Description
The PAM2306 is a dual step-down current-mode, DC-DC converter. At heavy load, the constant frequency PWM control provides excellent stability and transient response. To ensure the longest battery life in portable applications, the PAM2306 provides a power - saving Pulse-Skipping Modulation (PSM) mode to reduce quiescent current under light load operation.
The PAM2306 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, USB, and other standard power sources. The dual output voltages are available for 3.3V, 2.8V, 2.5V, 1.8V, 1.5V, 1.2V or adjustable. All versions employ 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 0.1A. Other key features include under-voltage lockout to prevent deep battery discharge.
Features
● Efficiency up to 96%
● Only 40μA (typ per channel) Quiescent Current
● Output Current: Up to 1A per Channel
● Internal Synchronous Rectifier
● 1.5MHz Switching Frequency
● Soft Start
● Under-Voltage Lockout
● Short Circuit Protection
● Thermal Shutdown
● Small 12L WDFN3x3 Package
● Pb-Free Package and RoHS Compliant
Applications
● Cellular Phone
● Portable Electronics
● Personal Information Appliances
● Wireless and DSL Modems
● MP3 Players
(Picture: Pinout)
