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            PWM Controller   
            Part No. Features Vcc(Max) Pd Ic(Io) package
            L2800 Low Voltage Switching Regulator Controller 1.8V~15V 570/580mW ±40mA SOP-8 TSSOP-8
            U3525 Regulating PWM IC 8V~35V 1000mW 100mA DIP-16 SOP-16
            BA9741 Two-Channel Switching Regulator Controller 3.6v~36V 500/650mW 120mA DIP-16 SOP-16 TSSO...
            U9751B Double Channels PWM Controller 38V  - 450mA DIP-16 SOP-16 SSOP...
            TL5001 Pulse width Modulation Control Circuits 3.6v~40V - 20mA DIP-8 SOP-8
            TL494 Voltage Mode PWM Control IC 7V-40V 1000mW 200mA DIP-16 SOP-16 TSSO...
            51494 Voltage Mode PWM Control IC with Power Good S... 42V 1500mW 250mA DIP-16 SOP-16
            TL1451 Dual Pulse width Modulation Control Circuits 3.6V~50V 1000/500/700mW 20mA DIP-16 SOP-16 TSSO...
            UC2843B PWM Controllers with Low Start-Up Current 30V 800mW 1A SOP-8
            UC3842A UC3843A PWM Controllers with Low Start-Up Current 30V 1000/500mW 1A DIP-8 SOP-8
            UC3842B UC3843B PWM Controllers with Low Start-Up Current 30V 1250/702mW 1A DIP-8 SOP-8
            UC3844 UC3845 PWM Controllers with Low Start-Up Current 30V 1250/862mW 1A DIP-8 SOP-8
            UC2844 UC2845 PWM Controllers with Low Start-Up Current 30V 862mW 1A DIP-8 SOP-8
            UC3848 HIGH PERFORMANCE CURRENT 22V 862mW 45?Amax DIP-8 SOP-8
            UC3842G Current Mode PWM Controllers 30V - ±1A DIP-8 SOP-8
            TL594 pulse-width-modulation control circuit 41 - 100 SOP-16,DIP-16
            UC3846 low cost power-saving mode pwm controller for... 21 - 7 DIP-8
            UPS4602 high performance current mode power switch wi... 30 0.3 8 DIP-8
            UC34463 200khz, 2a pwm buck switching regulator 45V Internally limited 2A SOP-8/HSOP-8
            UC3863 low cost power-saving mode pwm controller for... 30 - - SOT-26
            USR1101 5V/12V synchronous buck pwm dc-dc controller 16 0.625 - SOP-8
            P4596 pwm control 3a step-down converter 40 Internally limited - HSOP-8
            USR1051 3 A synchronous buck regulator 20 - - HSOP-8
            UCS1201 low voltage synchronous buck controller 20 - SOP-8
            P2172 100khz, 1.25a high efficiency switching reg... 60 - - DIP-8
            3520 pc power supply pwm supervisor 5.5 200 - DIP-16
            UC3873 low cost power-saving mode pwm controller f... 30 - - SOT-26
            UM68TXX 128 notes dual tone melody generator pwm ou... 0V~5V - - TO-92
            UC3837 low cost power-saving mode pwm controller f... 23 - - SOT-26
            US3651 high precision cc/cv primary-side pwm power s... 26 - - DIP-8
            U8021 voltage mode pwm controller with linear powe... 18 - - SOP-14
            US3702 high performance current mode power switch wi... 30 - - DIP-8
            USR1021 3a synchronous buck regulator Vin= 6~18V Iin= 3.5~5mA Ifb= 200nA SOP-8
            LD1596 2A 150kHz 40V buck dc/dc converter with led d... 45 Internally limited IL=3A SOP-8
            ULD3380 high efficiency pwm buck led driver controlle... 40 0.392 Iqc=5mA SOT-26
            P34563 pwm control 3a step-down converter 38 (TJ -TA)/ θJA 3 HSOP-8
            P1596 150KHZ, 1.5A PWM buck dc/dc converter 28 Internally limited 2.25 TO-220B / TO-220-5 /...
