1
FN9141.7
ISL6506, ISL6506A, ISL6506B
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 Ld 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’s 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
• Provides 2 ACPI-Controlled Voltages
-5V
DUAL
USB/Keyboard/Mouse
-3.3V
DUAL
/3.3V
SB
PCI/Auxiliary/LAN
• Excellent 3.3V
DUAL
Regulation in S3/S4/S5
- ±2.0% Over-Temperature
- 1A Capability on ISL6506 and ISL6506A
- 2A Capability on ISL6506B
• Small Size; Very Low External Component Count
• Over-Temperature Shutdown
• Pb-Free Available (RoHS Compliant)
Applications
•
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 (8 LD EPSOIC)
TOP VIEW
VCC
3V3AUX
S3
S5
1
2
3
4
8
7
6
5
N/C
5VDLSB
DLA
GND
GND
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP. RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL6506CBZ (No longer available
or supported)
6506 CBZ 0 to +70 8 Ld EPSOIC M8.15C
ISL6506ACBZ 6506 ACBZ 0 to +70 8 Ld EPSOIC M8.15C
ISL6506BCBZ 6506 BCBZ 0 to +70 8 Ld EPSOIC M8.15C
ISL6506BCBZA 6506 BCBZ 0 to +70 8 Ld EPSOIC M8.15C
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is 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.
3. For Moisture Sensitivity Level (MSL), please see device information page for ISL6506
, ISL6506A, ISL6506B. For more information on MSL please see
techbrief TB363
.
Data Sheet November 10, 2015
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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