Back to Kinetic Technologies

Kinetic Technologies KTB8400 Switching Voltage Regulator

Kinetic Technologies KTB8400 Switching Voltage Regulator is a precision and unique OptiComp­™ buck switching regulator with class-leading accuracy of ±1%, fast transient response, and 90% efficiency. This voltage regulator is I²C programmable for output voltages in the 0.6V to 3.345V range and accommodates soft-start and DVS with multiple programmable ramp rates. The KTB8400 buck-switching regulator offers over-current, short-circuit, under/over VIN, and thermal shutdown protections. This device is available in RoHS and Green-compliant 15-bump 1.340mm x 2.045mm x 0.6mm wafer-level chip-scale package (WLCSP). Typical applications include CPUs, GPUs, APs, DSPs, FPGAs, tablets, netbooks, ultra-books, smartphones, mobile internet devices, IoT, DSC, drones, gaming consoles, and accessories.

Features

  • Fast PLL loop with accurate Switching frequency overload changes
  • Dynamic voltage scaling (DVS) with 8 ramp rates
  • 2.5V to 5.5V input voltage range
  • 1.3V fixed output voltage 
  • 0.6V to 3.345V programmable option for Vout
    • 6.25mV steps below 1.39375V
    • 15mV steps above 1.44V
  • 3A output current
  • ±1% accuracy at TA = 25°C
    • ±2.5% over line/load/temp/setting
  • Soft-start, overcurrent, short-circuit, under/over VIN, and thermal shutdown protections
  • Fast transient response
  • 90% peak efficiency at Vout = 1.136V
  • 2.4MHz with auto-skip at light loads
    • Programmable forced-PWM mode
  • 46uA typical no-load supply current in skip mode
  • Tiny external components
    • L = 330nH or 470nH (2012 or 2016 metric size)
    • Cin = 10µF (0402), Cout = 2×22µF (2×0402)
  • 1MHz I2C interface
  • -40°C to 85°C operating temperature range
  • 15-bump lead-free WLCSP (0.4mm pitch)
    • 1.34mm x 2.045mm (0.6mm height)
    • Pin/register compatible with FAN53527

Applications

  • CPUs, GPUs, APs, DSPs, FPGAs, I/O, and XCVR power
  • HDDs, LPDDR3, LPDDR4, and LPDDR5 memory power
  • Tablets, netbooks, and ultra-books
  • Smartphones, mobile internet devices, and IoT
  • DSC, drones, gaming consoles, and accessories

Videos

Typical Application Schematic

Application Circuit Diagram - Kinetic Technologies KTB8400 Switching Voltage Regulator

Additional Resources

Development Tool

Kinetic Technologies KTB8400AEDAA-MMEV01 Evaluation Kit

Demonstrates the KTB8400 OptiComp™ buck switching regulator for its detailed functionality.

Learn Moreabout Kinetic Technologies KTB8400AEDAA-MMEV01 Evaluation Kit View Productsrelated to Kinetic Technologies KTB8400AEDAA-MMEV01 Evaluation Kit
Published: 2024-01-02 | Updated: 2024-06-20