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适用于单节/两节锂离子电池应用、具有 3.3V、200mA LDO、效率为 90% 的 3.3V SEPIC 转换器

TPS61131 处于停产状态
请考虑从这些替代产品中选择一款:
open-in-new 比较替代产品
功能与比较器件相似
TPS61023 正在供货 具有 0.5V 超低输入电压的 3.7A 升压转换器 Replacement
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 ultra-low Iq or smaller package.

产品详情

Topology Flyback, SEPIC Vin (min) (V) 1.8 Vin (max) (V) 5.5 Vout (min) (V) 3.3 Vout (max) (V) 3.3 Switch current limit (typ) (A) 1.3 Type Converter 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, Synchronous Rectification Duty cycle (max) (%) 100 Operating temperature range (°C) -40 to 125 Rating Catalog
Topology Flyback, SEPIC Vin (min) (V) 1.8 Vin (max) (V) 5.5 Vout (min) (V) 3.3 Vout (max) (V) 3.3 Switch current limit (typ) (A) 1.3 Type Converter 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, Synchronous Rectification Duty cycle (max) (%) 100 Operating temperature range (°C) -40 to 125 Rating Catalog
TSSOP (PW) 16 32 mm² 5 x 6.4
  • Synchronous, Up to 90% Efficient, SEPIC
    Converter With 300-mA Output Current From
    2.5-V Input
  • Integrated 200-mA Reverse Voltage Protected
    LDO for DC-DC Output Voltage Post Regulation
    or Second Output Voltage
  • 40-µA (Typical) 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
  • APPLICATIONS
    • All Single Cell Li, Dual or Triple Cell Battery or
      USB Powered Products as MP-3 Player, PDAs,
      and Other Portable Equipment
    • Dual Input or Dual Output Mode
    • High Efficient Li-Ion to 3.3-V Conversion

All other trademarks are the property of their respective owners

  • Synchronous, Up to 90% Efficient, SEPIC
    Converter With 300-mA Output Current From
    2.5-V Input
  • Integrated 200-mA Reverse Voltage Protected
    LDO for DC-DC Output Voltage Post Regulation
    or Second Output Voltage
  • 40-µA (Typical) 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
  • APPLICATIONS
    • All Single Cell Li, Dual or Triple Cell Battery or
      USB Powered Products as MP-3 Player, PDAs,
      and Other Portable Equipment
    • Dual Input or Dual Output Mode
    • High Efficient Li-Ion to 3.3-V Conversion

All other trademarks are the property of their respective owners

The TPS6113x devices provide a complete power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or two- to four-cell Alkaline, NiCd, or NiMH batteries. The devices can generate two regulated output voltages. It provides a simple and efficient buck-boost solution for generating 3.3 V out of an input voltage that can be both higher and lower than the output voltage. The converter provides a maximum output current of at least 300 mA with supply voltages down to 1.8 V. The implemented SEPIC 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 SEPIC 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 the discontinuous conduction mode. A power good output at the SEPIC stage provides additional 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 SEPIC output or directly from the battery. The output voltage of this LDO can be programmed by an external resistor divider or is fixed internally on the chip. The LDO can be enabled separately, that is, using the power good of the SEPIC stage. The device is packaged in a 16-pin VQFN package measuring 4 mm × 4 mm (RSA) or in a 16-pin TSSOP (PW) package.

The TPS6113x devices provide a complete power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or two- to four-cell Alkaline, NiCd, or NiMH batteries. The devices can generate two regulated output voltages. It provides a simple and efficient buck-boost solution for generating 3.3 V out of an input voltage that can be both higher and lower than the output voltage. The converter provides a maximum output current of at least 300 mA with supply voltages down to 1.8 V. The implemented SEPIC 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 SEPIC 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 the discontinuous conduction mode. A power good output at the SEPIC stage provides additional 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 SEPIC output or directly from the battery. The output voltage of this LDO can be programmed by an external resistor divider or is fixed internally on the chip. The LDO can be enabled separately, that is, using the power good of the SEPIC stage. The device is packaged in a 16-pin VQFN package measuring 4 mm × 4 mm (RSA) or in a 16-pin TSSOP (PW) package.

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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 TPS6113x Synchronous SEPIC and Flyback Converter With 1.1-A Switch and Integrated LDO 数据表 (Rev. C) PDF | HTML 2015年 9月 29日
应用手册 Basic Calculation of a Boost Converter's Power Stage... (Rev. D) PDF | HTML 2022年 11月 21日
应用手册 升压转换器功率级的基本计算 (Rev. D) PDF | HTML 英语版 (Rev.D) PDF | HTML 2022年 11月 11日
应用手册 设计电压监控器的电阻分压器输入端时的 IQ与精度权衡因素 (Rev. B) PDF | HTML 英语版 (Rev.B) PDF | HTML 2021年 10月 25日
应用手册 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
应用手册 Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 2017年 11月 29日
应用手册 Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
应用手册 Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 2011年 9月 19日
模拟设计期刊 IQ:它是什么、不是什么以及如何使用 英语版 2011年 8月 17日
应用手册 优化具有内部补偿功能的 DC-DC 转换器的瞬态响应 最新英语版本 (Rev.B) 2008年 7月 15日
应用手册 最小化升压转换器开关节点处的振铃 英语版 2008年 7月 15日
EVM 用户指南 TPS61130 EVM User's Guide 2003年 4月 30日

设计和开发

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TSSOP (PW) 16 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

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