Due to their portability, battery-operated, tablet platforms require diverse power conversion due to multiple features and functions that operate simultaneously along with a large LCD display backlight. Since these devices are primarily battery powered, good power conversion efficiency is necessary to extend operating times between charging cycles. As with all portable products, internal circuit board component density and height requirement force the smallest solution sizes for power management devices. Kinetic Technologies offers solutions to meet the required small footprint and the high functionality tablets need for lighting, display, camera flash, DC/DC power conversion and over-voltage and surge protection IC switches.


Buck and Boost Converters

Tablet operating systems typically use highly integrated system power management ICs. However, not all voltages are available and in some point of load applications, such as camera modules or Wi-Fi/Bluetooth transceiver modules, circuitry is located some distance away from the centralized PMIC and require local regulation.

  • Point of load voltage regulators provide a local supply rail with high efficiency
  • Single output high efficiency DC/DC switching regulators can provide either a step-up or step-down voltage output
Part Number Description
KTB8330 3A, 2.4MHz, Low-Voltage, I2C Programmable Buck Regulator
KTB8371 4.7V to 17V Input, 5A Synchronous Buck Regulator with I2C Interface
KTB8372 4.7V to 18V Input, 5A Synchronous Buck Regulators with AOT Control
KTB851 600mA Step-down Converter with Output Load Discharge
KTB851-1 600mA Step-down Converter
KTC2110 3.0Mhz High Efficiency, Low IQ Synchronous Boost Converter
KTC2110A 3.0MHz High Efficiency Low IQ Synchronous Boost
KTC2115 2.5MHz 1.5A High Efficiency Low IQ Synchronous Boost
KTZ8701 6-Channel PMIC with 2 Buck Converters and 4 LDOs
KTZ8812 +/- Dual Output DC/DC Converter

Camera LED Flash Drivers

Product Highlights:

    • Many Tablets today incorporate digital camera modules for video recording features.

Camera lighting flash LED applications have a wide range of are mainly determined by camera resolution, quality and functionality.

      • Low cost / low resolution cameras may only require a single flash LED with a simple driver
      • High-resolution smartphone cameras require multiple high brightness flash LEDs that support video and torch modes

Product Highlights:

      • Single low current, low noise linear or boost flash LED drivers
      • Multi-channel high efficiency flash LED drivers that can support independent programmable LED torch and flash modes, with drive currents up to 1.5A per channel
Part Number Description
KTD2681 Flash LED Driver with Programmable 1.5A Current Source
KTD2682 2MHz, 2-Ch 1.5A+0.75A Flash LED Driver
KTD2683B 2MHz, 3-Ch 1.5A+0.75A+0.3A Flash LED Driver
KTD2684 2MHz, 2-Ch 1.5A+1.0A Flash LED Driver
KTD2686 2MHz, 3-Ch 1.5A+1.0A+0.5A Flash LED Driver
KTD2688 2MHz, 2-Ch 1.5A+1.5A Flash LED Driver
KTD2688A 2MHz, 2-Ch 1.5A+1.5A Flash LED Driver
KTD2690 Single Flash LED Driver with Programmable 1.5A Current Source
KTD2691 Inductorless, Single Flash LED Driver with Programmable 1.5A Current
KTD2692 2MHz, 1.5A Flash LED Driver
KTD2694 2MHz, 1.5A Flash LED Driver

GPIO

Kinetic Technologies’ general-purpose input/output (GPIO) technology is low voltage and offers general purpose expanders designed for microcontrollers when additional I/Os are needed, ensuring additional interconnections are kept to a minimum.

As an input, the expander programs the polarity, latch, pull-up, pull-down and interrupt functions. For a system with noisy input, our GPIO technology also provides a seamless debounce function with programmable debounce time. Working as an output, this technology can program output stage with bank/pin selectable push-pull or open-drain options, and can also program four drive strengths of the output stage to optimize rise/fall times.

GPIO technology is the perfect fit for tablets.

