TPS55386

現行

具外部補償的 4.5V 至 28V 輸入、雙路 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) 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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類型 標題 日期
* Data sheet TPS5538X 3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET datasheet 2008年 9月 26日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
EVM User's guide Using the TPS55386EVM-363 A 12V Input 5.0V & 3.3V Output 3A Non-Sync Buck Conver 2008年 11月 7日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS55386EVM-363 — TPS55386 13.2V 輸入、3.3V 和 5V 雙輸出、3A 評估模組

The TPS55383EVM-363 evaluation module (EVM) is a dual non-synchronous buck converter providing fixed 5.0V and 3.3V output at up to 3A 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
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模擬型號

TPS55386 TINA-TI Average 3.3V Reference Design

SLUM048.ZIP (166 KB) - TINA-TI Reference Design
模擬型號

TPS55386 TINA-TI Average 5V Reference Design

SLUM049.ZIP (166 KB) - TINA-TI Reference Design
模擬型號

TPS55386 TINA-TI Average Spice Model

SLUM050.ZIP (4 KB) - TINA-TI Spice Model
模擬型號

TPS55386 TINA-TI Transient Reference Design

SLIM059.TSC (1033 KB) - TINA-TI Reference Design
模擬型號

TPS55386 TINA-TI Transient Spice Model

SLIM060.TSM (25 KB) - TINA-TI Spice Model
模擬型號

TPS55386 Unencrypted PSpice Average Model Package (Rev. A)

SLUM093A.ZIP (131 KB) - PSpice Model
模擬型號

TPS55386 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM112A.ZIP (141 KB) - PSpice Model
計算工具

SLVC184 TPS5538x Designer Rev 1.0

支援產品和硬體

支援產品和硬體

產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
TPS55383 具外部補償的 4.5V 至 28V 輸入、雙路 3A 輸出、300kHz 降壓轉換器 TPS55386 具外部補償的 4.5V 至 28V 輸入、雙路 3A 輸出、600kHz 降壓轉換器
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 16 Ultra Librarian

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  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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