uP8805P
Ultra Low Noise, Fast Response, High PSRR
700mΩ Low Dropout Linear Regulator
Features
General Description
The uP8805P is an ultra low noise, fast response, high Wide Input Voltage Range from 2.4 to 5.5V
power supply rejection ratio (PSRR) low dropout regulator
specifically designed to continuously deliver up to 500mA
output current.Designed with a P-channel MOSFET series
pass transistor, the uP8805P yields extremely low dropout
voltage (e.g. 180mV at 300mA, 300mV at 500mA) and
maintains very low ground current.
Ultra Low Dropout Voltage: 180mV @ 300mA
High Power Supply Rejection Ratio
70dB at 1kHz
40dB at 100kHz
Ultra Low Output Noise Voltage 100uV(RMS)
Ultra Fast Response in Line/Load Transient
Stable with 1uF Ceramic Output Capacitor
Low Ground Current: 70uA
The uP8805P does not require a bypass capacitor, hence
achieving the smallest PCB area. This device reduces
output voltage noise to 100uV(RMS) and improves PSRR to
40dB at 100kHz.
Low Shutdown Current: < 1uA
The uP8805P 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.
Foldback Output Current Limit
High Output Accuracy
1.5% Initial Accuracy
Other features include foldback overcurrent protection, quick
soft start, and overtemperature protection. The uP8805P
is available in adjustable voltage from 0.8V to 3.3V with
0.1V per step. The device comes in SOT23 - 5L and
TSOT23-5L packages.
Adjustable Output Voltage from 0.8V to (VIN -
Dropout Voltage)
Over-Temperature Protection
RoHS Compliant and Halogen Free
Applications
Cellular and Cordless Phones
Bluetooth Portable Radios and Accessaries
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards
Portable Information Appliances
Ordering Information
Order Number
uP8805PMA5-00
uP8805QMA5-00
uP8805RMA5-00
uP8805QMT5-00
Package
SOT23-5L
TSOT23-5L
Top Marking
SB1P00
SB1Q00
SB1R00
N68Q00
Remark
OCP/ Soft Start Time: 330mA/40us
OCP/ Soft Start Time: 330mA/750us
OCP/ Soft Start Time: 330mA/3ms
OCP/ Soft Start Time: 330mA/750us
Note:
(1) Please check the sample/production availability with uPI representatives.
(2) uPI products are compatible with the current IPC/JEDEC J-STD-020 requirement. They are halogen-free, RoHS
compliant and 100% matte tin (Sn) plating that are suitable for use in SnPb or Pb-free soldering processes.
uP08805P-DS-F0000, Jan, 2015
www.upi-semi.com
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