IC
Low Dropout Linear Regulator
uP8806P/Q
Ultra Low Noise, Fast Response, High PSRR 300/500mA Low Dropout Linear Regulator
Datasheets PDF
General Description
The uP8806P/Q is an ultra low noise, fast response, high power supply rejection ratio (PSRR) low dropout regulator specifically designed to continuously deliver up to 300mA output current. Designed with a P-channel MOSFET series pass transistor, the uP8806P/Q yields extremely low dropout voltage (e.g. 300mV at 300mA).The uP8806P/Q does not require a bypass capacitor, hence achieving the smallest PCB area. This device reduces output voltage noise under 70uV(RMS) and improves PSRR to 40dB at 100kHz.The uP8806P/Q is designed and optimized to work with low-value, low-cost ceramic capacitors. Only a 1uF ceramic output capacitor is required for stable operation for any load conditions.
Other features include foldback overcurrent protection, quick soft start, and overtemperature protection. The uP8806P/Q is available in fixed output voltage from 0.8V to 4.75V with 0.1V per step. The device comes in (T)SOT23-3L/5L, SOT223-3L, SOT89-3L and TO252-3L packages.
Pin Configuration & Typical Application Circuit
(T)SOT23-5L
SOT89-3L (PKA3)
SOT89-3L (QKA3)
TO-252-3L
SOT223-3L
SOT23-3L
Feature
- Wide Input Voltage Range from 2.4 to 6V
- Ultra Low Dropout Voltage: 300mV @ 300mA
- High Power Supply Rejection Ratio Up to 74dB @1kHz
- Ultra Fast Response in Line/Load Transient
- Stable with 1uF Ceramic Output Capacitor
- Low Shutdown Current: < 1uA
- Foldback Output Current Limit
- High Output Accuracy
- 1.5% Initial Accuracy
- Fixed Output Voltages: 0.8V to 4.75V with 0.1V Per Step
- Over-Temperature Protection
- RoHS Compliant and Halogen Free
Application
- Cellular and Cordless Phones
- Bluetooth Portable Radios and Accessaries
- Battery-Powered Equipment
- Laptop, Palmtops, Notebook Computers
- Hand-Held Instruments
- PCMCIA Cards
- Portable Information Appliances