MIC5205

MIC5205 — Ultra Low-Noise LDO Voltage Regulator

Features:

• Ultra-low output noise

• High output voltage accuracy

• Guaranteed 150 mA output current

• Low quiescent current

• Low dropout voltage

• Excellent line and load regulation

• Very low temperature coefficient

• Current limiting and thermal protection

• Reverse-battery protection

• Zero current in shutdown mode

• Logic-level enable input (CMOS/TTL compatible)

Applications:

• Cellular phones

• Laptops, notebooks, and handheld devices

• Battery-powered electronics

• PCMCIA VCC and VPP switching/regulation

• Consumer electronics

• SMPS post-regulation and DC/DC modules

• High-efficiency linear power supplies

General Description:

The MIC5205 is a high-efficiency linear voltage regulator with ultra-low output noise, low dropout voltage (typically 17 mV at light load and 165 mV at 150 mA), and low ground current (600 µA at 100 mA load). It delivers better than ±1% output voltage accuracy at initial setup.

Optimized for battery-powered portable systems, the MIC5205 includes a logic-compatible enable/shutdown input. When disabled, power consumption drops nearly to zero. Even in dropout conditions, ground current rises only slightly, helping extend battery life.

Additional features include a noise-reduction bypass pin, reverse battery protection, current limit, and thermal shutdown.

Available in fixed and adjustable versions in a tiny SOT-23-5 package.

For ceramic-capacitor-stable alternatives, see the μCap MIC5245/6/7 family.

Tags: MIC5205, LDO, linear regulator, 150mA, 3.3V, 5V, SOT-23-5, low power, shutdown