Datasheet

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LPC3152_3154 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
Preliminary data sheet Rev. 0.12 — 27 May 2010 46 of 88
NXP Semiconductors
LPC3152/3154
This module has the following features:
• Takes power from the Li-Ion battery or the USB power supply.
• Outputs in Li-Ion battery mode:
– PSU_VOUT1, 2.4 V to 3.2 V (software programmable in 8 levels), 100 mA
(analog power supply and I/O).
– PSU_VOUT2, 0.9 V to 1.4 V (software programmable in 8 levels), 100 mA
(digital power supply).
– PSU_VOUT3, 1.4 V or 1.8 V (software selectable), 50 mA (digital power supply).
– PSU_VOUT1 and PSU_VOUT2 are generated by two inductive DC-to-DC buck
converters with internal power switches.
– PSU_VOUT3 is generated by an LDO from PSU_VOUT1.
• Outputs in USB power supply mode:
– PSU_VOUT1, 3.3 V, 80 mA.
– PSU_VOUT2, 1.2 V, 80 mA.
– PSU_VOUT3, 1.4 V or 1.8 V (software selectable), 50 mA.
– PSU_VOUT1 is generated by an LDO from the 5 V USB power supply.
– PSU_VOUT2 and PSU_VOUT3 are generated by an LDO from PSU_VOUT1.
Fig 13. LPC3152/3154 supply voltages of the analog and digital die
PSU_VOUT2
PSU_VOUT1
PSU_VOUT3
USB_VBUS
PSU
PSU_VBUS
PSU_VBAT
PSU_VBAT1
RTC_BACKUP
RTC_VDD36
PSU_VBAT2
UOS_VBAT
UOS_VBUS
CHARGE_VBUS
Li-ION
CHARGER
USB CHARGE
PUMP
LPC3152/3154
LPC3152/3154
002aae465
SUP3
SUP5
SUP4/8
3.3 V MODE
SUP4/8
1.8 V MODE
SUP1
SUP3
SUP2
to USB
device
CHARGE_VBAT
CHARGE_CC_REF
CHARGE_VSS
Li-ion
battery
RTC
ANALOG DIE
DIGITAL DIE