General Description

The MIC2590B is a power controller supporting power distribution requirements for Peripheral Component Interconnect (PCI) hot plug compliant systems incorporating the Intelligent Platform Management Interface (IPMI). The MIC2590B provides complete power control support for two PCI slots including the 3.3VAUX defined by the PCI 2.2 specification.

Features

• Supports two independent PCI 2.2 slots

• SMBus interface for slot power control and status

• +5V, +3.3V, +12V, –12V, +3.3VAUX supplies supported per PCI specification 2.2

• Programmable inrush current-limiting

• Active current regulation controls inrush current

• Electronic circuit breaker

• Dual level fault detection for quick fault response without nuisance tripping

• Thermal isolation between circuitry for slot A and slot B

Applications

• PCI hot-plug power distribution