6A/600V 28W 33W 30W 40W 30W(33V/900mA)

LC6649 DIP7 90%_Built-in COOL MOS 4A/650V 33W 40W 36W 48W 30W(33V/900mA) 36W(60V/600mA) 48W(80V/600mA)

LC6670E SOT23-6 91%_External MOS PSR (Primary Side Feedback) Low PF Value DCM Mode Dual Winding, Constant Voltage and Constant Current Mode 50W 60W 50W 60W 50W(80V/600mA)

LC6672E SOP7 90%_/ 13W 18W 16W 24W 18W(60V300MA) Non-isolated low PFC

LC6833 DIP7 95%_Built-in 4A/650V Buck non-PF value QR mode 36W 40W 40W 50W 45W(150V/300mA)

Replace CL1503S/Replace BP2833A/Replace HA583 3AE LC6653 SOP7 93%_Built-in 2A/500V 28W 33W 30W 36W 30W(120V/250MA)

LC6654 SOP7 94%_Built-in 3A/500V 30W 36W 33W 40W 36W(120V/280MA)

LC6655 DIP7 94%_Built-in 2A/500V 30W 36W 33W 40W 36W(120V/280MA)

LC6656 DIP7 94%_Built-in 3A/500V 36W 40W 40W 60W 50W(160v280MA) instead of BP2867F

LC6658 DIP7 95%_Built-in 5A/500V 40W 60W 50W 75W 75W(160V450MA) non-isolated high PFC

MT6631 SOT23-6 94%_External MOS Floating Buck Architecture High PF Value QR Mode 50W 70W 50W 70W 42W(140V/300mA) 48w(80V/600mA)

Replace SY5814 LC6660 SOT23-6 93%_External MOS 50W 80W 50W 80W 48w(80V/600mA)

LC6660S SOP-8 93%_External MOS 50W 80W 50W 80W 48w(80V/600mA)

LC6662 SOP7 91%_Built-in MOS 2A/550V Field Buck structure with high PF value

QR Mode Saving VCC Capacitor THD<15%_10W 18W 12W 20W 10W(60V/150mA) 18W(150V/120mA)

LC6663 SOP7 91%_Built-in MOS 3A/500V 15W 24W 18W 26W 24W(80V/240mA)

LC6664 SOP7 91%_Built-in MOS 3A/550V 15W 26W 20W 28W 26W(80V/320mA)

LC6665 SOP7 92%_/ 21W 30W 26W 32W 30W(80V/350mA)

LC6661H SOP7 91%_Built-in MOS 1A/650V 5W 8W 10W 12W 8W(60V/120mA)

LC6662H SOP7 91%_Built-in MOS 1.5A/650V 9W 13W 13W 15W 13W(60V/220mA)

LC6663H SOP7 91%_Built-in MOS 2A/650V 10W 15W 20W 22W 10W(60V/150mA) 15W(150V/100mA)

Linear chip isolation method IC model Similar model features and application package mos tube DEMO power maximum power remarks four-way integration

LC6704 replaces RM9001D, replaces SDS3537BS Downlight, Flood Light, Certification Requirements Lamp ESOP-8 Integrated 700V 9-12W 13W Constant Power THD<15%_Three-way Integrated LC6703 / Downlight, Flood Light, Certification Requirements Lamp TO-252 -4L triple integrated 700V 9-12W 13W constant power THD<15%_single integrated

LC6701 replaces CYT1000B, replaces sm2082, replaces RM9003E bulb, downlight, T tube, panel light TO252 integrated 700V 10W 12W constant power

LC106S replaces CYT1000B, replaces SM2082, replaces RM9003E bulb, downlight, T tube, panel light ESOP-8 integrated 500V 10W 12W constant power

LC1000 replaces SM2082EGS bulb, downlight, T tube, panel light ESOP-8 integrated 500V 10W 10W