sc1211vxstr Semtech Corporation, sc1211vxstr Datasheet
sc1211vxstr
Available stocks
Related parts for sc1211vxstr
sc1211vxstr Summary of contents
Page 1
POWER MANAGEMENT Description The SC1211VX is a high speed, Combi-Sense®, dual out- put driver designed to drive high-side and low-side MOSFETs in a synchronous Buck converter. These drivers combined with Combi-Sense® PWM controllers, such as Semtech SC2643VX or SC2643, provide ...
Page 2
POWER MANAGEMENT Typical Application Circuit Vin (+12V) PWM Vcc (+5V) Inductor Curr ent Signal 2005 Semtech Corp 1uF 1N4148 R1 1R0 9 PGND U1 SC1211V 1uF R2 2 SC1211VX Vout ...
Page 3
POWER MANAGEMENT Absolute Maximum Ratings Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied ...
Page 4
POWER MANAGEMENT Electrical Characteristics (Cont.) Unless specified 25° ...
Page 5
POWER MANAGEMENT Timing Diagrams CO DRN PDL_BG Rising Edge Transition 2005 Semtech Corp PDH_TG R_TG 1.4V F_BG 5 SC1211VX 1. PDL_TG F_TG t t PDH_BG R_BG Falling Edge Transition www.semtech.com ...
Page 6
... Semtech Corp. Ordering Information Note: 7 VCC (1) Only available in tape and reel packaging. A reel contains 2500 devices. 6 VIN (2). SC1211VXSTRT is lead free part. 5 VPN ...
Page 7
POWER MANAGEMENT Block Diagram VCC CO PGND 2005 Semtech Corp. LOGIC UVLO CONTROL & OVERLAP PROT ECTION CIRCUIT 7 SC1211VX VIN VPN BST TG DRN BG www.semtech.com ...
Page 8
POWER MANAGEMENT Applications Information THEOR THEORY OF OPERA THEOR Y OF OPERA Y OF OPERATION Y OF OPERA TION TION TION THEOR THEOR Y OF OPERA TION The SC1211VX is a high speed, Combi-Sense®, dual out- put driver designed to ...
Page 9
POWER MANAGEMENT Applications Information (Cont.) VPN and Vout. During Q1 turn-on, Qcst turns on as well. The voltage drop across Q1 and Lo charges Ccs. During Q2 turn-on, Qcsb turns on as well. The voltage drop across Q2 and Lo ...
Page 10
POWER MANAGEMENT Applications Information (Cont.) whole during PCB layout. Refer to Semtech SC2643VX/ SC1211VX EVB Layout Guideline. For the SC1211VX driver, the following guidelines are typically recommended during PCB layout: 1. Place the SC1211VX close to the FETs for shortest ...
Page 11
... POWER MANAGEMENT Outline Drawing - Power SOIC-8 Outline Drawing - Power SOIC-8L Land Pattern - Power SOIC-8 Contact Information 2005 Semtech Corp. Semtech Corporation Power Management Products Division 200 Flynn Rd., Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 11 SC1211VX www.semtech.com ...