TPS54910 3V to 4V Input, 9A Synchronous Step-Down Converter | TI.com

TPS54910 (ACTIVE) 3V to 4V Input, 9A Synchronous Step-Down Converter

 

Description

As a member of the SWIFT™ family of dc/dc regulators, the TPS54910 low-input voltage high-output current synchronous buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

The TPS54910 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT™ designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

Features

  • 15-m MOSFET Switches for High Efficiency at 9-A Continuous Output
  • 0.9-V to 2.5-V Adjustable Output Voltage
  • Externally Compensated With 1% Accuracy
  • Fast Transient Response
  • Wide PWM Frequency:
       Fixed 350 kHz, 550 kHz or
       Adjustable 280 kHz to 700 kHz
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Integrated Solution Reduces Board Area and Total Cost
  • APPLICATIONS
    • Low-Voltage, High-Density Systems With Power Distributed at 3.3 V
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors
    • Broadband, Networking and Optical Communications Infrastructure
    • Portable Computing/Notebook PCs

PowerPAD and SWIFT are trademarks of Texas Instruments.

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)
TPS54910 Order now 3     4     0.9     2.5     9     1     280     700     11     Enable
Frequency Synchronization
Power Good
Synchronous Rectification    
Voltage Mode     90     -40 to 85     Catalog     HTSSOP | 28     Converter     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)    
TPS54010 Order now 2.2     4     0.9     2.5     14     1     280     700     13     Enable
Frequency Synchronization
Power Good
Synchronous Rectification    
Voltage Mode     90     -40 to 85     Catalog     HTSSOP | 28     Converter     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)    
TPS54610 Order now 3     6     0.9     4.5     6     1     280     700     11     Enable
Frequency Synchronization
Power Good
Synchronous Rectification    
Voltage Mode     90     -40 to 85     Catalog     HTSSOP | 28     Converter     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)    
TPS54810 Order now 4     6     0.9     3.3     8     1     280     700     11     Enable
Frequency Synchronization
Power Good
Synchronous Rectification    
Voltage Mode     90     -40 to 85     Catalog     HTSSOP | 28     Converter     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)