LG KU580 Service Manual - Page 65
Voltage Regulation
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3. Technical Brief 3.6 Voltage Regulation The LDO regulators and the BUCK converter generate a range of programmable voltages, each optimized for its load. When the analog baseband controller boots up or down, internal signals activate or deactivate the LDO regulators and the BUCK converter. In active mode, the LDO regulators and the BUCK converter are activated and deactivated through I2C. The low power regulator is on all the time and has extremely low power consumption with limited output current. It provides power for the 32 kHz oscillator and the real-time clock (RTC). Table. 3-6-1. LDO and Buck LGE Internal Use Only - 66 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
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3.6 Voltage Regulation
The LDO regulators and the BUCK converter generate a range of programmable voltages, each
optimized for its load. When the analog baseband controller boots up or down, internal signals activate
or deactivate the LDO regulators and the BUCK converter. In active mode, the LDO regulators and the
BUCK converter are activated and deactivated through I2C. The low power regulator is on all the time
and has extremely low power consumption with limited output current. It provides power for the 32 kHz
oscillator and the real-time clock (RTC).
- 66 -
3. Technical Brief
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
Table. 3-6-1. LDO and Buck