ANALOG DEVICES ADP2108AUJZ-3.0-R7 DC-DC Switching Buck Regulator, Fixed, 2.3 to 5.5V in, 3V / 0.6A Out, TSOT-5

ADP2108AUJZ-3.0-R7 is a high efficiency, low quiescent current stepdown dc-to-dc converter. The total solution requires only three tiny external components. It uses a proprietary, high speed current mode, constant frequency PWM control scheme for excellent stability and transient response. To ensure the longest battery life in portable applications, the ADP2108 has a power save mode that reduces the switching frequency under light load conditions. The ADP2108 runs on input voltages of 2.3V to 5.5V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources. The maximum load current of 600mA is achievable across the input voltage range. The ADP2108 has an internal soft start and is internally compensated. Applications include PDAs and palmtop computers, wireless handsets, digital audio, portable media players, digital cameras, GPS navigation units.

• Input voltage range from 2.3V to 5.5V, uses tiny multilayer inductors and capacitors
• Current mode architecture for fast load and line transient response, 3V output voltage
• 100% duty cycle low dropout mode, internal synchronous rectifier
• Internal compensation, internal soft start
• Current overload protection, thermal shutdown protection
• Output voltage accuracy is +2% maximum at (PWM mode, TA = 25°C)
• Oscillator frequency is 3MHz typ at (ILOAD = 200mA, TA = 25°C)
• DC operating current is 18µA typical at (ILOAD = 0mA, device not switching, TA = 25°C)
• Shutdown current is 0.2µA typical at (EN = 0V, TA = TJ = -40°C to +125°C)
• Operating ambient temperature range from -40°C to +125°C, 5-lead TSOT package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party