TPS549D22 1.5V to 16V Input, 40A SWIFT™ Synchronous Step-Down Converter with Diff. Remote Sense and PMBus™ | TI.com

TPS549D22 (ACTIVE) 1.5V to 16V Input, 40A SWIFT™ Synchronous Step-Down Converter with Diff. Remote Sense and PMBus™

 

Description

The TPS549D22 device is a compact single buck converter with adaptive on-time, D-CAP3 mode control. It is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count and space-conscious power systems.

This device features full differential sense, TI integrated FETs with a high-side on-resistance of 2.9 mΩ and a low-side on-resistance of 1.2 mΩ. The device also features accurate 0.5%, 0.9-V reference with an ambient temperature range between –40°C and +125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, auto-skip or FCCM mode operation, and internal soft-start control.

The TPS549D22 device is available in 7-mm × 5-mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).

Features

  • Input Voltage Range (PVIN): 1.5 V to 16 V
  • Input Bias Voltage (VDD) Range: 4.5 V to 22 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated, 2.9-mΩ and 1.2-mΩ Power MOSFETs With 40-A Continuous Output Current
  • Voltage Reference 0.6 V to 1.2 V in 50-mV Steps Using VSEL Pin
  • ±0.5%, 0.9-VREF Tolerance Range: –40°C to +125°C Junction Temperature
  • True Differential Remote Sense Amplifier
  • D-CAP3™ Control Loop
  • Adaptive On-Time Control with 8 PMBusTM Frequency: 315 kHz, 425 kHz, 550 kHz, 650 kHz, 825 kHz, 900 kHz, 1.025 MHz, 1.125 MHz
  • Temperature Compensated and Programmable Current Limit with RILIM and OC Clamp
  • Choice of Hiccup or Latch-Off OVP or UVP
  • VDD UVLO External Adjustment by Precision EN
  • Prebias Start-up Support
  • Eco-mode™ and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD
  • Standard VOUT_COMMAND and VOUT_MARGIN (HIGH and LOW)
  • Pin-Strapping and On-the-Fly Programming
  • Fault Reporting and Warning
  • NVM Backup for Selected Commands
  • 1-MHz PMBus with PEC and SMB_ALRT#
  • Create a Custom Design Using the TPS549D22 With the WEBENCH® Power Designer

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WEBENCH® Designer TPS549D22

  Min   Max Range
Vin  V 1.5 to 16.0V
Vout  V 0.6 to 5.5V
Iout  A ≤ 40A
Ambient Temp  °C -40 to 85°C

Parametrics

Compare all products in Buck converters (integrated switch) Email Download to Excel
Part number Order 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)
TPS549D22 Order now 1.5     16     0.6     5.5     40     1     315     1125     2     Adjustable Current Limit
Enable
Light Load Efficiency
PMBus
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining
Adaptive/Dynamic Voltage Scaling    
D-CAP3     80     -40 to 85     Catalog     LQFN-CLIP | 40     Converter     40LQFN-CLIP: 35 mm2: 5 x 7 (LQFN-CLIP | 40)    
TPS548B22 Order now 1.5     18     0.6     5.5     25     1     425     1050     2     Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable
Differential Remote Sense    
D-CAP3     80     -40 to 125     Catalog     LQFN-CLIP | 40     Converter     40LQFN-CLIP: 35 mm2: 5 x 7 (LQFN-CLIP | 40)    
TPS548D21 Order now 1.5     16     0.6     5.5     40     1     425     1050     2     Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining
Adaptive/Dynamic Voltage Scaling
Differential Remote Sense
Differential Remote Sense    
D-CAP3     80     -40 to 125     Catalog     LQFN-CLIP | 40     Converter     40LQFN-CLIP: 35 mm2: 5 x 7 (LQFN-CLIP | 40)    
TPS548D22 Order now 1.5     16     0.6     5.5     40     1     425     1050     2     Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable
Differential Remote Sense    
D-CAP3     80     -40 to 125     Catalog     LQFN-CLIP | 40     Converter     40LQFN-CLIP: 35 mm2: 5 x 7 (LQFN-CLIP | 40)    
TPS549B22 Order now 1.5     18     0.6     5.5     25     1     315     1125     2     Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
PMBus
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable
Voltage Margining
Adaptive/Dynamic Voltage Scaling
Differential Remote Sense    
D-CAP3     80     -40 to 125