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AC/DC 和 DC/DC 转换器（集成 FET）

TPS55383

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具有外部补偿的 4.5V 至 28V 输入、双通道 3A 输出、300kHz 降压转换器

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功能与比较器件相似
TPS62933 正在供货 采用 SOT-583 封装的 3.8V 至 30V、3A、200kHz 至 2.2MHz、低 IQ 同步降压转换器 Wider Vin, higher frequency and lower IQ.

TPS55383

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产品详情

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 28 Vin (min) (V) 4.5 Vout (max) (V) 25.2 Vout (min) (V) 0.8 Features Enable, Phase interleaving Control mode current mode Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 300 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 1800 Duty cycle (max) (%) 90 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 28 Vin (min) (V) 4.5 Vout (max) (V) 25.2 Vout (min) (V) 0.8 Features Enable, Phase interleaving Control mode current mode Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 300 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 1800 Duty cycle (max) (%) 90 Type Converter
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • 4.5-V to 28-V Input Range
  • Output Voltage 0.8 V to 90% of Input Voltage
  • Output Current Up to 3 A
  • Two Fixed Switching Frequency Versions:
    • TPS55383: 300 kHz
    • TPS55386: 600 kHz
  • Three Selectable Levels of Overcurrent Protection (Output 2)
  • 0.8-V 1.75% Voltage Reference
  • 2.1-ms Internal Soft Start
  • Dual PWM Outputs 180° Out-of-Phase
  • Ratiometric or Sequential Startup Modes
  • Configurable as Dual Output or Two-Channel Single Output Multiphase for 6 amp Capability
  • 85-Ω Internal High-Side MOSFETs
  • Current Mode Control with External Compensation
  • Pulse-by-Pulse Overcurrent Protection
  • Thermal Shutdown Protection at +148°C
  • 16-Pin PowerPAD HTSSOP package
  • APPLICATIONS
    • Set Top Box
    • Digital TV
    • Power for DSP
    • Consumer Electronics

PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective ownersPower.
  • 4.5-V to 28-V Input Range
  • Output Voltage 0.8 V to 90% of Input Voltage
  • Output Current Up to 3 A
  • Two Fixed Switching Frequency Versions:
    • TPS55383: 300 kHz
    • TPS55386: 600 kHz
  • Three Selectable Levels of Overcurrent Protection (Output 2)
  • 0.8-V 1.75% Voltage Reference
  • 2.1-ms Internal Soft Start
  • Dual PWM Outputs 180° Out-of-Phase
  • Ratiometric or Sequential Startup Modes
  • Configurable as Dual Output or Two-Channel Single Output Multiphase for 6 amp Capability
  • 85-Ω Internal High-Side MOSFETs
  • Current Mode Control with External Compensation
  • Pulse-by-Pulse Overcurrent Protection
  • Thermal Shutdown Protection at +148°C
  • 16-Pin PowerPAD HTSSOP package
  • APPLICATIONS
    • Set Top Box
    • Digital TV
    • Power for DSP
    • Consumer Electronics

PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective ownersPower.

The TPS55383 and TPS55386 are dual output, non-synchronous buck converters capable of supporting 3-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.

With an internally-determined operating frequency and soft start time, these converters provide many features with a minimum of external components. The outputs of the two error amplifiers are accessible allowing user optimization of the feedback loop under a wide range of output filter characteristics. Channel 1 overcurrent protection is set at 4.5 A, while Channel 2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications that do not need the full load capability of both outputs.

The outputs may be enabled independently, or configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may be powered from different sources.

The TPS55383 and TPS55386 are dual output, non-synchronous buck converters capable of supporting 3-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.

With an internally-determined operating frequency and soft start time, these converters provide many features with a minimum of external components. The outputs of the two error amplifiers are accessible allowing user optimization of the feedback loop under a wide range of output filter characteristics. Channel 1 overcurrent protection is set at 4.5 A, while Channel 2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications that do not need the full load capability of both outputs.

The outputs may be enabled independently, or configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may be powered from different sources.
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类型 标题 下载最新的英语版本 日期
* 数据表 TPS5538X 3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET 数据表 2008年 9月 26日

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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