TPS61240

illustrate

The TPS6124x device is an efficient DC-DC converter optimized for synchronous steps powered by a three-cell alkaline, NiCd or NiMH battery, or a single Li-Ion or Li-Polymer battery. The TPS6124x supports output currents up to 450 mA. The TPS61240 has a valley with an input current limit of 500mA, while the TPS61241 has a valley with an input current of 600mA.

With 2.3V to 5.5V input voltage range devices supporting and extended voltage range batteries, it is ideal for portable applications such as mobile phones and other portable devices as power supplies. The TPS6124x boost converter is based on a quasi-constant on-time valley current mode control scheme.

The TPS6124x presents a high impedance_targetV OUT pin is closed.

characteristic

• Efficiency > at 90% rated operating conditions
• Total DC 5.0V Output Voltage Accuracy ± 2%
• Typical quiescent current of 30μA
• optimumloadof classRoutes and transients
• Wide V_rangeFrom 2.3V to 5.5V
• Output current up to 450 mA
• Automatic PFM/PWM mode conversion
• Low ripple power supply storage under light load conditions to improve efficiency
• Internal soft-start, typical start-up time of 250μs
• Typical operating frequency of 3.5MHz
• Load disconnects during shutdown
• Current overload and thermal shutdown protection
• Three surface-mount external components (one multilayer ceramic capacitor, inductor, and two ceramic capacitors)
• Overall solution size2
• Available in a 6-pin WCSP package and a 2 × 2 SON package
• apply
  • USB-OTG applications
  • Portable HDMI applications
  • Mobile phones, smartphones
  • Pocket PC, PDA