XTLV74318-XC

XTLV74318 is an ultra-low noise, ultra-low quiescent current LDO regulator powered by a 2.2V to 5.5V supply, capable of delivering up to 300mA output current with a stable 1.8V output voltage. Its innovative design achieves a quiescent current of only 15μA at no load, making it ideal for battery-powered portable devices. The device delivers excellent noise immunity without an external noise bypass capacitor, while maintaining outstanding PSRR and line/load transient response performance. By combining ultra-low noise with extremely low quiescent current, the XTLV74318 maximizes battery life in portable devices. In space-constrained, high-performance applications, the XTLV74318 can be used with 1μF input and output ceramic capacitors to meet requirements. The device is available in a 5-pin SOT-23 package with an operating temperature range of -40℃ to 125℃.

Applications

• Smartphones
• Tablets
• Camera modules and digital cameras
• Laptops and desktop computers
• WLAN and other communication modules

Key features

• Ultra-low noise: 9 μV RMS, independent of VOUT
• Ultra-low quiescent current (no load): 15 μA
• Maximum output current: 300 mA
• Input voltage: 2.2V to 5.5V
• Fixed output voltage: 1.8V
• Output voltage accuracy: ±1%
• Low shutdown current: <1 μA
• Low dropout: 280 mV (typical)
• PSRR: 62 dB at 1 kHz
• No additional noise bypass capacitor required
• Stable performance with 1 μF ceramic input and output capacitors
• Current limiting and thermal overload protection
• Logic-controlled enable
• 5-pin SOT-23 package