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.


Camera LED Flash Drivers

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
KTD231 Linear-mode 700mA Flash LED Driver
KTD233 Inductorless 1.4A Flash LED Driver in 2x3mm Package
KTD265 2MHz, 1A Flash LED Driver
KTD267 2MHz, 1.5A Flash LED Driver
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
KTD2692 2MHz, 1.5A Flash LED Driver
KTD2694 2MHz, 1.5A Flash LED Driver

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
KTD314 High Efficiency, Wide Voltage Range 20-LED Driver
KTD315 High Efficiency, Wide Voltage Range 30-LED Driver
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
KTD3118 High Efficiency Step-Up 2-Ch LED Driver, 42V OVP
KTD3119 High Efficiency Step-Up 3-Ch LED Driver, 42V OVP
KTD3122 2-Ch Step-Up LED Driver with Integrated Power Diode
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
KTD325 High Efficiency, Wide Voltage Range 30-LED RGB Driver

Over-Voltage and Surge Protection

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
KTS1601-1 SRC P-Ch Load Switch with Reverse Blocking and Output Discharge
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
KTS1656 Surge Protected, Single Input, Dual Output Load Switch Protection with OVP
KTS1670 Adjustable Over-Voltage Protection Switch
KTS1671 Load Switch with fixed and adjustable OVP
KTS1674 OVP Switch with Reverse Blocking and 100V surge Protection
KTS1676 Over-voltage Protector with Bidirectional Blocking and Surge Protection
KTS1678 OVP Switch with Single Input, Dual Output Switches with Surge Protection and Individual Enables
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
KTS1681 Ultra-Fast 100V Surge Protected OVP Switch, with VDET output and MIC function
KTS1681A 4 Amp Over-Voltage Protection IC with Sense Output
KTS1682 Ultra-Fast 100V Surge Protected OVP Switch, with VDET output and MIC function
KTS1685 OVP Switch with 100V Surge Protection
KTS1686 Ultra-Fast 100V Surge Protected OVP Switch, with Bidirectional Blocking
KTS1688 OVP Switch with Reverse Blocking and Current Limiting
KTS1689A 100V Surge Protected OVP Switch

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
  • Multiple programming options include I2C or ExpressWire 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
KTD2021 3-Channel RGB LED Driver with ExpressWire Control
KTD2022 3-Channel RGB LED Driver with ExpressWire Control
KTD2023 4-Channel RGBW LED Driver with ExpressWire Control
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™

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
KTB851 600mA Step-down Converter with Output Load Discharge
KTB851-1 600mA Step-down Converter
KTC218 Wide Output Range Step-Up Converter
KTZ8812 +/- Dual Output DC/DC Converter

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