Part Number
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MAX8805Z |
Manufacturer
|
Maxim Integrated Products |
Description
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PWM Step-Down Converters |
Published
|
May 15, 2007 |
Detailed Description
|
19-0777; Rev 0; 4/07
600mA PWM Step-Down Converters in 2mm x 2mm WLP for WCDMA PA Power
General Description
The MAX8805...
|
Datasheet
|
MAX8805Z
|
Overview
19-0777; Rev 0; 4/07
600mA PWM Step-Down Converters in 2mm x 2mm WLP for WCDMA PA Power
General Description
The MAX8805Y/MAX8805Z high-frequency step-down converters are optimized for dynamically powering the power amplifier (PA) in WCDMA or NCDMA handsets.
The devices integrate a high-efficiency PWM step-down converter for medium- and low-power transmission, and a 60mΩ typical bypass FET to power the PA directly from the battery during high-power transmission.
Dual 200mA low-noise, high-PSRR low-dropout regulators (LDOs) for PA biasing are also integrated.
Two switching frequency options are available—2MHz (MAX8805Y) and 4MHz (MAX8805Z)—allowing optimization for smallest solution size or h...
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