TPS566250 4.5V to 17V Input, 6A Synchronous Step-Down Converter With VID Control | TI.com

TPS566250 (ACTIVE)

4.5V to 17V Input, 6A Synchronous Step-Down Converter With VID Control

 

Description

The TPS566250 is a synchronous buck converter that enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count and low standby current solution.

After the initial power-up, the output voltage can be changed by codes sent to the IC via an I2C compatible VID Control bus.

The main control loops of the TPS566250 use the D-CAP2™ mode control which provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Advanced Eco-mode™ operation at light loads. Advanced Eco-mode™ allows the TPS566250 to maintain high efficiency during lighter load conditions. The TPS566250 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors.

The device offers on chip overcurrent, undervoltage lockout and thermal shutdown protection.

Features

  • Integrated FETs Optimized for Lower Duty Cycle
    Applications
    • 44 mΩ (High Side) and 23 mΩ (Low Side)
  • Output Voltage Range: 0.6 V to 1.87 V with
    5.5-mV Feedback Voltage Step
  • VID Control with Multibyte Interface with
    Read-Back
  • ±1% Output Voltage at 25°C for VID Control at
    12 V VIN / 1.1 V VOUT
  • D-CAP2™ Control Mode
  • Advanced Eco-mode™ for High Efficiency at Light
    Load and Low Output Voltage Ripple
  • 650-kHz Switching Frequency
  • Fixed Soft Start: 1 ms
  • Monotonic Pre-Biased Soft Start
  • Hiccup Timer for Overload Protection

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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)
TPS566250 TPS51362 TPS53318 TPS53319 TPS53353 TPS53355 TPS56520 TPS56628 TPS56720
4.5     3     1.5     1.5     1.5     1.5     4.5     4.5     4.5    
17     22     22     22     15     15     17     18     17    
0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.76     0.6    
1.87     2     5.5     5.5     5.5     5.5     1.87     5.5     1.87    
6     10     8     14     20     30     5     6     7    
1     1     1     1     1     1     1     1     1    
500     800     250     250     250     250     500     650     500    
500     800     1000     1000     1000     1000     500     650     500    
0.9     0.1     0.32     0.32     0.32     0.32     0.92     0.95     0.92    
Enable
Light Load Efficiency
Power Good
Synchronous Rectification
UVLO Adjustable
Adaptive/Dynamic Voltage Scaling    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
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    
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    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Voltage Margining
Adaptive/Dynamic Voltage Scaling    
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Voltage Margining
Adaptive/Dynamic Voltage Scaling    
D-CAP2     D-CAP2     D-CAP     D-CAP     D-CAP     D-CAP     D-CAP2     D-CAP2     D-CAP2    
80     87     90     90     90     90     80     85     80    
-40 to 85     -10 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
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