TPS53915 1.5V to 18V Input (4.5V to 25V Bias), 12-A Synch Step-Down SWIFT™ Converter w/ PMBus™ | TI.com

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 converters (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
Type
Package size: mm2:W x L (PKG)
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    
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
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 | 28     VQFN-CLIP | 28     VQFN-CLIP | 28     VQFN-HR | 15     VQFN-CLIP | 28     VQFN-CLIP | 28    
Converter     Converter     Converter     Converter     Converter     Converter    
28VQFN-CLIP: 16 mm2: 3.5 x 4.5 (VQFN-CLIP | 28)     28VQFN-CLIP: 16 mm2: 3.5 x 4.5 (VQFN-CLIP | 28)     28VQFN-CLIP: 16 mm2: 3.5 x 4.5 (VQFN-CLIP | 28)     15VQFN-HR: 12 mm2: 3.5 x 3.5 (VQFN-HR | 15)     28VQFN-CLIP: 16 mm2: 3.5 x 4.5 (VQFN-CLIP | 28)     28VQFN-CLIP: 16 mm2: 3.5 x 4.5 (VQFN-CLIP | 28)    

Design tool

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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