深圳市中立信电子科技有限公司

MIC5319YML-TR

低压差稳压器 500mA uCap Ultra-Low Dropout, High PSRR LDO Regulator

500 mA, μCap Ultra-Low Dropout Regulator with High PSRR

General Description MIC5319YML-TR

The MIC5319 is a high performance, 500 mA LDO regulator, with high PSRR and very low noise, with low ground current.

Ideal for battery-operated applications, the MIC5319 features 1% accuracy, very low dropout voltage (typically 200 mV @ 500 mA), and low ground current at light load (typically 90 μA). Equipped with a logic-compatible enable pin, the MIC5319 can be set into a zero-off-mode current state, typically drawing only 0.5 μA current when disabled.

The MIC5319 is a μCap design operating with very  small ceramic output capacitors for stability, thereby  reducing required board space and component cost.

Applications MIC5319YML-TR

• Cellular Phones

• PDAs

• Fiber Optic Modules

• Portable Electronics

• Notebook PCs

• Audio Codec Power Supplies

Features MIC5319YML-TR

• Ultra-Low Dropout Voltage: 200 mV @ 500 mA

• Input Voltage Range: 2.5V to 5.5V

• Output Voltage:

- Adjustable: VREF = 1.25V

- Fixed: 1.3V, 1.8V, 1.85V, 2.5V, 2.6V, 2.7V,

2.8V, 2.85V, 2.9V, 3.0V, 3.3V

• Stable with Low ESR Ceramic Output Capacitor

• Low Output Noise: 40 μVRMS (10 Hz to 100 kHz Bandwidth)

• Low Ground Current: 90 μA Typical

• High PSRR, up to 70 dB @ 1 kHz

• Fast Turn-On Time: 40 μs Typical