            US2651 high precision low cost mcm power switch 7 - - DIP-8 SOP-8
            UC3856 low cost power-saving mode pwm controller fo... 30 VFB = -0.3~7V 20mA SOT-26
            US3706 current mode pwm power switch 30 - 3.0 TO-220F-6
            US1652 primary-side regulation pwm power switch VDD= -0.3~33V VCS= -0.3~7V Freq= 50KHz SOP-8
            UC3800 low cost power-saving mode pwm controller for... 30 VFB = -0.3~6V FSW = 70KHz SOP-8
            US3652 high precision cc/cv primary-side pwm power s... IDD=10mA VDD_OVP =28V BVDSS =600V DIP-8
            USR3651S high precision cc/cv primary-side pwm power s... IDD=10mA Vst =25V Ist =700uA SOP-8
            UC3973 low cost power-saving mode pwm controller for... VDD= 9~ 24V VFB = -0.3~7V IFB= 240uA SOP-8
            UC3873B low cost power-saving mode pwm controller for... 30 - - SOT-26
            3563 pc power supply supervisors 30 1000/625 10nA DIP-8 SOP-8
            US1651 primary-side regulation pwm power switch 33 - - SOP-8
            UCSR3654 high precision cc/cv primary-side pwm power s... 7 IDD=10mA - DIP-8
            UCSR3654S high precision cc/cv primary-side pwm power s... VCS = -0.3~7 VST = 25V IST = 700μA DIP-7 DIP-8
            UCSR3651S high precision cc/cv primary-side pwm power s... IDD= 10mA VST = 25V IST = 700μA DIP-7 SOP-8
            US2351 high precision low cost mcm power switch VDD= -0.3~V SOP-8
            US2351 high precision low cost mcm power switch VDD= 13V IDD OP = 2.5mA IDD ST = 20μA SOP-8
            UCS1650S high performance current mode power switch 32 Vfb = -0.3 ~ 6.5V Iop = 2.5mA SOP-8
            UCS1651S high performance current mode power switch 32 Vfb = -0.3 ~ 6.5 V Iop= 2.5mA SOP-8
            UCS1652S high performance current mode power switch 32 Vfb = -0.3 ~ 6.5 V Iop= 2.5mA DIP-8 SOP-8
            UCS1653S high performance current mode power switch Vfb=-0.3 ~ 6.5 V Iop= 2.5mA Tsofts= 4 ms DIP-8
            UCS1654S high performance current mode power switch 32 Vfb = -0.3 ~ 6.5 V Iop = 2.5mA DIP-8
            UCS1655S high performance current mode power switch 32 Vfb= -0.3 ~ 6.5 V Iop= 2.5mA DIP-8
            UC3876D low cost power-saving mode pwm controller for... 32V Vcomp = -0.3~7 V Ist = 0.25 mA SOP-8
            USR3652S high precision cc/cv primary-side pwm power s... Vcomp = -0.3~7V Idd = 10 mA Vdd_ovp = 28 V DFIP-8
            P1888 pwm control 3a step-down converter 23 Internally limited Vfb= 1.28V SOP-8
            UPSR104 high precision cc/cv primary-side pwm control... 7 IDD_OP =3mA OVP =29V SOT-26
            UCSR3652S high precision cc/cv primary-side pwm power ... VST= 25V IST= 700μA VTH(ON)= 13.5 ~ 16V DIP-7A/DIP-8/SOP-8
            UCS1603S high performance current mode power switch 24 PIN_MAX=18W VCC(MIN)=6.5 ~ 9.5V DIP-8
            UCS1604S high performance current mode power switch 24 PIN_MAX=22W VCC(MIN)=6.5 ~ 9.5V DIP-8
            UCS1605S high performance current mode power switch 24V PIN_MAX=28W VCC(MIN)=6.5 ~ 9.5V DIP-8
            UCS1602S high performance current mode power switch 32 IST =15μA IOP =5.5mA DIP-8 SOP-8
            USRB01A high precision cc/cv primary side switch VDD = -0.3 ~ 30V VVC = -0.3 ~ 7 V VC = -0.3 ~ 700 V SOP-8
