TPS54073 3V to 4V Input, 14A Synchronous Step-Down Converter for Pre-biased Outputs  |

TPS54073 (ACTIVE) 3V to 4V Input, 14A Synchronous Step-Down Converter for Pre-biased Outputs 



As a member of the SWIFT™ family of dc/dc regulators, the TPS54073 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 and flexibility in choosing the output filter L and C components; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally or 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.

For reliable power up in output precharge applications, the TPS54073 is designed to only source current during start-up.

The TPS54073 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


  • 8-m


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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)
TPS54073 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)