Part Number Description
KTS1620 Low Voltage 24-Bit I2C-bus I/O Expander
KTS1622 Low Voltage 16-Bit I2C-bus I/O Expander

LCD Backlight LED Drivers

Tablets LCD display backlights require multiple white LEDs that have large displays that consume the most significant portion of the device battery power budget. LEDs are normally connected in series and therefore require a compliance voltage significantly higher than the battery voltage.

  • Panel size and resolution determine the number of white LEDs (WLED) required to produce the necessary screen brightness
  • Dimming techniques to control the brightness can range from simple linear LED brightness control to sophisticated high efficiency PWM control to achieve contrast ratios of typically 20,000:1
  • High accuracy current sinks to provide uniform backlight across larger panel sizes
  • High efficiency boost power conversion required to minimize demands on battery power consumption and maximize the battery life between charge cycles

Product Highlights:

  • Multiple series/parallel strings of WLED drivers to match the display panel needs
  • Multiple programming options from simple PWM signal control to full-featured I2C interfaces.
  • Advanced design, low drop-out current sinks with tight linearity characteristics to maintain constant LED current accuracy over all battery voltage extremes
  • High efficiency boost converters with integrated protection against LED open and short-circuit conditions
Part Number Description
KTD2505R Step-Up LED Driver with ExpressWire or PWM Control
KTD2511C Step-Up LED Driver with PWM Control
KTD2511D Step-Up LED Driver with PWM Control
KTD3112 High Efficiency Step-Up 2-Ch LED Driver, 25V OVP
KTD3113 High Efficiency Step-Up 3-Ch LED Driver, 25V OVP
KTD3116-1 High Efficiency Step-Up 2-Ch LED Driver, 31V OVP
KTD3117-1 High Efficiency Step-Up 3-Ch LED Driver, 31V OVP
KTD3137 High Efficiency 3-Channel LED Backlight with Panel Flash Function
KTD3156 6-Ch Step-Up LED Driver with PWM-Control Mixed-Mode Dimming
KTD3156B 6-Ch Step-Up LED Driver with PWM-Control Mixed-Mode Dimming, low duty dimming
KTZ8864 High Efficiency 4-CH LED Backlight Driver with Dual LCD Bias Power
KTZ8866 High Efficiency 6-CH LED Backlight Driver with Dual LCD Bias Power

Overvoltage and Surge Protection ICs

Battery powered portable platforms like Tablets, require switches to protect external input power ports used for operation and battery charging and to control internal load circuits.

Input power port protection is a paramount concern in tablet design, as reliable power sources may not always be used.

  • Over-voltage, and surge protected load switches protect battery charge management and operating tablet circuits, by breaking the connection between the power source and the internal circuitry, in the event the device is connected to a faulty power source or subjected to an abnormal stress condition.

Product Highlights:

  • Programmable and fixed over-voltage protection (OVP) shutdown thresholds.
  • Input protection
    • Wrong adapter up to +40V
    • Reverse voltage down to -6V
    • Transient voltage protection up to 200V, compliant to IEC61000-4-2 (Level 4)
    • ESD protection compliant to ±8kV contact, ±15kV air gap and ±2kV human body model.
  • Single or dual devices with Uni or Bi-directional blocking

Integrated load switches provide internal power switching and are controlled by simple GPIO logic.

  • Eliminate the need for bias and level shift circuits associated with discrete MOSFET switches
  • Provides slew-rate limited turn-on with reverse current blocking and output discharge mode to de-select functions when not required to extend battery life.

