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TPS55285

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具有 I2C 接口的 23V、7A 完全集成式降压/升压转换器

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TPS55285

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产品详情

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck-Boost Type Converter Vin (min) (V) 2.4 Vin (max) (V) 22 Switching frequency (min) (kHz) 360 Switching frequency (max) (kHz) 2400 Features Adjustable current limit, Dynamic Voltage Scaling, Enable, Frequency synchronization, I2C interface, Light Load Efficiency, Load Disconnect, Output discharge, Spread Spectrum, Synchronous Rectification, USB C/PD compatible, UVLO adjustable Vout (min) (V) 0.8 Vout (max) (V) 22 Iq (typ) (µA) 720 Duty cycle (max) (%) 100 Switch current limit (typ) (A) 8
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck-Boost Type Converter Vin (min) (V) 2.4 Vin (max) (V) 22 Switching frequency (min) (kHz) 360 Switching frequency (max) (kHz) 2400 Features Adjustable current limit, Dynamic Voltage Scaling, Enable, Frequency synchronization, I2C interface, Light Load Efficiency, Load Disconnect, Output discharge, Spread Spectrum, Synchronous Rectification, USB C/PD compatible, UVLO adjustable Vout (min) (V) 0.8 Vout (max) (V) 22 Iq (typ) (µA) 720 Duty cycle (max) (%) 100 Switch current limit (typ) (A) 8
WQFN-HR (VAL) 15 8.75 mm² 2.5 x 3.5
  • Programmable power supply (PPS) support for USB power delivery (USB PD)
    • Wide input voltage range: 2.4V to 22V
    • 3.0V Minimum input voltage for start-up
    • Programmable output voltage range: 0.8V to 22V with 10mV step
    • ±1% reference voltage accuracy
    • Adjustable output voltage compensation for voltage drop over the cable
    • Programmable output current limit up to 6.35A with 50mA step
  • High efficiency over entire load range
    • 92.0% efficiency at VIN = 20V, VOUT = 5V and IOUT = 5A
    • 96.0% efficiency at VIN = 12V, VOUT = 20V and IOUT = 3A
  • I2C Programming
    • Output enable(OE) On/Off
    • Slew rate of output voltage change
    • Switching frequency: 400kHz, 800kHz, 1.6MHz, 2.2MHz
    • Programmable PFM and FPWM mode at light load
    • Spread spectrum enable/disable
    • Output discharge enable/disable
  • Rich protection features
    • Input overvoltage protection
    • Output absolute overvoltage protection
    • Output relative overvoltage protection
    • Hiccup mode for output short-circuit protection
    • Thermal shutdown protection
    • 8A average inductor current limit
  • Small solution size
    • Four low RDS(ON) internal MOSFETs
    • Maximum switching frequency up to 2.2MHz
    • 2.5mm × 3.5mm HotRod™ WQFN package
  • Programmable power supply (PPS) support for USB power delivery (USB PD)
    • Wide input voltage range: 2.4V to 22V
    • 3.0V Minimum input voltage for start-up
    • Programmable output voltage range: 0.8V to 22V with 10mV step
    • ±1% reference voltage accuracy
    • Adjustable output voltage compensation for voltage drop over the cable
    • Programmable output current limit up to 6.35A with 50mA step
  • High efficiency over entire load range
    • 92.0% efficiency at VIN = 20V, VOUT = 5V and IOUT = 5A
    • 96.0% efficiency at VIN = 12V, VOUT = 20V and IOUT = 3A
  • I2C Programming
    • Output enable(OE) On/Off
    • Slew rate of output voltage change
    • Switching frequency: 400kHz, 800kHz, 1.6MHz, 2.2MHz
    • Programmable PFM and FPWM mode at light load
    • Spread spectrum enable/disable
    • Output discharge enable/disable
  • Rich protection features
    • Input overvoltage protection
    • Output absolute overvoltage protection
    • Output relative overvoltage protection
    • Hiccup mode for output short-circuit protection
    • Thermal shutdown protection
    • 8A average inductor current limit
  • Small solution size
    • Four low RDS(ON) internal MOSFETs
    • Maximum switching frequency up to 2.2MHz
    • 2.5mm × 3.5mm HotRod™ WQFN package

The TPS55285 is a fully integrated synchronous buck-boost converter that is optimized for converting battery voltage, USB Power Delivery (USB PD) or adaptor voltage into power supply rails. The TPS55285 integrates four 15mΩ MOSFETs to provide a high efficiency and small size solution.

The TPS55285 has a wide input voltage range from 2.4V (3.0V rising) to 22V and is capable of outputting 0.8V to 22V voltage with 10mV step to support a variety of applications. It features 8A average inductor current limit and can supply up to 7A output current in buck mode. When working in boost mode, it can deliver 60W from 12V input or 30W from 5V input.

Through the I2C interface, the output voltage of the TPS55285 can be programmed dynamically. The default output voltage is 5V when the device is enabled. The I2C interface allows for configuration of slew rate of the output voltage change, switching frequency, forced PWM mode operation.

The TPS55285 offers input and output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit and output short circuit protection. The TPS55285 also ensures safe operating with output current limit without external output current sense resistor and hiccup mode protection in sustained overload conditions.

The TPS55285 allows the use of small inductor and capacitor with high switching frequency. It is available in 2.5mm × 3.5mm QFN package.

The TPS55285 is a fully integrated synchronous buck-boost converter that is optimized for converting battery voltage, USB Power Delivery (USB PD) or adaptor voltage into power supply rails. The TPS55285 integrates four 15mΩ MOSFETs to provide a high efficiency and small size solution.

The TPS55285 has a wide input voltage range from 2.4V (3.0V rising) to 22V and is capable of outputting 0.8V to 22V voltage with 10mV step to support a variety of applications. It features 8A average inductor current limit and can supply up to 7A output current in buck mode. When working in boost mode, it can deliver 60W from 12V input or 30W from 5V input.

Through the I2C interface, the output voltage of the TPS55285 can be programmed dynamically. The default output voltage is 5V when the device is enabled. The I2C interface allows for configuration of slew rate of the output voltage change, switching frequency, forced PWM mode operation.

The TPS55285 offers input and output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit and output short circuit protection. The TPS55285 also ensures safe operating with output current limit without external output current sense resistor and hiccup mode protection in sustained overload conditions.

The TPS55285 allows the use of small inductor and capacitor with high switching frequency. It is available in 2.5mm × 3.5mm QFN package.
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* 数据表 TPS55285 22V, 8A Buck-Boost Converter with I2 C Interface 数据表 PDF | HTML 2025年 2月 21日

设计和开发

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评估板

TPS55288EVM-053 — TPS55288 工作频率为 2MHz 的降压/升压转换器评估模块

The TPS55288 is a synchronous buck-boost converter optimized for converting battery voltage or adaptor voltage into power supply rails. The TPS55288 integrates two 16-A MOSFETs of the boost leg to balance the solution size and efficiency for USB Power Delivery (USB PD) application.

The TPS55288 has (...)

用户指南: PDF | HTML
英语版 (Rev.A): PDF | HTML
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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

支持和培训

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