Synchronous regulator reduces board space and enables highly efficient power management
The ADP2164 provides very high efficiency in a compact 4-mm x 4-mm QFN 16-lead package. The new DC-to-DC regulator is designed for multi-rail, point-of-load applications ranging from communication infrastructure to industrial devices that demand small size, fast transient performance and highly accurate voltage regulation. Unlike other 5-V regulators, the maximum input range of the ADP2164 is 6.5 V, which provides additional safety headroom.
The ADP2164’s switching frequency can be programmed from 500 kHz to 1.4 MHz or synchronised to an external clock to eliminate beat frequencies between regulators. Two ADP2164 regulators can also be synchroni s ed 180 degrees out of phase to reduce input current ripple and the size of the input capacitance. The regulator is based on a current-mode, fixed-frequency PWM (pulse-width modulation) architecture that provides excellent stability and transient response, and is pin-compatible with the ADP2118 5-V 3-A synchronous regulator. Designed for high efficiency multi-rail applications, the ADP2164 operates over the −40 °C to +125 °C junction temperature range.
Availability and Pricing
The ADP2164 DC-to-DC regulator packaged in a 4 mm x 4 mm 16-lead QFN is in full production and price at $1.66 per 1k units.
More information about the ADP2164 DC-to-DC regulator at
www.analog.com/ADP2164
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