TPS54310 3V to 6V Input, 3A Synchronous Step-Down Converter | TI.com

TPS54310 (ACTIVE) 3V to 6V Input, 3A Synchronous Step-Down Converter

 

Recommended alternative parts

  • TPS54318  -  Newer 2.95 to 6V, 3A converter in 3x3mm QFN

Description

As a member of one of TI’s families of dc/dc regulators, the TPS54310 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 provides high performance under transient conditions; an undervoltage-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 TPS54310 device is available in a thermally enhanced 20-pin HTSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. TI provides evaluation modules to aid in quickly achieving high- performance power supply designs to meet aggressive equipment development cycles.

Features

  • 60-mΩ MOSFET switches for high efficiency at 3-A continuous output source or sink current
  • Adjustable output voltage down to 0.9 V With 1% accuracy
  • Externally compensated for design flexibility
  • 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

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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)
TPS54310 Order now 3     6     0.9     3.3     3     1     280     700     6.2     Enable
Frequency Synchronization
Power Good
Synchronous Rectification    
Voltage Mode     87     -40 to 125     Catalog     HTSSOP | 20     Converter     20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)    
TPS54110 Order now 3     6     0.9     4.5     1.5     1     280     700     4.2     Enable
Frequency Synchronization
Power Good
Synchronous Rectification    
Voltage Mode     90     -40 to 85     Catalog     HTSSOP | 20     Converter     20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)