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TPS60251 - HIGH EFFICIENCY CHARGE PUMP

Description

The TPS60251 is a high efficiency, constant frequency charge pump DC/DC converter that uses a dual mode 1× and 1.5× conversion to maximize efficiency over the input voltage range.

Features

  • 1.
  • 3.0-V to 6.0-V Input Voltage Range.
  • ×1 and ×1.5 Charge Pump.
  • Fully Programmable Current with I2C.
  • 64 Dimming Steps with 25mA Maximum (Sub and Main Display Banks).
  • 4 Dimming Steps with 80mA Maximum (DM5 for Auxiliary.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
TPS60251 www.ti.com SLVS767C – APRIL 2007 – REVISED NOVEMBER 2007 HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE FEATURES 1 • 3.0-V to 6.0-V Input Voltage Range • ×1 and ×1.5 Charge Pump • Fully Programmable Current with I2C – 64 Dimming Steps with 25mA Maximum (Sub and Main Display Banks) – 4 Dimming Steps with 80mA Maximum (DM5 for Auxiliary Application) • 2% Current Matching for Sub LEDs at Light Load Condition (Each 100µA) • 750-kHz Charge Pump Frequency • Continuous 230-mA Maximum Output Current • Auto Switching Between ×1 and ×1.
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