Product details


Input voltage (type) DC/DC Topology Boost, Current Mode Vin (Min) (V) 2.5 Vin (Max) (V) 6 Iout (Max) (A) 1.2 Iq (Typ) (mA) 8.5 Features Load Disconnect During Shutdown Operating temperature range (C) -40 to 85 Dimming method Analog, PWM open-in-new Find other Illumination LED drivers

Package | Pins | Size

DSBGA (YZG) 12 0 mm² 2.004 x 1.5 VSON (DRC) 10 9 mm² 3.00 x 3.00 open-in-new Find other Illumination LED drivers


  • Four Operational Modes
    • Torch and Flash up to ILED = 1200 mA
    • Voltage-Regulated Boost Converter: 4.5 V,
      5 V, and 5.25 V
    • Shutdown: 0.3 µlA (Typical)
  • Total Solution Circuit Area < 25 mm2
  • Up to 96% Efficiency
  • I2C-Compatible Interface up to 400 kbps
  • Integrated LED Turnon Safety Timer
  • Zero Latency TX-Masking Input (TPS61050)
  • Hardware Voltage Mode Selection Input
  • Integrated ADC for LED VF Monitoring
  • Integrated Low Light Dimming Mode
  • LED Disconnect During Shutdown
  • Open and Shorted LED Protection
  • Overtemperature Protection
  • Available in a 12-Pin NanoFree™ (CSP) and
    10-Pin QFN Packaging
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The TPS6105x device is based on a high-frequency synchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency PWM control scheme using small external components, minimizing input ripple current.

The 2-MHz switching frequency allows the use of small and low profile 2.2-µH inductors. To optimize overall efficiency, the device operates with only a 250-mV LED feedback voltage.

The TPS6105x device not only operates as a regulated current source, but also as a standard voltage-boost regulator. This additional operating mode can be useful to supply other high-power devices in the system, such as a hands-free audio power amplifier, or any other component requiring a supply voltage higher than the battery voltage (refer to TPS61052).

For highest flexibility, the LED current or the desired output voltage can be programmed through an I2C compatible interface. To simplify flash synchronization with the camera module, the device offers a trigger pin (FLASH_SYNC) for fast LED turnon time.

When the TPS6105x is not in use, it can be put into shutdown mode through the I2C-compatible interface, reducing the input current to 0.3 µA (typical). During shutdown, the LED pin is high impedance to avoid leakage current through the LED.

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Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Software development

SLUC569.ZIP (301 KB)
Software for TPS6105x Evaluation Modules
TPS6105XEVM-SW The TPS6105x EVM Software provides a software interface for the TPS6105x EVM boards. Use this software to change the TPS6105x IC registers via the USB Interface Adapter.

The software checks for new updates when started (Microsoft Internet Explorer 6 required).

Software Requirements:

  • Microsoft Windows 2000 or Newer Operating System
  • Microsoft .Net Framework 2.0
    (NOTE: It is advised to install this component independently. This EVM software will attempt to install it if (...)

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SLVC122.ZIP (199 KB)

CAD/CAE symbols

Package Pins Download
DSBGA (YZG) 12 View options
VSON (DRC) 10 View options

Ordering & quality

Information included:
  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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