IC
Low Dropout Linear Regulator
uP8807
600mA Low Dropout Linear Regulator
Datasheets PDF
General Description
The uP8807 is a compact fast response low dropout regulator specifically designed to continuously deliver up to 600mA output current. Designed with a P-channel MOSFET series pass transistor, the uP8807 yields extremely low dropout voltage (e.g. 300mV at 600mA) and maintains very low quiescent current (70uA).
The uP8807 does not require a bypass capacitor, hence achieving the smallest PCB area. The uP8807 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 over temperature protection. The uP8807 is available in fixed output voltage from 0.8V to 3.3V with 0.1V per step or as an adjustable device with a 0.8V reference voltage. The device comes in various packages.
Pin Configuration & Typical Application Circuit
Feature
- Wide Input Voltage Range from 2.5V to 5.5V.
- Ultra Low Dropout Voltage: 300mV @ 600mA.
- Ultra Fast Response in Line/Load Transient.
- Stable with 1uF Ceramic Output Capacitor.
- Low Quiescent Current: 70uA Typical.
- Low Shutdown Current: < 1uA.
- Foldback Output Current Limit.
- High Output Accuracy
- 1.5% Initial Accuracy.
- Fixed Output Voltages: 0.8V to 3.3V.
- Adjustable Output Voltage from 0.8V to 5V.
- 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.