Product Highlights:

  • Extremely low IN to OUT resistance
  • Tiny footprint
  • Operation down to 1.8V
Part Number Description
KTS1601 SRC P-Ch Load Switch with Reverse Blocking
KTS1605 SRC P-Ch Load Switch with Reverse Blocking
KTS1605-1 SRC P-Ch Load Switch with Reverse Blocking and Output Discharge
KTS1612 Dual-Input Push Button Reset IC with Two Discharge Paths
KTS1613 Dual-Input Push Button Reset IC
KTS1650B 4.5 Amp Overvoltage Protection IC with Surge Protection
KTS1656 Surge Protected, Single Input, Dual Output Load Switch Protection with OVP
KTS1662 Adjustable Overvoltage Protection Switch
KTS1663 Load Switch with fixed and adjustable OVP
KTS1668 100V Surge Protected OVP Switch, with sense output
KTS1670 Adjustable Over-Voltage Protection Switch
KTS1671 Load Switch with fixed and adjustable OVP
KTS1675 Overvoltage Protector with Bidirectional Blocking and Surge Protection
KTS1675A Overvoltage Protector with Bidirectional Blocking and Surge Protection
KTS1676 Over-voltage Protector with Bidirectional Blocking and Surge Protection
KTS1677A Low RON Load Switch with Overvoltage and Reverse Blocking Protection
KTS1678B OVP Switch with Single Input, Dual Output Switches with Surge Protection and Individual Enables
KTS1678C Surge Protected, Single Input, Dual Output Load Switch with OVP
KTS1679-1 OVP Switch with Single Input, Dual Output Switches with 10V Surge Protection, Individual Enables, Selectable OVP & BAT SNS pin
KTS1680 100V Surge Protected OVP Switch
KTS1680A 100V Surge Protected OVP Switch
KTS1680C 100V Surge Protected OVP Switch
KTS1681 Ultra-Fast 100V Surge Protected OVP Switch, with VDET output and MIC function
KTS1681A 4 Amp Overvoltage Protection IC with Sense Output
KTS1682 Ultra-Fast 100V Surge Protected OVP Switch, with VDET output and MIC function
KTS1686 Ultra-Fast 100V Surge Protected OVP Switch, with Bidirectional Blocking
KTS1688 OVP Switch with Reverse Blocking and Current Limiting
KTS1690A USB VBUS ISOURCE Load Switch with Current Limit Control
KTS1693 110V Surge Protected OVP Load Switch with OCP
KTS1696A 7ARMS VBUS Current-Sink Protection Load Switch
KTS1698 5ARMS VBUS Current-Sink Protection Load Switch
KTS1898 5ARMS 28V VBUS Current-Sink Protection Load Switch

PoE PD Controllers

Part Number Description
KTA1140 IEEE 802.3bt-Compliant, Powered Device Interface Controller

RGB LED Drivers

Multicolor RGB LEDs are often incorporated into tablet designs as function indicator lamps or for fashion lighting.

  • RGB LED drivers allow simplified programmable control of LED color and brightness

Product Highlights:

  • 3-channel RGB LED drivers permit custom color control
  • 4-channel RGBW devices allow for driving a white LED in addition to the RGB LED
  • I2C to ease integration with a wide variety of processors and operating systems
  • Wide range of ramp up/down timing for slow fade in/out effects and complex repeating patterns
  • Ultra-small package footprint
Part Number Description
KTD2026 3-Channel RGB LED Driver with I2C Control
KTD2027 4-Channel RGBW LED Driver with I2C Control
KTD2037 3-Channel RGB LED Driver with I2C Control, AutoBlinQ™
KTZ8807 3-Channel RGB LED Driver + 1-Channels Selfie Flash with I2C Control, AutoBlinQTM

USB Data Line Protection ICs

Part Number Description
KTU1000 USB Hi-Speed Switch with Fault Protection
KTU1001 USB D+/D- Hi-Speed or SBU1/2 Switch with Fault Protection
KTU1001A USB D+/D- Hi-Speed or SBU1/2 Switch with Fault Protection
KTU1101 USB Type-C Port Protector for CC and SBU Pins
KTU1108 USB Type-C Protector for CC Pins
KTU1120 USB Type-C Port Protector for CC and SBU Pins
KTU1121 USB Type-C Port Protector for CC and SBU Pins
KTU1121A USB Type-C Port Protector for CC and SBU Pins
KTU1125 USB Type-C/PD Port Protector
KTU1128 USB Type-C 28V EPR Port Protector for CC and SBU Pins
KTU1131 USB Type-C Port Protector for CC, SBU and D+/- Pins