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TI Introduces Flexible 40-V Boost Converter with Integrated 1.2-A Switch

2 mm x 2 mm High-Power Switch Enables Boost or SEPIC Designs in Industrial and Portable Applications

Dec 10, 2007

DALLAS (Dec. 10, 2007) - Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced a tiny, high-voltage boost converter with an integrated 40-V, 1.2-A FET and a wide input-voltage range of 3-V to 18-V. The high-efficiency device supports boost, SEPIC (single-ended primary inductor converter) and flyback topologies, which are used to regulate single or dual Li-Ion battery inputs. Available in a 2 mm x 2 mm QFN package, the converter simplifies design in industrial or medical point-of-load applications, such as 5-V to 12-V or 12-V to 24-V systems. See: www.ti.com/tps61170-pr.

The TPS61170 operates at a fixed switching frequency of 1.2 MHz, allowing the use of tiny, low-profile inductors and low-value ceramic input and output capacitors. The boost converter features single-wire digital serial interface and pulse width modulation (PWM) inputs, which allows the device to dynamically adjust the output voltage during operation. Protection features of the TPS61170 include soft-start, over-current limit and over-temperature protection.

Key features of TPS61170:

  • 3-V to 18-V input voltage range
  • Integrated 40-V, 1.2-A FET switch
  • 1.2-MHz fixed switching frequency
  • Greater than 90 percent efficiency
  • Programmable reference voltage using PWM signal or single-wire digital interface
  • Built-in soft start and over-current limit

Pricing and Availability

The TPS61170 is available today in volume from TI and its authorized distributors. Suggested resale pricing in quantities of 1,000 units is $1.40. Evaluation modules, application notes and TI's power management selection tools are available through power.ti.com.