MP8801
Low Dropout
150mA Linear Regulator
MP8801 Rev. 1.7 www.MonolithicPower.com 1
10/3/2006 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP8801 is a low-noise, low-dropout linear
regulator. It operates from a 2.7V to 6.5V input
voltage and regulates the output voltage with
2% accuracy at 2.5V, 2.85V or 3.3V. The
internally set output voltage may be overridden
with an external resistor divider from 1.25V to
5V.
The MP8801 can supply up to 150mA of load
current. The MP8801 features thermal overload
protection and is available in a 5-pin TSOT23-5
package.
FIXED VOLTAGE PART NUMBERS
Part Number Output Voltage
MP8801DJ–2.5 2.5V
MP8801DJ–2.85 2.85V
MP8801DJ–3.3 3.3V
EVALUATION BOARD REFERENCE
Board Number Output* Dimensions
EV8801DJ-00A 2.85V 2.0”X x 2.0”Y x 0.4”Z
*
Default output voltage adjustable from 1.25V to 5.0V using an
external resistor divider.
FEATURES
• Low 100mV Dropout at 100mA Output
• 2% Accurate Output Voltage
• Fixed Output Voltage Options of 2.5V,
2.85V or 3.3V
• Adjustable Output Voltage from 1.25V to 5V
using an External Resistor Divider
• Up to 6.5V Input Voltage
• High PSRR
o 70dB at 1KHz
o 30dB at 1MHz
• Better Than 0.001%/mA Load Regulation
• Stable With Low-ESR Output Capacitor
• Low 125µA Ground Current
• Internal Thermal Protection
APPLICATIONS
• 802.11 PC Cards
• Mobile Handset PLL Power
• Audio Codec Power
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MP8801DJ-X.X
FB
OUT
4
5
GND
2
EN
IN
3
1
OUTPUT
1.5V to 5V
V
IN
2.7V to 6.5V
V
IN
EN (Pin3)
may be connected
to IN (Pin 1) directly
The sum of
R1 and R2
should not
exceed 100k
R1
R2
160
140
120
100
80
60
40
20
0
V
DROPOUT
(mV)
0 20 40 60 80 100 120 140 160
I
LOAD
(mA)
V
DROPOUT
vs I
LOAD
