TPS53915 (ACTIVE)

1.5V to 18V Input (4.5V to 25V Bias), 12-A Synch Step-Down SWIFT™ Converter w/ PMBus™

 

Description

The TPS53915 is a small-sized, synchronous buck converter with an adaptive on-time D-CAP3 control mode. The device offers ease-of-use and low external-component count for space-conscious power systems.

This device features high-performance integrated MOSFETs, accurate 0.5% 0.6-V reference, and an integrated boost switch. Competitive features include very-low external-component count, fast load-transient response, auto-skip mode operation, internal soft-start control, and no requirement for compensation. The device also features programmability and fault report via PMBus™ to simplify the power supply design.

A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS53915 is available in a 28-pin QFN package and is specified from –40°C to 85°C ambient temperature.

Features

  • Integrated 13.8- and 5.9-mΩ MOSFETs Support
    12-A Continuous Output Current
  • Adjustments Available Through PMBus™
    • Voltage Margin and Adjustment
    • Soft-Start Time
    • Power-On Delay
    • VDD UVLO Level
    • Fault Reporting
    • Switching Frequency
    • Supports All Ceramic Output Capacitors
    • Reference Voltage 600 mV ±0.5% Tolerance
    • Output Voltage Range: 0.6 V to 5.5 V
    • D-CAP3™ Control Mode With Fast Load-Step
      Response
    • Auto-Skipping Eco-Mode™ for High Light-
      Load Efficiency
    • FCCM for Tight Output Ripple and Voltage
      Requirements
    • Eight Selectable Frequency Settings from
      200 kHz to 1 MHz
    • 3.5 mm × 4.5 mm, 28-Pin, QFN Package

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Parametrics Compare all products in Buck Converter (Integrated Switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
TPS53915 TPS53513 TPS53515 TPS54020 TPS548A20 TPS549A20
1.5    1.5    1.5    4.5    4.5    4.5   
18    18    18    17    20    20   
0.6    0.6    0.6    0.6    0.6    0.6   
5.5    5.5    5.5    5    5.5    5.5   
12    8    12    10    15    15   
1    1    1    1    1    1   
250    250    250    200    250    250   
1000    1000    1000    1200    1000    1000   
1.35    1.35    1.35    0.6    1.35    1.35   
Dynamic Voltage Scaling
Enable
Light Load Efficiency
PMBus
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Voltage Margining   
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Phase Interleaving
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking   
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
PMBus
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable
Voltage Margining   
D-CAP3    D-CAP3    D-CAP3    Current Mode    D-CAP3    D-CAP3   
80    80    80    98    50    50   
-40 to 85    -40 to 85    -40 to 85    -40 to 150    -40 to 125    -40 to 125   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
VQFN-CLIP    VQFN-CLIP    VQFN-CLIP    VQFN-HR    VQFN-CLIP    VQFN-CLIP   
New! Interactive Design
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WEBENCH® Designer TPS53915

  Min   Max Range
Vin  V 4.5 to 18.0V
Vout  V 0.6 to 5.5V
Iout  A ≤ 12A
Ambient Temp  °C -40 to 85°C


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