Features: ` Tracks Externally Applied Reference Voltage` 30-m MOSFET Switches for High Efficiency at 8-A Continuous Output Source or Sink Current` 6% to 90% VI Output Tracking Range` Wide PWM Frequency:Fixed 350 kHz or Adjustable 280 kHz to 700 kHz` Load Protected by Peak Current Limit and Thermal...
TPS54872: Features: ` Tracks Externally Applied Reference Voltage` 30-m MOSFET Switches for High Efficiency at 8-A Continuous Output Source or Sink Current` 6% to 90% VI Output Tracking Range` Wide PWM Freque...
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US $1.45 - 2.33 / Piece
DC/DC Switching Controllers Lo Inpt Vltg Triple Ch Cntrllr
US $.97 - 1.05 / Piece
DC/DC Switching Controllers Lo Input Vltg Triple Ch Cntrlr
TPS54872 |
UNITS | ||
Input voltage range, VI | VIN, ENA |
−0.3 V to 7 |
V |
RT |
−0.3 V to 6 | ||
VSENSE, REFIN |
−0.3 V to 4 | ||
BOOT |
−0.3 V to 17 | ||
Output voltage range, VO | VBIAS, COMP, STATUS |
−0.3 V to 7 |
V |
PH |
−0.6 V to 10 | ||
Source current, IO | PH |
Internally Limited | |
COMP, VBIAS |
6 |
mA | |
Sink current, IS | PH |
12 |
|
COMP |
6 |
mA | |
ENA, STATUS |
10 | ||
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 |
As a member of the SWIFTTM family of dc/dc regulators,the TPS54872 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, TPS54872 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 3.8 V; an internally set slow-start circuit to limit in-rush currents; and a status output to indicate valid operating conditions.
The TPS54872 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPADTM 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.