ISL6505CB

Mounting Type: Surface Mount
Series: -
Voltage - Input: -
Operating Temperature: 0°C ~ 70°C
Packaging: Tube
Applications: Power Supply Controller/Monitor
Package / Case: 20-SOIC (0.295", 7.50mm Width)
Manufacturer: Intersil
Voltage - Supply: 4.75 V ~ 5.25 V
Current - Supply: 6mA
Supplier Device Package: 20-SOIC W


Features:

• Provides four ACPI-Controlled Voltages
- 5VDUAL USB/Keyboard/Mouse
- 3.3VDUAL/3.3VSB PCI/Auxiliary/LAN
- 1.2VVID Processor VID Circuitry
- VOUT1 (1.2V - 1.5V programmable) LAN/Ethernet
• Excellent Output Voltage Regulation
- All Outputs: ±2.0% over temperature (as applicable)
• Small Size; Very Low External Component Count
• Undervoltage Monitoring of All Outputs with Centralized
  FAULT Reporting and Temperature Shutdown
• QFN Package:
- Compliant to JEDEC PUB95 MO-220
QFN - Quad Flat No Leads - Package Outline
- Near Chip Scale Package footprint, which improves
  PCB efficiency and has a thinner p


Application

ACPI-Compliant Power Regulation for Motherboards


Pinout




Specifications

Supply Voltage, V5VSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.0V
DLA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GND - 0.3V to +14.5V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+ 7.0V
ESD Classification (Human Body Model) . . . . . . . . . . . . . . . . .   .2kV
Recommended Operating Conditions
Supply Voltage, V5VSB . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±5%
Lowest 5VSB Supply Voltage Guaranteeing Parameters . . . +4.5V
Digital Inputs, VSx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +5.5V
Ambient Temperature Range. . . . . . . . . . . . . . . . . . . . 0oC to 70oC
Junction Temperature Range . . . . . . . . . . . . . . . . . . . 0oC to 125oC


Description

The ISL6505CB complements other power building blocks(voltage regulators) in ACPI-compliant designs for microprocessor and computer applications. The IC ISL6505CB integrates three linear controllers/regulators, switching, monitoring and control functions into a 20-pin wide-body SOIC or 20-pin QFN (also known as MLF) 5x5 package. The ISL6505CB's operating mode (active or sleep outputs) is selectable through two digital control pins, S3 and S5.

One linear controller ISL6505CB generates the 3.3VDUAL/3.3VSB voltage plane from the ATX supply's 5VSB output, powering the south bridge and the PCI slots through an external NPN pass transistor during sleep states (S3, S4/S5). In active state (during S0 and S1/S2), the 3.3VDUAL/3.3VSB linear regulator 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 3.3VDUAL/3.3VSB output is active for as long as the ATX 5VSB voltage is applied to the chip.

A controller powers up the 5VDUAL plane by switching in the ATX 5V output through an NMOS transistor in active states, or by switching in the ATX 5VSB through a PMOS (or PNP) transistor in S3 sleep state. In S4/S5 sleep states, the ISL6505CB 5VDUAL output is either shut down or stays on, based on the state of the EN5 pin.

An internal linear regulator supplies the 1.2V for the voltage identification circuitry (VID) only during active states (S0 and S1/S2), and uses the 3V3 pin as input source for its internal pass element.

A linear controller generates VOUT1 from the 3.3VDUAL/3.3VSB voltage plane, using an external NFET. The voltage is user-programmable to values between 1.2V and 1.5V, using an external resistor divider. The mode ISL6505CB is user-selectable with the LAN pin; a logic high (or open) selects the 10/100 LAN mode, where VOUT1 is always on (S0-S5); a logic low selects the Gigabit Ethernet mode, where VOUT1 is only on during active modes (S0-S2).

Parameters:

Technical/Catalog Information	ISL6505CB
Vendor	Intersil
Category	Integrated Circuits (ICs)
Type	-
Voltage - Supply	4.75 V ~ 5.25 V
Current - Supply	6mA
Voltage - Input	-
Package / Case	20-SOIC
Packaging	Tube
Applications	Power Supply Controller/Monitor
Operating Temperature	0°C ~ 70°C
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	ISL6505CB ISL6505CB