New Industry Products

Analog Devices Intros ADP3502 Power System

August 19, 2002 by Jeff Shepard

Analog Devices Inc. (Wilmington, MA) introduced its new ADP3502 CDMA power management system that includes 11 low dropout regulators (LDOs), each optimized for one CDMA subsystem, and four backup LDOs for standby-mode operation. The multi-function chip is suitable for CDMA-1x cellular phone power management in the handset baseband and RF sections.

The ADP3502 features a real-time clock, a serial bus interface, charging controls for lithium-ion and lithium-polymer batteries, controls for power-up during battery charging, a keypad interface, and a general-purpose input/output function. The ADP3502 has a high level of integration, which significantly reduces the design effort, number of discrete components and solution size/cost. The main-sub LDO structure reduces the standby current consumption and as a result, greatly extends the standby time of the phone. System operation is fully compatible with MSM51xx-based designs.

The ADP3502 is priced at $5.37 per unit in 1,000-piece quantities. The device is specified over a wide temperature range of -30 to +85 degrees C, and is available now in a 64-lead TQFP package.