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TPS61120

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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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open-in-new 比较替代产品
功能与比较器件相同但引脚有所不同。
TPS61098 正在供货 具有集成 LDO 的低输入电压、4.3V 输出电压、同步升压转换器 For applications requiring smaller package or smaller output current.
TPS610982 正在供货 具有集成 LDO 的低输入电压、4.3V 输出电压、同步升压转换器 For applications requiring smaller package or smaller output current.
TPS610981 正在供货 具有集成 LDO 的低输入电压、3.3V 输出电压、同步升压转换器 For applications requiring smaller package or smaller output current.
TPS61023 正在供货 具有 0.5V 超低输入电压的 3.7A 升压转换器 Not integrated LDO, smaller package and higher output current

TPS61120

正在供货
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产品详情

Rating Catalog Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 5.5 Vout (min) (V) 2.5 Switch current limit (typ) (A) 1.6 Features Enable, Light Load Efficiency, Load Disconnect, Power good, Synchronous Rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004 Duty cycle (max) (%) 100
Rating Catalog Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 5.5 Vout (min) (V) 2.5 Switch current limit (typ) (A) 1.6 Features Enable, Light Load Efficiency, Load Disconnect, Power good, Synchronous Rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004 Duty cycle (max) (%) 100
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm) VQFN (RSA) 16 16 mm² (4 mm × 4 mm)
  • 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
  • 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

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.

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.
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* 数据表 TPS6112x Synchronous Boost Converter With 1.1-A Switch and Integrated LDO 数据表 (Rev. D) PDF | HTML 2015-5-28

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