            UC3869A high voltage green mode pwm controller VDD = 10 ~ 24V IHV = 0.75mA leakage = 10 μA DIP-8 SOP-8
            UT213 +3.0v to +5.5v power supply, 120kbps, multich... 6V 870 ICC = 11~ 20 mA SOP-28 SSOP-28
            UC3837L low cost power-saving mode pwm controller for... VDD= 30 V VFB= -0.3 ~ 7V TOPR= -40 ~ +125°C SOT-26
            UC3875A low cost power-saving mode pwm controller fo... VDD= 35V VFB= -0.3 ~ 7V TOPR= -40 ~ +125°C SOP-8
            UT3227 +3.0v to +5.5v power supply, 1mbps, rs-232 li... 6V 870 mW Icc= 0.3~ 2.0 mA SSOP-16
            UC3863A low cost power-saving mode pwm controller for... Vdd = 10 ~ 24V Istr = 2~ 15 μA Iop = 0.8~ 1.8 mA SOT-26 SOP-8 HSOP-8
            UCS1657S high performance current mode power switch 10 ~ 24 V IST= 2 15 μA IOP= 3.8 5.5 mA TO-220F-6
            UCS1700S high performance current mode power switch 10 ~ 24 V ISTR = 2~ 15 μA IOP =2.2 5.5 mA DIP-7A/DIP-8/SOP-8
            UCS1701S high performance current mode power switch 10 ~ 24 V ISTR = 2~ 15 μA IOP= 2.8 5.5 mA DIP-7A/DIP-8/SOP-8
            UCS1702S high performance current mode power switch 10 ~ 24 V ISTR = 2~ 15 μA IOP= 2.8 5.5 mA DIP-7A/DIP-8/SOP-8
            UCS1703S high performance current mode power switch 10 ~ 24 V ISTR = 2~ 15 μA IOP= 3.0 5.5 mA DIP-7A/DIP-8/SOP-8
            UCS1704S high performance current mode power switch 10 ~ 24 V ISTR = 2~ 15 μA IOP= 3.2 5.5 mA DIP-7A/DIP-8/SOP-8
            UCS1705S high performance current mode power switch 10 ~ 24 V ISTR = 2~ 15 μA IOP = 3.5 5.5 mA DIP-7A/DIP-8
            US1602 high performance current mode power switch 10 ~ 24 V VFB -0.3 ~ 6.5 V IST= 2 ~15 μA DIP-8 SOP-8
            USR5VA10 synchronous rectifier 15 V VPN= 45 V ICC= 80 ~ 260 μA SOT-223
            USR3652 high precision cc/cv primary-side pwm power s... VCS = -0.3 ~ 7 V VTH(ON)= 13.5 ~ 16 V VTH(OFF)= 8.2 ~ 10.5... SOP-8
            USR3651 high precision cc/cv primary-side pwm power s... 16 SOP-8
            US2652SQ low cost power-saving mode pwm controller for... 28 V 400 mW Ich ≥0.5 mA DIP-7A
            UC3873A low cost power-saving mode pwm controller for... 36 V SOT-26
            UC3873C low cost power-saving mode pwm controller for... 36 V SOT-26
            UC3816A low cost power-saving mode pwm controller for... 36 V 400 SOT-26
            UC3869H high voltage green mode pwm controller 10 ~ 24 V V FB_Open= 5.4 V V FB(IN) = 1.35 V DIP-8 SOP-8
            UC3873H low cost power-saving mode pwm controller for... V DD= 10 ~ 24 V I STR =2 ~ 15 μA I OP = 0.8 ~ 1.8 mA SOT-26
            UC3853A current mode pwm controller for forward and f... 28V SOP-8
            USR5V10X high performance synchronous rectifier V IN= -0.6 ~ 7 V V DD= 4 ~ 5.5 V SOP-8
            USR3654A high precision cc/cv primary-side pwm power s... I DD= 10 mA DIP-7A DIP-8
            U3525U regulating pwm ic 4.5 ~ 35V F O =100 ~ 400K Hz DIP-16 SOP-16
            UC3801 low cost power-saving mode pwm controller for... -0.3 ~ 36 V 400 mW SOT-26
            UC3879A low cost power-saving mode pwm controller for... -0.3 ~ 36 V 400 mW SOP-8
            UC3916A low cost power-saving mode pwm controller for... -0.3 ~ 36 V 400 mW SOP-8
            UC3849 current mode pwm controller 25V SOP-8

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