Print  |  Send  |   

Dual output 20-V, 3-A switching regulator features high and flat conversion efficiency

July 18, 2011 // Paul Buckley

Dual output 20-V, 3-A switching regulator features high and flat conversion efficiency

Analog Devices, Inc., has introduced a 20 V, 3 A dual output DC-to-DC regulator featuring a high conversion efficiency of greater than 93 percent. The full featured ADP2323 regulator offers an input voltage supply range of 4.5 V to 20 V and an output range as low as 0.6 V up to 18 V at 1.5 percent voltage accuracy.

With more design flexibility and configurability than other DC-to-DC regulators available today, the ADP2323 regulator can be easily configured to synchronize in an evenly phase-shifted topology or for dual-output (2 x 3 A) or single interleaved output (up to 6 A). The ADP2323 provides accurate tracking capability between supplies and includes precision-enable input, voltage tracking input and POWER-GOOD features that allow a simple and reliable start-up sequence.

Key features

  • Dual output (2 x 3 A) and single interleaved output (6 A)
  • Optional power saving mode improves efficiency at light loads
  • Synchronization input and programmable phase shift feature allow up to six output rails configuration in evenly phase-shifted topology minimizing input ripple current
  • Precision-enable input, voltage tracking input and POWER-GOOD feature enables a simple and reliable start-up sequence and short circuit protection
  • Programmable current limit protects system load closer to its actual power requirement and allows the use of a smaller inductor
The ADP2323’s switching frequency can be programmed between 250 kHz to 1.2 MHz or synchronized to an external clock to minimize interference in multi-rail applications.

Both output channels run 180 degrees out of phase and can be synchronized to eliminate beat frequencies between regulators to minimize system noise. The regulator operates from input voltages of 4.5 V to 20 V and the output voltage can be as low as 0.6 V. 

The two PWM channels can be configured to deliver dual 3 A outputs or a parallel-to-single 6 A output. Designed for high efficiency for multi-rail applications, the ADP2323 operates over the −40 to +125 °C junction temperature range and is available in a compact 5 mm x 5 mm QFN-32 lead package.

The ADP2323 dual synchronous regulator packaged in a 5 mm x 5 mm 32 lead  LFCSP is available now priced at $2.40 per 1k units.

More information about the ADP2323 dual synchronous regulator at

All news

Analog & Mixed Signal ICs,Power components

Follow us

Fast, Accurate & Relevant for Design Engineers only!

Technical papers     

Linear video channel


Read more

This month Ambiq Micro is giving away five of its 'Apollo EVB' evaluation boards, worth 9 each for EETimes Europe’s readers to assess the capabilities of their cutting-edge Apollo sub-threshold microcontroller.

The new suite of Apollo MCUs is based on the 32-bit ARM Cortex-M4 floating point microcontroller and redefines 'low power' with energy consumption that is typically five to...


Design centers     

Infotainment Making HDTV in the car reliable and secure

December 15, 2011 | Texas instruments | 222901974

Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.


You must be logged in to view this page

Login here :