The ISL6412 is an ultra low noise triple output LDO regulator with microprocessor reset circuit and is optimized for powering wireless chip sets.

特性 Features

? Small DC/DC Converter Size

- Three LDOs and Reset Circuitry in a Low-Profile 4x4mm QFN Package

? High Output Current

- LDO1, 1.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330mA

- LDO2, 2.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225mA

- LDO3, 2.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125mA

? Ultra-Low Dropout Voltage

- LDO2, 2.8V. . . . . . . . . . . . . . . . 125mV (typ.) at 225mA

- LDO3, 2.8V. . . . . . . . . . . . . . . . 100mV (typ.) at 125mA

? Ultra-Low Output Voltage Noise

- <30μVRMS (typ.) for LDO3 (VCO Supply)

? Stable with Small Ceramic Output Capacitors

? Extensive Protection and Monitoring Features

- Over current protection

- Short circuit protection

- Thermal shutdown

- FAULT indicator

? Logic-Controlled Shutdown Pin

? Integrated Microprocessor Reset Circuit

- Programmable Reset Delay

? Proven Reference Design for a Total WLAN System Solution

? QFN Package

- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Product Outline

- Near Chip-Scale Package Footprint Improves PCB Efficiency and Is Thinner in Profile

? Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

? PRISM? 3 Chipsets – ISL37106P

? WLAN Cards

- PCMCIA, Cardbus32, MiniPCI Cards

- Compact Flash Cards

? Liberty Chipset

? Hand-Held Instruments