Pcba Components And Bom Information - Huawei P20 Maintenance Manual

Subsystem Module
power
management
function

2.3 PCBA Components and BOM Information

The following is the PCBA component document.
PC B A
C o m p o nents i n EM L-L29V 100R 001 A d vanced M ai ntenance M anual _V 2. 0-20180227. xl sx
2019-6-25
EML-L29V100R001 Advanced Maintenance Manual V2.1
Unit
management
Power management
of board circuits
(power-on and
power-off analysis)
Charging IC
RF PMIC
Huawei Confidential
Function
RTC current.
Mainly refers to the LDO, which manages the
power supply flexibly. The board software
manages power supplies to circuits on the
board based on service status, protocols, or
power-saving analysis to reduce power
consumption. Three channels of 32 kHz clocks
are provided.
Supports dynamic path management, charges
the battery while providing power, and
prioritizes power supply.
Provides the RF core voltage.
INTERNAL
Page 11 of 67