AP3428DNTR-G1

AP3428DNTR-G1 is a AP3428 series 1A step-down DC-DC buck converter. At heavy load, the constant-frequency PWM control performs excellent stability and transient response. No external compensation components are required. The AP3428 supports a range of input voltages from 2.5V to 5.5V, allowing the use of a single Li+/Li-polymer cell, multiple Alkaline/NiMH cell, and other standard power sources. The AP3428 employs internal power switch and synchronous rectifier to minimize external part count and realize high efficiency. During shutdown, the input is disconnected from the output and the shutdown current is less than 1μA. Other key features include over-temperature and short circuit protection, and under-voltage lockout to prevent deep battery discharge. Typical applications include post DC-DC voltage regulation, set top boxes, notebook computer and PAD.

• Adjustable output voltage range from 600mV to 5.5V
• 100% duty cycle operation
• Internal soft start
• No external compensation required
• Current limit protection
• Thermal shutdown
• 1.5MHz switching frequency
• 95% efficiency
• 6 pin UDFN-EP package
• Operating temperature range from -40 to +85°C

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.