Features: ` 1.5-A Output Current
` Wide-Input Voltage (7 V to 36 V)
` Wide-Output Voltage Adjust (2.5 V to 12.6 V)
` High Efficiency (Up to 95%)
` On/Off Inhibit
` Output Current Limit
` Overtemperature Shutdown
` Operating Temp: 40°C to 85°C
` Surface Mount PackageApplicationGeneral-Purpose, Industrial Controls, HVAC Systems, Test and Measurement, Medical Instrumentation, AC/DC Adaptors, Vehicles, Marine and Avionics
Specifications
| |
UNIT |
| TA Operating free-air temperature |
Over VI range |
40°C to 85°C |
| Solder reflow temperature |
Surface temperature of module body or pins |
235°C |
| Tstg Storage temperature |
40°C to 125°C |
| VI Input surge voltage, 10 ms maximum |
38 V |
| VINH Inhibit (pin 3) input voltage |
0.3 V to 5 V |
DescriptionThe PTN78000W is a series of high-efficiency, step-down Integrated Switching Regulator (ISR), that represent the third generation in the evolution of the popular PTN78000W series of products. In new designs PTN78000W may be considered in place of the 78ST100, PT78ST100, PT5100, and PT6100 series of single in-line pin (SIP) products. The PTN78000W is smaller and lighter than its predecessors, and has either similar or improved electrical performance characteristics. The case-less, double-sided package, also exhibits improved thermal characteristics, and is compatible with TI's roadmap for RoHS and lead-free compliance.
Operating from a wide-input voltage range of 7 V to 36 V, the PTN78000W provides high-efficiency, step-down voltage conversion for loads of up to 1.5 A. The output voltage is set using a single external resistor, and may be set to any value within the range, 2.5 V to 12.6 V. The output voltage can be as little as 2 V lower than the input, allowing operation down to 7 V, with an output voltage of 5 V.
The PTN78000W has an integral on/off inhibit, and is suited to a wide variety of general-purpose applications that operate off 12-V, 24-V, or 28-V dc power.
PTN78000W Data Sheet
