XCM519
DESCRIPTION
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ETR2421-003
600m A Synchronous Step-Down DC/DC Converter + Low Voltage Input LDO
The XCM519 series is a multi bination module IC which prises of a 600m A driver transistor built-in synchronous step- down DC/DC converter and a low voltage input LDO regulator. The device is housed in small USP-12B01 package which is ideally suited for space conscious applications. Battery operated portable products require high efficiency so that a dual DC/DC converter is often used. The XCM519 can replace this dual DC/DC to eliminate one inductor and reduce output noise. The DC/DC converter and the LDO regulator blocks are isolated in the package so that noise interference from the DC/DC to the LDO regulator is minimal. A low output voltage and low On-resistance LDO regulator is added in series to the DC/DC output so that one another low output voltage is created with a high efficiency and low noise. With parison to the dual DC/DC solution, one inductor can be eliminated which results...
