CS51412: Buck Regulator, Low Voltage, 1.5 A, 260 kHz, with External Bias

The CS5141X products are 1.5A buck regulator ICs. These devices are fixed- frequency operating at 260kHz and 520kHz. The regulators use the V2 control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation for today's high- speed logic. These products accommodate input voltages from 4.5V to 40V. The CS51411 and CS51413 contain synchronization circuitry. The CS51412 and CS51414 have the option of powering the controller from an external 3.3V to 6V supply in order to improve efficiency, especially in high input voltage, light load conditions. The on-chip NPN transistor is capable of providing a minimum of 1.5A of output current, and is biased by an external "boost" capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by- cycle current limiting and frequency foldback. The CS51411 and CS51413 are functionally pin-compatible with the LT1375. The CS51412 and CS51414 are functionally pin-compatible with the LT1376.

特性
  • V2 Architecture Provides Ultra-Fast Transient Response, Improved Regulation and Simplified Design
  • 2.0% Error Amp Reference Voltage Tolerance
  • Switch Frequency Decrease of 4:1 in Short Circuit Conditions
  • BOOST pin for Bootstrapped Operation
  • Synchronization Function
  • Shutdown Lead Provides Power-Down Option
  • 85uA Quiescent Current During Power-Down
  • Thermal Shutdown
  • Soft Start
  • Pin-Compatible with LT1375 and LT1376
  • Pb-Free Packages are Available
优势
  • Reduced output capacitance
  • Accurate Output Voltage
  • Reduces Short Circuit PowerDissipation
  • Maximized Efficiency
  • Parallel Supply Operation or Noise Minimization
  • Increased system flexibility
  • Low power dissipation in stand-by mode
  • Circuit Protection
  • Increased system flexibility
  • Easy drop in replacement
应用
  • Distributed Power
终端产品
  • Battery Charger
数据表 (1)
Document TitleDocument ID/SizeRevisionRevision Date
1.5A, 260kHz and 520kHz, Low Voltage Buck Regulators with External Bias or Synchronization CapabilityCS51411/D (283.0kB)21
应用注释 (2)
Document TitleDocument ID/SizeRevisionRevision Date
CS51411 Layout RecommendationsAND8269/D (1276.0kB)0
Theory of Operation of V2 ControllersAND8276/D (924.0kB)0
封装图纸 (2)
Document TitleDocument ID/SizeRevision
5X6MM, .5MM PITCH505 (33.7kB)D
SOIC-8 Narrow Body751-07 (62.6kB)AK
产品订购型号
产品状况Compliance具体说明封装MSL*容器预算价格 (1千个数量的单价)
CS51412ED8GLifetimeAEC Qualified PPAP Capable Pb-free Halide freeBuck Regulator, Low Voltage, 1.5 A, 260 kHz, with External BiasSOIC-8751-071Tube98
CS51412EDR8GActiveAEC Qualified PPAP Capable Pb-free Halide freeBuck Regulator, Low Voltage, 1.5 A, 260 kHz, with External BiasSOIC-8751-071Tape and Reel2500$0.9866
CS51412EMNR2GLast ShipmentsAEC Qualified PPAP Capable Pb-free Halide freeBuck Regulator, Low Voltage, 1.5 A, 260 kHz, with External BiasDFN-185051Tape and Reel2500
CS51412GD8GLast ShipmentsAEC Qualified PPAP Capable Pb-free Halide freeBuck Regulator, Low Voltage, 1.5 A, 260 kHz, with External BiasSOIC-8751-071Tube98
CS51412GDR8GLifetimeAEC Qualified PPAP Capable Pb-free Halide freeBuck Regulator, Low Voltage, 1.5 A, 260 kHz, with External BiasSOIC-8751-071Tape and Reel2500$0.9466
CS51412GMNR2GLast ShipmentsAEC Qualified PPAP Capable Pb-free Halide freeBuck Regulator, Low Voltage, 1.5 A, 260 kHz, with External BiasDFN-185051Tape and Reel2500
CS51412ED8Last ShipmentsBuck Regulator, Low Voltage, 1.5 A, 260 kHz, with External BiasSOIC-8751-071Tube98
CS51412EDR8Last ShipmentsBuck Regulator, Low Voltage, 1.5 A, 260 kHz, with External BiasSOIC-8751-071Tape and Reel2500
CS51412GD8Last ShipmentsBuck Regulator, Low Voltage, 1.5 A, 260 kHz, with External BiasSOIC-8751-071Tube98
CS51412GDR8Last ShipmentsBuck Regulator, Low Voltage, 1.5 A, 260 kHz, with External BiasSOIC-8751-071Tape and Reel2500
订购产品技术参数
ProductTopologyControl ModeVCC Min (V)VCC Max (V)VO Typ (V)IO Typ (A)Efficiency (%)fSW Typ (kHz)
CS51412EDR8GStep-DownV24.5401.5260
1.5A, 260kHz and 520kHz, Low Voltage Buck Regulators with External Bias or Synchronization Capability (283.0kB) CS51414
CS51411 Layout Recommendations CS51414
Theory of Operation of V2 Controllers CS51414
5X6MM, .5MM PITCH NCP3163
SOIC-8 Narrow Body CM1216