TPS54386

現行

具內部補償的 4.5V 至 28V 輸入、雙 3A 輸出、600kHz 降壓轉換器

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Phase Interleaving Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25.2 Iq (typ) (µA) 1800 Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Phase Interleaving Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25.2 Iq (typ) (µA) 1800 Duty cycle (max) (%) 85
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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類型 標題 日期
* Data sheet TPS5438x Dual 3-A Non-Synchronous Converters With Integrated High-Side MOSFET datasheet (Rev. C) PDF | HTML 2014年 12月 15日
User guide TPS54383 Step-Down Converter Evaluation Module User's Guide (Rev. D) PDF | HTML 2021年 10月 13日
User guide TPS54x86 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 10月 13日
More literature TPS54386PWP Test Report 2008年 2月 15日

設計與開發

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開發板

TPS54386EVM — TPS54386 13.2V 輸入、雙路 5V 和 3.3V 輸出、2A 評估模組

The TPS54386EVM 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 (...)
使用指南: PDF | HTML
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模擬型號

TPS54386 TINA-TI Average 3.3V Reference Design

SLUM042.ZIP (165 KB) - TINA-TI Reference Design
模擬型號

TPS54386 TINA-TI Average 5V Reference Design

SLUM043.ZIP (165 KB) - TINA-TI Reference Design
模擬型號

TPS54386 TINA-TI Average Spice Model

SLUM044.ZIP (4 KB) - TINA-TI Spice Model
模擬型號

TPS54386 TINA-TI Transient Reference Design

SLUM077.TSC (2002 KB) - TINA-TI Reference Design
模擬型號

TPS54386 TINA-TI Transient Spice Model

SLUM078.TSM (25 KB) - TINA-TI Spice Model
模擬型號

TPS54386 Unencrypted PSpice Average Model Package (Rev. A)

SLUM094A.ZIP (127 KB) - PSpice Model
模擬型號

TPS54386 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM109A.ZIP (133 KB) - PSpice Model
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 14 Ultra Librarian

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