TPS84320 4.5-V to 14.5-V Input, 3-A Synchronous Buck, Integrated Power Solution | TI.com

TPS84320
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
4.5-V to 14.5-V Input, 3-A Synchronous Buck, Integrated Power Solution

 

Recommended alternative parts

  • LMZ31503  - The device is an EXACT EQUIVALENT in functionality and parametrics to the compared device. 

Description

The TPS84320RUQ is an easy-to-use integrated power solution that combines a 3-A DC/DC converter with power MOSFETs, an inductor, and passives into a low profile, BQFN package. This total power solution allows as few as 3 external components and eliminates the loop compensation and magnetics design process.

The 9×15×2.8 mm BQFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design with up to 95% efficiency and excellent power dissipation with a thermal impedance of 13°C/W junction to ambient. The device delivers the full 3-A rated output current at 85°C ambient temperature without airflow.

The TPS84320 offers the flexibility and the feature-set of a discrete point-of-load design and is ideal for powering performance DSPs and FPGAs. Advanced packaging technology afford a robust and reliable power solution compatible with standard QFN mounting and testing techniques.

Features

  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • Efficiencies Up To 95%
  • Wide-Output Voltage Adjust
    0.8 V to 5.5 V, with 1% Reference Accuracy
  • Optional Split Power Rail Allows
    Input Voltage Down to 1.6 V
  • Adjustable Switching Frequency
    (330 kHz to 780 kHz)
  • Synchronizes to an External Clock
  • Adjustable Slow-Start
  • Output Voltage Sequencing / Tracking
  • Power Good Output
  • Programmable Undervoltage Lockout (UVLO)
  • Overcurrent Protection - Hiccup-Mode
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to 85°C
  • Enhanced Thermal Performance: 13°C/W
  • Meets EN55022 Class B Emissions
  • For Design Help Including SwitcherPro™ visit http://www.ti.com/TPS84320

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Parametrics

Compare all products in Buck modules (integrated inductor) Email Download to Excel
Part number Order Iout (Max) (A) Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Soft start Features Iq (Typ) (mA) Regulated outputs (#) Package size: mm2:W x L (PKG) Switching frequency (Max) (kHz) Switching frequency (Min) (kHz) Switching frequency (Typ) (kHz) Topology Operating temperature range (C) Duty cycle (Max) (%) Package Group Type
TPS84320 Order now 3     4.5     14.5     0.8     5.5     Adjustable     EMI Tested
Enable
Frequency Synchronization
Power Good
Remote Sense
Tracking    
13.4     1     47B1QFN: 135 mm2: 9 x 15 (B1QFN | 47)     780     330     500     Buck     -40 to 85     100     B1QFN | 47     Module    
TPS84621 Order now 6     2.95     14.5     0.6     5.5     Adjustable     Enable
Frequency Synchronization    
13.4     1     47B1QFN: 135 mm2: 9 x 15 (B1QFN | 47)     780     250     500     Buck     -40 to 85     85     B1QFN | 47     Module