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TPS54383

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具有内部补偿的 4.5V 至 28V 输入、双路 3A 输出、300kHz 降压转换器

产品详情

Vin (min) (V) 4.5 Vin (max) (V) 28 Vout (min) (V) 0.8 Vout (max) (V) 25.2 Iout (max) (A) 3 Iq (typ) (mA) 1.8 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 300 Features Enable, Phase Interleaving Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 2 Control mode current mode Duty cycle (max) (%) 90 Type Converter
Vin (min) (V) 4.5 Vin (max) (V) 28 Vout (min) (V) 0.8 Vout (max) (V) 25.2 Iout (max) (A) 3 Iq (typ) (mA) 1.8 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 300 Features Enable, Phase Interleaving Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 2 Control mode current mode Duty cycle (max) (%) 90 Type Converter
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • 4.5-V to 28-V Input Range
  • Output Voltage Range 0.8 V to 90% of Input
    Voltage
  • Output Current Up to 3 A
  • Two Fixed Switching Frequency Versions:
    • TPS54383: 300 kHz
    • TPS54386: 600 kHz
  • Three Selectable Levels of Overcurrent Protection
    (Output 2)
  • 0.8-V 1.5% Voltage Reference
  • 2.1-ms Internal Soft-Start
  • Dual PWM Outputs 180° Out-of-Phase
  • Ratiometric or Sequential Startup Modes Selectable
    by a Single Pin
  • 85-mΩ Internal High-Side MOSFETs
  • Current Mode Control
  • Internal Compensation
  • Pulse-by-Pulse Overcurrent Protection
  • Thermal Shutdown Protection at +148\xC2°C
  • 14-Pin PowerPAD™ HTSSOP package
  • 4.5-V to 28-V Input Range
  • Output Voltage Range 0.8 V to 90% of Input
    Voltage
  • Output Current Up to 3 A
  • Two Fixed Switching Frequency Versions:
    • TPS54383: 300 kHz
    • TPS54386: 600 kHz
  • Three Selectable Levels of Overcurrent Protection
    (Output 2)
  • 0.8-V 1.5% Voltage Reference
  • 2.1-ms Internal Soft-Start
  • Dual PWM Outputs 180° Out-of-Phase
  • Ratiometric or Sequential Startup Modes Selectable
    by a Single Pin
  • 85-mΩ Internal High-Side MOSFETs
  • Current Mode Control
  • Internal Compensation
  • Pulse-by-Pulse Overcurrent Protection
  • Thermal Shutdown Protection at +148\xC2°C
  • 14-Pin PowerPAD™ HTSSOP package

The TPS54383 and TPS54386 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, soft-start time, and control loop compensation, these converters provide many features with a minimum of external components. 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 may be configured to allow either ratio-metric or sequential startup sequencing. Additionally, the two outputs may be powered from different sources.

The TPS54383 and TPS54386 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, soft-start time, and control loop compensation, these converters provide many features with a minimum of external components. 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 may be configured to allow either ratio-metric 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 TPS5438x Dual 3-A Non-Synchronous Converters With Integrated High-Side MOSFET 数据表 (Rev. C) PDF | HTML 2014年 12月 15日
用户指南 TPS54383 Step-Down Converter Evaluation Module User's Guide (Rev. D) PDF | HTML 2021年 10月 13日

设计和开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

评估板

TPS54383EVM — TPS54383 12V 输入、双路 5V 和 3.3V 输出、2A 评估模块

The TPS54383EVM evaluation module (EVM) is a dual non-synchronous buck converter providing fixed 5.0 V and 3.3 V output at up to 2 A each from a 12 V input bus.

The EVM is designed to start up from a single supply, so no additional bias voltage is required for start-up. The module uses the TPS54383 (...)

用户指南: PDF | HTML
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仿真模型

TPS54383 TINA-TI Average 3.3V Reference Design

SLUM035.ZIP (165 KB) - TINA-TI Reference Design
仿真模型

TPS54383 TINA-TI Average 5V Reference Design

SLUM036.ZIP (165 KB) - TINA-TI Reference Design
仿真模型

TPS54383 TINA-TI Average Spice Model (Rev. A)

SLUC124A.ZIP (4 KB) - TINA-TI Spice Model
仿真模型

TPS54383 TINA-TI Transient Reference Design

SLUM071.TSC (1070 KB) - TINA-TI Reference Design
仿真模型

TPS54383 TINA-TI Transient Spice Model

SLUM072.TSM (25 KB) - TINA-TI Spice Model
仿真模型

TPS54383 Unencrypted PSpice Average Model Package (Rev. A)

SLUM089A.ZIP (122 KB) - PSpice Model
仿真模型

TPS54383 Unencrypted PSpice Transient Model Package (Rev. A)

SLLM057A.ZIP (184 KB) - PSpice Model
模拟工具

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

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HTSSOP (PWP) 14 查看选项

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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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