NCP6343: 3 A Processor - Memory Supply with Dynamic Voltage Scaling, I2C Programming. Transient load helper

The NCP6343 is a synchronous buck converter optimized to supply recent micro processors (ARM core processor, GPU), memories, that demand high power at low voltages of portable applications powered by one cell Li-ion or three cell Alkaline/NiCd/NiMH batteries. The device is able to deliver up to 3.0 A, with programmable output voltage from 0.6 V to 1.4 V. It could share the same output rail with another DCDC/LDO and works as a transient load helper. Operation at a 3 MHz switching frequency allows the use of small components. Synchronous rectification and automatic PWM/PFM transitions improve overall solution efficiency. The NCP6343 is in a space saving, low profile 1.99 x 1.34 mm CSP-15 package.

Features
  • 2.3 V to 5.5 V Input Voltage Range
  • 3 MHz Switching Frequency
  • DVS support through I2C
  • Enabling with pins or I2C
  • IC access in off mode
  • Transient Load Helper
Benefits
  • Support Latest Battery
  • Reduced output inductor and capacitor size
  • Optimizes processor power
  • Flexible enabling and disabling
  • Pre programming at low power
  • Share the same output rail with another DCDC/LDO without sinking current on shared rail
Applications
  • Battery powered applications
  • Power supply for processor with low core voltage
  • LP-DDR Memory
End Products
  • Cellular phones, smart phones, tablets
Package Drawings (1)
Document TitleDocument ID/SizeRevision
WLCSP15, 1.34x1.99567GB (55.1kB)B
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCP6343BFCCT1GActivePb-free Halide freeWLCSP-15567GB1Die Surf Tape and Reel3000$0.27
Specifications
ProductTopologyControl ModeVCC Min (V)VCC Max (V)VO Typ (V)IO Typ (A)Efficiency (%)fSW Typ (kHz)
NCP6343BFCCT1GStep-DownVoltage Mode2.35.51.2253933000
WLCSP15, 1.34x1.99 NCP6343