TPS65268-Q1 4-V to 8-V, 3-A, 2-A Triple Synchronous Step-Down Converter | TI.com

TPS65268-Q1 (ACTIVE)

4-V to 8-V, 3-A, 2-A Triple Synchronous Step-Down Converter

 

Description

The TPS65268-Q1 device incorporates triple-synchronous buck converters with 4- to 8-V wide input voltage. The converter with constant frequency peak current mode is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The switching frequency of the converters is adjustable from 200 kHz to 2.3 MHz with an external resistor. Operation that is 180° out-of-phase between BUCK1 and BUCK2, and BUCK3 (BUCK2 and BUCK3 run in phase) minimizes the input filter requirements.

Each buck converter in the TPS65268-Q1 device operates in forced continuous-current mode (FCCM) at light load condition for reduced output voltage ripple and improved load transient response.

The TPS65268-Q1 device features overvoltage, overcurrent, short-circuit, and overtemperature protection.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Operating Junction Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Operating Input Voltage Range 4- to 8-V Maximum Continuous Output Current 3 A, 2 A,
    2 A
  • Feedback Reference Voltage 0.6 V ±1%
  • Adjustable Clock Frequency from 200 kHz to 2.3 MHz
  • Forced Continuous Current Mode (FCCM)
  • External Clock Synchronization
  • Dedicated Enable and Soft-Start Pins for Each Buck
  • Output Voltage Power Good Indicator
  • Thermal Overloading Protection

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Parametrics

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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)
TPS65268-Q1 Order now 4     8     0.6     6     3     3     200     2300     0.6     Enable
Forced PWM
Frequency Synchronization
Over Current Protection
Power Good
Synchronous Rectification
Tracking
UVLO Adjustable    
Current Mode     100     -40 to 125     Automotive     VQFN | 32     Converter     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
TPS65263-1Q1 Order now 4     18     0.6     16     3     3     200     2300     0.6     Enable
Frequency Synchronization
Light Load Efficiency
Phase Interleaving
Power Good
Synchronous Rectification
UVLO Adjustable
Adaptive/Dynamic Voltage Scaling    
Current Mode     100     -40 to 125     Automotive     VQFN | 32     Converter     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
TPS65263-Q1 Order now 4     18     0.6     16     3     3     200     2300     0.6     Enable
Frequency Synchronization
Light Load Efficiency
Phase Interleaving
Power Good
Synchronous Rectification
UVLO Adjustable
Adaptive/Dynamic Voltage Scaling    
Current Mode     100     -40 to 125     Automotive     VQFN | 32     Converter     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)