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基于TPS61029高效升压转换器

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发表于 2018-11-7 17:32:54 | 显示全部楼层 |阅读模式
  1 Features
  96% Efficient Synchronous Boost Converter
  Output Voltage Remains Regulated When Input Voltage Exceeds Nominal Output Voltage
  Device Quiescent Current: 25 µA (Typ)
  Input Voltage Range: 0.9 V to 6.5 V
  Fixed and Adjustable Output Voltage Options Up to 5.5 V
  Power Save Mode for Improved Efficiency at Low Output Power
  Low Battery Comparator
  Low EMI-Converter (Integrated Anti-ringing Switch)
  Load Disconnect During Shutdown
  Overtemperature Protection
  Small 3-mm × 3-mm VSON-10 Package
  2 Applications
  All One-Cell, Two-Cell, and Three-Cell Alkaline, NiCd or NiMH, or One-Cell Li-Ion or Li-Polymer Battery-Powered Products
  Portable Audio Players
  PDAs
  Cellular Phones
  Personal Medical Products
Camera White LED Flash Lights
该产品品牌下其它产品相关信息可咨询:https://www.iczoom.com/brand/509-c-1-20.html
  3 Description
  The TPS6102x family of devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 200 mA while using a single-cell alkaline battery, and discharge it down to 0.9 V. The device can also be used for generating 5 V at 500 mA from a 3.3-V rail or a Li-Ion battery. The boost converter is based on a fixed-frequency, pulse width modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents the converter enters the power save mode to maintain a high efficiency over a wide-load current range. The Power Save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum peak current in the boost switch is limited to a value of 800 mA, 1500 mA, or 1800 mA depending on the version of the device.
  The TPS6102x devices keep the output voltage regulated even when the input voltage exceeds the nominal output voltage. The output voltage can be programmed by an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode. The device is packaged in a 10-pin VSON PowerPAD™ package measuring 3 mm x 3 mm (DRC).
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