The FAN2558/9 low voltage CMOS LDOs feature fixed or adjustable output voltage, 180mA load current, delayed power good output (open drain) and 1% output accuracy with excellent line and load regulation. An external bypass capacitor provides ultra-low noise operation.

The FAN2558/9 low voltage LDOs incorporate both thermal shutdown and short circuit protection. Output is stable with a 1µF, low ESR capacitor. The FAN2558/9 family is available in 5-Lead SOT-23, 6-Lead SOT-23 and 2X2mm MLP-6 packages.

FAN2558: Fixed Output LDO with Power Good output

FAN2558ADJ: Adjustable Output LDO with Power Good output

FAN2559: Fixed Output LDO with Power Good output, Low Noise

Available standard output voltages are 1.0, 1.2V, 1.3V, 1.5V, 1.8V, 2.5V, 3.3V, 3.5V, 3.6V and 3.8V. Custom output voltage options are also available.

• Fixed 1.0, 1.2V, 1.3V, 1.5V, 1.8V, 2.5V, 3.3V, 3.5V, 3.6V, 3.8V and Adjustable Output
• Power Good Indicator with Open Drain Output
• 180mA Output Current
• 100µA Ground Current
• C_bypass for Low Noise Operation
• Fast Enable for CDMA Applications
• High Ripple Rejection
• Current Limit
• Thermal Shutdown
• Excellent Line and Load Regulation
• Requires Only 1µF Output Capacitor
• Stable with 0 to 300mW ESR
• TTL-level Compatible Enable Input
• Active Output Discharge

• Processor Power-up sequencing
• PDAs, Cell Phones
• Portable Electronic Equipment
• PCMCIA Vcc and Vpp regulation/switching