廬
ISL6506, ISL6506A, ISL6506B
Data Sheet
May 2, 2005
FN9141.2
Multiple Linear Power Controller with
ACPI Control Interface
The ISL6506 complements other power building blocks
(voltage regulators) in ACPI-compliant designs for
microprocessor and computer applications. The IC
integrates the control of the 5V
DUAL
and 3.3V
DUAL
rails into
an 8 pin EPAD SOIC package. The ISL6506 operating mode
(active outputs or sleep outputs) is selectable through two
digital control pins, S3# and S5#.
A completely integrated linear regulator generates the
3.3V
DUAL
voltage plane from the ATX supply鈥檚 5V
SB
output
during sleep states (S3, S4/S5). In active states (during S0
and S1/S2), the ISL6506 uses an external N-channel pass
MOSFET to connect the outputs directly to the 3.3V input
supplied by an ATX power supply, for minimal losses.
The ISL6506 powers up the 5V
DUAL
plane by switching in
the ATX 5V output through an NMOS transistor in active
states, or by switching in the ATX 5V
SB
through a PMOS (or
PNP) transistor in S3 sleep state. In S4/S5 sleep states, the
ISL6506 and ISL6506B 5V
DUAL
output is shut down. In the
ISL6506A, the 5V
DUAL
output stays on during S4/S5 sleep
states.
Functionally, the ISL6506 and ISL6506B are identical. The
ISL6506B, however, features a 2A current limit on the
internal 3.3V LDO while the ISL6506 has a 1A current limit.
The ISL6506A has a 1A current limit on the internal 3.3V
LDO.
Features
鈥?Provides 2 ACPI-Controlled Voltages
- 5V
DUAL
USB/Keyboard/Mouse
- 3.3V
DUAL
/3.3V
SB
PCI/Auxiliary/LAN
鈥?Excellent 3.3V
DUAL
Regulation in S3/S4/S5
-
鹵2.0%
over temperature
- 1A Capability on ISL6506 and ISL6506A
- 2A Capability on ISL6506B
鈥?Small Size; Very Low External Component Count
鈥?Over-Temperature Shutdown
鈥?Pb-Free Available (RoHS Compliant)
Applications
鈥?ACPI-Compliant Power Regulation for Motherboards
- ISL6506, ISL6506B: 5V
DUAL
is shut down in S4/S5
sleep states
- ISL6506A: 5V
DUAL
stays on in S4/S5 sleep states
Pinout
ISL6506 (SOIC)
TOP VIEW
VCC
3V3AUX
S3#
S5#
1
2
3
4
GND
8
7
6
5
N/C
5VDLSB
DLA
GND
Ordering Information
PART NUMBER
ISL6506CB
ISL6506CBZ (Note)
ISL6506ACB
ISL6506ACBZ (Note)
ISL6506BCB
ISL6506BCBZ (Note)
ISL6506BCBZA
(Note)
TEMP.
RANGE (擄C)
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
PACKAGE
8 Ld EPSOIC
PKG.
DWG. #
M8.15C
8 Ld EPSOIC (Pb-free) M8.15C
8 Ld EPSOIC
M8.15C
8 Ld EPSOIC (Pb-free) M8.15C
8 Ld EPSOIC
M8.15C
8 Ld EPSOIC (Pb-free) M8.15C
8 Ld EPSOIC (Pb-free) M8.15C
*Add 鈥?T鈥?suffix to part number for tape and reel packaging.
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which are RoHS compliant and compatible
with both SnPb and Pb-free soldering operations. Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that
meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2004-2005. All Rights Reserved.
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