3. TECHNICAL BRIEF
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SM-POWER is a further step on the successful E-Power product line with enhanced and optimized
functionality. SM-POWER features a baseband supply concept with a DC/DC step-down converter
(SDBB) cascaded by two linear regulators (LBB1/2)
- SM-POWER’s DC/DC converter makes up to 40 % reduction of battery current for smart phone
functions (e.g. organizer functions, games, MP3 decoding) possible.
- SDBB has high efficiency up to 95% and also a power save mode.
- Memory Interface is directly supported by the SDBB
- SDBB can also act as main supply voltage for E-GOLD+ or S-GOLDlite baseband devices.
- For S-GOLD two linear regulators for DSP and Core are cascaded after the SDBB.
Figure 4 Top level block diagram of the SM-Power(PMB6812)
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