Date: 28/07/2010

20V DC/DC non-synchronous switching regulators from ADI

Analog Devices has released the ADP2302 and ADP2303 dc-to-dc non-synchronous switching regulators. The new 20-V 2 A (ADP2302) and 3 A (ADP2303) step-down, dc-to-dc switching regulators integrate a high-side MOSFET that according to ADI delivers power conversion efficiencies of over 90 percent. These regulators also feature internal loop compensation, integrated soft-start circuitry and bootstrap diodes to enable high-density solutions for intermediate bus generation and point-of-load regulation. These regulators come in SOIC packages.

ADI says ADP2302 and ADP2303 support an input voltage range from 3 V to 20 V to accommodate point-of-load applications, including consumer electronics and industrial and communications infrastructure equipment. The output voltage is adjustable from 0.8 V to 80 percent of input voltage (VIN). The regulators' current-mode, fixed-frequency PWM (pulse-width modulation) architecture provides excellent stability and transient response. Under light loads, the regulators automatically operate in PFM (pulse frequency modulation) to reduce light load losses. A precision-enable pin allows the regulator to be turned on at a precise input voltage for sequencing of multiple devices. These regulators also provide OCP (over-current protection), UVLO (under-voltage lockout) and TSD (thermal shutdown). The ADP2302 and ADP2303 can replace less efficient linear regulators.

The ADP2302 and ADP2303 supports ADCs (analog to digital converters), DACs (digital-to-analog converters), precision amplifiers and other submicron ICs such as DSPs (digital signal processors) and FPGAs (field programmable gate arrays). These switching regulators are suggested by ADI for powering FPGAs and Analog Devices' Blackfin and SHARC processors. These switching regulators are also supported by the ADIsimPower design tool.


Availability and Pricing

Product Samples Availability Output
Current Junction
Temperature
Range Price
Each
Per
1,000 Packaging
ADP2302 Now Now 2 A -40°C to
+125°C $1.12 5mm × 6mm
8-lead SOIC
ADP2303 Now Now 3 A -40°C to
+125°C $1.50 5mm x 6mm
8-lead SOIC




For more information visit: www.analog.com