Features: *60-m MOSFET Switches for High Efficiency at 3-A Continuous Output Source or Sink Current
*0.9-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.3-V Fixed Output Voltage Devices With 1% Initial Accuracy
*Internally Compensated for Low Parts Count
*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 CostApplicationLow-Voltage, High-Density Systems With Power Distributed at 5 V or 3.3 V
Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
Broadband, Networking and Optical Communications Infrastructure
Portable Computing/Notebook PCsPinout
Specifications
| |
TPS54310 |
| Input voltage range, VI |
VIN, SS/ENA, SYNC |
-0.3 V to 7 V |
| RT |
-0.3 V to 6 V |
| VSENSE |
-0.3 V to 4 V |
| BOOT |
-0.3 V to 17 V |
| Output voltage range, VO |
VBIAS, PWRGD, COMP |
-0.3 V to 7 V |
| PH |
-0.6 V to 10 V |
| Source current, IO |
PH |
Internally Limited |
| COMP, VBIAS |
6 mA |
| Sink current |
PH |
6 A |
| COMP |
6 mA |
| SS/ENA,PWRGD |
10 mA |
| Voltage differential |
AGND to PGND |
0.3 V |
| Operating virtual junction temperature range, TJ |
-40 to 125 |
| Storage temperature, Tstg |
-65 to 150 |
| Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds |
300 |
Description As members of the SWIFT family of dc/dc regulators, the TPS54311, TPS54312, TPS54313, TPS54314,TPS54315 and TPS54316 low-input-voltage high-output-current synchronous-buck PWM converters integrate all required active components. Included on the substrate with the listed features are a true, high performance,voltage error amplifier, TPS54311, TPS54312, TPS54313, TPS54314,TPS54315 and TPS54316 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 TPS54311, TPS54312, TPS54313, TPS54314,TPS54315 and TPS54316 devices are available in a thermally enhanced 20-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.
TPS54312 Data Sheet
