Penerangan
FEATURES
- 3.3V, 5V, 12V, and adjustable output versions
- Adjustable version output voltage range
- Guaranteed 5A output load current
- Input voltage range up to 40V
- 150KHz fixed frequency internal oscillator
- Excellent line and load regulation
- Thermal shutdown and current limit protection
DESCRIPTION
The LM1501AG series of regulators are monolithic integrated circuits that provide all the active functions for a step-down switching regulator, capable of driving a 5A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and they include internal frequency compensation and a fixed-frequency oscillator. The LM1501AG series operates at a switching frequency of 150kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators.
Other features include a guaranteed ±4% tolerance on output voltage under specified input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 80µA standby current. Self-protection features include a two stage frequency reducing current limit for output switch and an over temperature shutdown for complete protection under fault conditions.
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