TPS61240

illustrate

The TPS6124x device is a high-efficiency DC-DC converter synchronization step optimized for products powered by a three-cell alkaline, nickel-cadmium or nickel-metal hydride battery, or a single lithium-ion or lithium-polymer battery. The TPS6124x supports output currents up to 450 mAh. The TPS61240 has a valley with an input current limit of 500mA, while TPS61241 has a valley with an input current of 600mA.

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

The TPS6124x proposes a high impedance V OUT pin when it is off.

characteristic

• Efficiency > at 90% rated working conditions
• Output voltage accuracy of ± 2% for total DC 5.0V
• Typical quiescent current of 30μA
• Class lines and transients of optimal loads
• The wide V range is from 2.3V to 5.5V
• The output current is up to 450 mA
• Automatic PFM/PWM mode conversion
• Low ripple power supply is stored under light load conditions to improve efficiency
• Internal soft-start, 250μs typical start-up time
• Typical operating frequency of 3.5MHz
• The load is disconnected during shutdown
• Current overload and thermal shutdown protection
• Three surface mount external components (one multilayer ceramic capacitor inductor and two ceramic capacitors)
• 整体解决方案尺寸2
• It is available in a 6-pin WCSP package and a 2×2 SON package
• apply
  • USB-OTG applications
  • Portable HDMI app
  • Mobile phones, smartphones
  • Laptop, handheld computer