User Guide

Power distribution

Figure 88 Power distribution diagram

Power supply components on the bottom block module:

• EM ASIC N2200

• EM ASIC N2300

• Application processor VCORE SMPS, N4200

• WLAN module supplies: N6300, N6301, N6303

• Camera and HWA supplies: N4441, N4442

• EL sheet power supply, N4430

• Flash LED driver, N4420

Power supply components on the top block module:

• Mini SD card regulator, N9350

• Display graphics accelerator power supply, N9110

• Sub display lights power supply, D9150

All the above are powered by the main battery voltage. Battery voltage is also used on the RF side for power

amplifiers (GSM PA & WCDMA PA) and for RF ASICs.

Discrete power supplies are used to generate 1.5 V and 2.8 V for the cameras, 1.04 V/1.4 V for the application

processor, 1.5 V for the display graphics accelerator, 3.0 V for SD card and D9150 generates 1.5*VBAT voltage

for the sub display backlight LED. 1.5 V, 2.8 V and 3.0 V regulators are used to generate power supplu for

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