TPS548D22 1.5V to 16V Input, 40A SWIFT™ Synchronous Step-Down Converter with Differential Remote Sense | TI.com

TPS548D22 (ACTIVE)

1.5V to 16V Input, 40A SWIFT™ Synchronous Step-Down Converter with Differential Remote Sense

1.5V to 16V Input, 40A SWIFT™ Synchronous Step-Down Converter with Differential Remote Sense  - TPS548D22
 

Description

The TPS548D22 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 TPS548D22 device is available in 7-mm × 5-mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).

Features

  • Conversion 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 to Support Large Bulk Capacitors and/or Small MLCCs Without External Compensation
  • Adaptive On-Time Control with 4 Selectable Frequency Settings: 425 kHz, 650 kHz, 875 kHz, and 1.05 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 Hysteresis
  • Prebias Start-up Support
  • Eco-mode™ and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD

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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
TPS548D22 TPS53353 TPS53355 TPS543B20 TPS543C20 TPS544C25 TPS548B22 TPS548D21 TPS549D22 TPS56121 TPS56221
1.5     1.5     1.5     4     4     4.5     1.5     1.5     1.5     4.5     4.5    
16     15     15     19     16     18     18     16     16     14     14    
0.6     0.6     0.6     0.6     0.6     0.5     0.6     0.6     0.6     0.6     0.6    
5.5     5.5     5.5     5.5     5.5     5     5.5     5.5     5.5     12     12    
40     20     30     25     40     30     25     40     40     15     25    
1     1     1     1     1     1     1     1     1     1     1    
425     250     250     300     300     200     425     425     315     300     300    
1050     1000     1000     2000     2000     1000     1050     1050     1125     1000     1000    
2     0.32     0.32     3     4.3     7.7     2     2     2     2.5     2.5    
Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Enable
Frequency Synchronization
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable    
Adjustable Current Limit
Enable
Frequency Synchronization
N/A
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification    
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Frequency Synchronization
PMBus
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining    
Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable    
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining    
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
PMBus
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining    
Adjustable Current Limit
Enable
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Enable
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification    
D-CAP3     D-CAP     D-CAP     Current Mode     Current Mode     Voltage Mode     D-CAP3     D-CAP3     D-CAP3     Voltage Mode     Voltage Mode    
80     90     90     70     70     80     80     80     80     93     93    
-40 to 125     -40 to 85     -40 to 85