Filter
Top Products
Chapter 1 41
SYSTEM POWER PLANES
1. VL/5VPCU/3VPCU: These power planes will always be turned on unless the AC adapter and battery pack is
removed from the system. 5VPCU is the power source of +5V and 5V_S5 and 3VPCU is the power source of
+3V, 3VSUS and 3V_S5.
2. VCCRTC: This power plane will always be turned on even when the AC adapter and battery pack is removed
form the system. This battery backed up power is used by the RTC module inside the SB460.
3. 1.8V_S5/3V_S5/5V_S5: These power plane are used by SB460 Suspend/Resume power plane.
4. 3VSUS: These power planes will be stay on even when the system in the Suspend state
5. +1.5V/+1.8V/+3V/+5V: These power plane will be switch off when the system goes into the suspend mode.
6. 3V_S5/+5V_S5: This power plane will be stay on in S0 - S4 state and is used by devices that support D3 cold
wake up.
Input Characteristics
Output characteristics
Indicator: power LED (green)
Power Plane
Active
State
Control
signal
Device
VCCRTC Always - SB460, PC97551
VL Always -
15V Always - MOS Gate
5VPCU Always - TPS51120
3VPCU Always - NS PC97551, TPS51120
1.8V_S5 S0-S5 S5_ON G913C, SB460
3V_S5 S0-S5 S5_ON AO6402, RTL8100CL, MODEM
5V_S5 S0-S5 SUSON USB
3VSUS S0-S3 SUSON SB460, MINI-PCI,AO6402
+2.5V S0-S1 MAINON G913-C, Athlon64
+1.8V S0-S1 MAINON AO6402, RS485, SB460, Athlon64
+1.5V S0-S1 MAINON G966, MINIPCI
+3V S0-S1 MAINON CLK Gen., AO6402, Athlon64, SB485, DDR2 SO-DIMM, LCD,
PCMCIA, MINI-PCI, CODEC, PC97551
+5V S0-S1 MAINON SB460, CRT, LCD, PCMCIA, MINI-PCI, AUDIO, HDD, ODD,
FAN, TP,
CPU_VCCA S0-S1 MAINON Athlon64 CPU, RS485
VCC_CORE S0-S1 VRON Athlon64 CPU
+VTT S0-S1 VRON Athlon64 CPU, TPS51116
Functions Description
Input voltage 90V AC ~ 264V AC
Input frequency range 47 ~ 63 Hz
Maximum input AC current 3.42A
Inrush current 50A@115VAC100A@230VAC
Efficiency 85% min. @110VAC / 65W load85% min. @240VAC / 65W load
Output Voltage Load range (Min) Load range (max) Regulation Ripple & Noise
+19v 0A 3.42A +-5% 400mVp-p