buck push pull regulator positive output step down step up step down dc dc controller ic 16 so

{"cid":"91219383","title":"SG3525AP013TR","imgUrl":"https:\/\/img.chinax.com\/nimg\/99\/c8\/0b9561f92113182df9622cd9d6fb-200x200-1.jpg","attrs":{"Category":"Integrated Circuits (ICs)\nPower Management (PMIC)\nDC DC Switching Controllers","Synchronous Rectifier":"Yes","Frequency - Switching":"100Hz ~ 400kHz","Serial Interfaces":"-","Operating Temperature":"0\u00b0C ~ 70\u00b0C (TA)","Voltage - Supply (Vcc\/Vdd)":"8V ~ 35V","Package \/ Case":"16-SOIC (0.154\", 3.90mm Width)","Function":"Step-Down, Step-Up\/Step-Down","Output Type":"Transistor Driver","Output Phases":"1","Topology":"Buck, Push-Pull","Control Features":"Enable, Soft Start","Number of Outputs":"2","Package":"Tape & Reel (TR)\nCut Tape (CT)\nDigi-Reel\u00ae","Clock Sync":"Yes","Duty Cycle (Max)":"49%","Product Status":"Active","Mounting Type":"Surface Mount","Series":"-","Supplier Device Package":"16-SO","Mfr":"STMicroelectronics","Output Configuration":"Positive","Base Product Number":"SG3525","Description":"IC REG CTRLR BCK\/PSH-PULL 16SOIC","Stock":"In Stock","Shipping Method":"LCL, AIR, Express","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram"}}

{"cid":"91219332","title":"SG3525AP013TR","imgUrl":"https:\/\/img.chinax.com\/nimg\/99\/c8\/0b9561f92113182df9622cd9d6fb-200x200-1.jpg","attrs":{"Category":"Integrated Circuits (ICs)\nPower Management (PMIC)\nDC DC Switching Controllers","Synchronous Rectifier":"Yes","Frequency - Switching":"100Hz ~ 400kHz","Serial Interfaces":"-","Operating Temperature":"0\u00b0C ~ 70\u00b0C (TA)","Voltage - Supply (Vcc\/Vdd)":"8V ~ 35V","Package \/ Case":"16-SOIC (0.154\", 3.90mm Width)","Function":"Step-Down, Step-Up\/Step-Down","Output Type":"Transistor Driver","Output Phases":"1","Topology":"Buck, Push-Pull","Control Features":"Enable, Soft Start","Number of Outputs":"2","Package":"Tape & Reel (TR)\nCut Tape (CT)\nDigi-Reel\u00ae","Clock Sync":"Yes","Duty Cycle (Max)":"49%","Product Status":"Active","Mounting Type":"Surface Mount","Series":"-","Supplier Device Package":"16-SO","Mfr":"STMicroelectronics","Output Configuration":"Positive","Base Product Number":"SG3525","Description":"IC REG CTRLR BCK\/PSH-PULL 16SOIC"}}

{"cid":"91219532","title":"TL494CNG","imgUrl":"https:\/\/img.chinax.com\/nimg\/bd\/4a\/5e48205087e4fcb334e8f7aa46fe-200x200-1.jpg","attrs":{"Category":"Integrated Circuits (ICs)\nPower Management (PMIC)\nDC DC Switching Controllers","Synchronous Rectifier":"Yes","Frequency - Switching":"200kHz","Serial Interfaces":"-","Operating Temperature":"0\u00b0C ~ 70\u00b0C (TA)","Voltage - Supply (Vcc\/Vdd)":"7V ~ 40V","Package \/ Case":"16-DIP (0.300\", 7.62mm)","Function":"Step-Down, Step-Up\/Step-Down","Output Type":"Transistor Driver","Output Phases":"1","Topology":"Buck, Push-Pull","Control Features":"Dead Time Control, Frequency Control","Number of Outputs":"2","Package":"Tube","Clock Sync":"No","Duty Cycle (Max)":"48%","Product Status":"Obsolete","Mounting Type":"Through Hole","Series":"SWITCHMODE\u2122","Supplier Device Package":"16-PDIP","Mfr":"onsemi","Output Configuration":"Positive","Base Product Number":"TL494","Description":"IC REG CTRLR BCK\/PUSH-PULL 16DIP"}}