Features
• Small DC/DC Converter Size
- Three LDOs and RESET Circuitry in a Low-Profile
4x4mm QFN Package
• High Output Current
- LDO1, 1.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA
- LDO2, 2.84V. . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mA
- LDO3, 2.84V. . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mA
• Ultra-Low Dropout Voltage
- LDO2, 2.84V. . . . . . . . . . . . . . . 125mV (typ.) at 300mA
- LDO3, 2.84V. . . . . . . . . . . . . . . 100mV (typ.) at 200mA
• Ultra-Low Output Voltage Noise
- <30VRMS (typ.) for LDO3 (VCO Supply)
• Stable with Smaller Ceramic Output Capacitors
• Voltage Sequencing for BBP/MAC and Analog Supplies
• Extensive Protection and Monitoring Features
- Over current protection
- Short circuit protection
- Thermal shutdown
- Reverse battery protection
- FAULT indicator
• Logic-Controlled Dual Shutdown Pins
• Integrated Microprocessor Reset Circuit
- Programmable Reset Delay
- Complimentary Reset Outputs
• Proven Reference Design for Total WLAN System
Solution
• QFN Package Option
- 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, PRISM GT™, and PRISM WWR Chipsets
• WLAN Cards
- PCMCIA, Cardbus32, MiniPCI Cards
- Compact Flash Cards
• Hand-Held Instruments