SK6011S5-33

The SK6011 family of low-dropout (LDO), low-power linear regulators offers very high power supply rejection ratio (PSRR) while maintaining very low quiescent current, suitable for RF applications. The family uses an advanced CMOS process and a PMOSFET pass device to achieve fast start-up, very low noise, excellent transient response, and excellent PSRR performance. The SK6011 is stable with a 1.0 μF ceramic output capacitor, and uses a precision voltage reference and feedback loop to achieve a worst-case accuracy of 2% over all load, line, process, and temperature variations. It is fully specified from TJ = -40°C to +125°C and is offered in a small UTDFN 1×1 - 4, DFN1×1 - 4 and SOT23-5 package, which is ideal for small form factor portable equipment such as wireless handsets and PDAs.

Applications

• Smart Phones and Cellular Phones
• PDAs
• MP3/MP4 Player
• Digital Still Cameras
• Portable Instrument

Key features

• Wide Input Voltage Range: 1.9 V to 5.5 V
• Output Voltage: 1.2 V to 4.5 V
• Up to 300 mA Load Current
• Other Output Voltage Options Available on Request
• Very Low IQ: 14 μA
• Low Dropout: 180 mV @ 3.3 V typical
• Very High PSRR: 90 dB at 1 kHz
• Ultra Low Noise: 10 μV RMS at 3.3 V output (Iload = 1 mA)
• Excellent Load/Line Transient Response
• Line Regulation: 0.02%/V typical
• Short-Circuit Current Limit: 80 mA (Current at short mode) typical With Auto Discharge