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Kinetic Technologies KTB8399 I2C Programmable Buck Regulators

Kinetic Technologies KTB8399 I2C Programmable Buck Regulators are precision adaptive-on-time (AOT) buck-switching regulators with class-leading accuracy, transient response, efficiency, and solution size optimized for mobile and non-mobile applications. KTB8399 regulators offer I2C programmability for output voltages in the 0.6V to 3.345V range. These devices feature soft-start and DVS with multiple programmable ramp rates. The features and performance make the KTB8399 suitable for various applications, including CPU/GPU core, DSP and baseband, DDR memory, VIO, and sensor/analog power. Available in RoHS and Green-compliant 15-bump 1.340mm x 2.045mm x 0.6mm wafer-level chip-scale package (WLCSP), the Kinetic Technologies KTB8399 I2C Programmable Buck Regulators operate within a -40°C to +85°C temperature range.

Features

  • 2.5V to 5.5V input voltage range
  • 0.6V to 3.345V programmable option for VOUT
    • 6.25mV steps below 1.39375V
    • 15mV steps above 1.44V
  • 3.0A output current
  • ±1% accuracy at TA = +25°C, ±2.5% over line, load, temperature, and setting
  • Fast transient response
  • Dynamic Voltage Scaling (DVS) with 8x ramp rates
  • 90% peak efficiency at VOUT = 1.136V
  • 2.4MHz with auto-skip at light loads, programmable forced-PWM mode
  • 46µA typical no-load supply current in skip mode
  • Tiny external components
    • L = 330nH or 470nH (2012 or 2016 metric size)
    • Cin = 10µF (0402), Cout = 2x 22µF (2x0402)
  • Soft start, overcurrent, short-circuit, under/overVIN, and thermal shutdown protections
  • 1MHz I2C interface
  • 2.4MHz switching frequency
  • -40°C to +85°C operating temperature range
  • 15-bump, lead-free WLCSP (0.4mm pitch)
    • 1.340mm x 2.045mm (0.6mm height)
    • Pin/register compatible with FAN53527

Applications

  • CPU, GPU, AP, DSP, FPGA, I/O, and XCVR power
  • HDD, LPDDR3, LPDDR4, and LPDDR5 memory power
  • Tablets, netbooks, and ultra-books
  • Smartphones, mobile internet devices, and IoT
  • DSC, drones, gaming consoles, and accessories

Typical Application Schematic

Application Circuit Diagram - Kinetic Technologies KTB8399 I2C Programmable Buck Regulators
Publicado: 2023-12-02 | Actualizado: 2024-08-22