TPS55386PWPRG4 by Texas Instruments | APACDC to DC Converters | Avnet ASIA
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TPS55386PWPRG4

Texas Instruments

Conv DC-DC Dual Step Down 4.5V to 28V 16-Pin HTSSOP EP T/R

制造商料号#: TPS55386PWPRG4

替代型号#: TPS55386PWPRG4


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描述

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替代/替换

信息

The TPS55383 and TPS55386 are dual output, non-synchronous buck converters capable of supporting 3-Aoutput 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 outputsmay be powered from different sources.

 

技术参数

  • 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 SequentialStartup Modes
  • Configurable as Dual Output or Two-Channel Single Output Multiphase for 6 amp Capability
  • 85-O 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
  • 技术特性

    描述
    寻找类似物料
    Maximum Output Current
    3 A
    Supplier Package
    HTSSOP EP
    Output Voltage
    0.8 to 25.2 V
    Operating Temperature
    -40 to 125 °C
    Type
    Step Down
    Operating Supply Voltage
    4.5 to 28 V
    Mounting
    Surface Mount
    Minimum Input Voltage
    4.5 V
    Max Processing Temp
    260
    MSL Level
    2
    Product Dimensions
    5.1 x 4.5 x 1.05 mm
    Output Type
    Adjustable
    Maximum Input Voltage
    28 V
    Switching Regulator
    Yes
    Number of Outputs
    2
    Lead Finish
    Gold
    Switching Frequency
    750 kHz
    Pin Count
    16

    ECCN / UNSPSC

    描述
    ECCN:
    EAR99
    计划交货期 B:
    8542.39.00
    HTSN:
    8542.39.00

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