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TPS61120的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:直流/直流开关稳压器 - 升压稳压器
  • 功能描述:具有 200mA LDO 的可调节、效率为 95% 的升压转换器,用于单节/双节锂离子电池应用
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TPS61120的产品详情:

The TPS6112x devices provide a complete power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer by either a one-cell Li-Ion or Li-Polymer battery, or a two- to four-cell Alkaline, NiCd, or NiMH battery. The devices can generate two stable output voltages that are either adjusted by an external resistor divider or are fixed internally on the chip. The device also provides a simple solution for generating 3.3 V out of a one-cell Li-Ion or Li-Polymer battery at a maximum output current of at least 200 mA with supply voltages down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. The maximum peak current in the boost switch is limited to a value of 1600 mA.

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 discontinuous conduction mode. A power good output at the boost stage simplifies control of any connected circuits like cascaded power supply stages or microprocessors.

The built-in LDO can be used for a second output voltage derived either from the boost output or directly from the battery. The LDO can be enabled separately that is, using the power good of the boost stage. The device is packaged in a 16-pin VQFN (RSA) package measuring 4 mm × 4 mm or in a 16-pin TSSOP (PW) package.

TPS61120的优势和特性:
  • Synchronous, 95% Efficient, Boost Converter With 500-mA Output Current From 1.8-V Input
  • Integrated 200-mA Reverse Voltage Protected LDO for DC-DC Output Voltage Post Regulation or Second Output Voltage
  • 40-μA (Typical) Total Device Quiescent Current
  • Input Voltage Range: 1.8 V to 5.5 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
  • Power Good Output
  • Low EMI-Converter (Integrated Antiringing Switch)
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Available in a Small 4-mm × 4-mm VQFN-16 or in a TSSOP-16 Package
TPS61120的参数(英文):
  • Vin (Min) (V)
  • 1.8
  • Vin (Max) (V)
  • 5.5
  • Vout (Min) (V)
  • 2.5
  • Vout (Max) (V)
  • 5.5
  • Switch current limit (Typ) (A)
  • 1.6
  • Regulated outputs (#)
  • 2
  • Switching frequency (Min) (kHz)
  • 400
  • Switching frequency (Max) (kHz)
  • 600
  • Iq (Typ) (mA)
  • 0.04
  • Features
  • Enable, Light Load Efficiency, Load Disconnect, Power Good
  • Duty cycle (Max) (%)
  • 100
  • Rating
  • Catalog
TPS61120具体的完整产品型号参数及价格(美元):

TPS61120的完整型号有:TPS61120PW、TPS61120PWR、TPS61120RSAR,以下是这些产品的关键参数及官网采购报价:

TPS61120PW,工作温度:-40 to 85,封装:TSSOP (PW)-16,包装数量MPQ:90个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TPS61120PW的批量USD价格:1.534(1000+)

TPS61120PWR,工作温度:-40 to 85,封装:TSSOP (PW)-16,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TPS61120PWR的批量USD价格:1.278(1000+)

TPS61120RSAR,工作温度:-40 to 85,封装:QFN (RSA)-16,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网TPS61120RSAR的批量USD价格:1.278(1000+)

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TPS61120的评估套件:

TPS61120EVM-205 — TPS61120 评估模块

The TPS61120EVM-205 is an evaluation tool for the TPS61120 inductive boost converter with LDO in 4x4mm2 QFN. The boost stage can supply voltages up to 5.5V from input voltages in the range of 1.8V to 5.5V. The LDO stage can supply voltages down to 0.9V from input voltages in the range of 1.5V to (...)

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