Product category:
Power Supply ICs and Controllers
News Release from: Analog Devices | Subject: ADP3408
Edited by the Electronicstalk Editorial
Team on 16 November 2001
Single chip powers the whole handset
chipset
The ADP3408 from Analog Devices is a multifunction power system chip optimised for GSM/DCS/PCS handsets, especially those based on the company's AD20msp430 system solution.
The ADP3408 from Analog Devices is a multifunction power system chip optimised for GSM/DCS/PCS handsets, especially those based on the company's AD20msp430 system solution This single chip contains six LDOs, one to power each of the critical GSM sub-blocks
This article was originally published on Electronicstalk on 2 Jul 2008 at 8.00am (UK)
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Two options of the ADP3408 allow for core LDO output voltages of either 2.5 or 1.8V.
The LDOs are designed with anyCAP technology that allows smaller and any type of capacitors to be used at the output end of the circuit.
The ADP3408 is designed to operate with the AD20msp430 SoftFone, which comprises two chips: the AD6521 GSM voiceband/baseband mixed-signal codec, and the AD6522 GSM/GPRS controller.
In addition to its low quiescent current operation, the ADP3408 can be controlled by the baseband chipset to enable/disable selected handset functions for optimised power management during different modes of operation.
The ADP3408 is fully specified for operation from -20 to +85C and is housed in either a narrow-body TSSOP 28-pin surface mount package, or in a 5 x 5mm 32-pin CSP (chip-scale package).
The CSP offers enhanced thermal conductivity with a smaller footprint and handles increased power dissipation without overheating the IC.
It is priced at $3.84 in 1000-piece quantities.
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