MP2005 – 800mA, HIGH PSRR,ULDO LINEAR REGULATOR
MP2005 Rev. 1.0 www.MonolithicPower.com 4
3/17/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
V
IN
= 1.5V, V
BIAS
= 3.6V, V
OUT
= 1.2V, C2 =4.7µF, C3 = 1µF, T
A
= +25C, unless otherwise noted.
Parameter Symbol Condition Min Typ Max Units
V
IN
Operating Voltage 1.0 5.5 V
V
BIAS
Operating Voltage 2.7 5.5 V
V
IN
Operating Current V
OUT
= 1.2V 4 10 μA
V
BIAS
Operating Current I
OUT
= 10µA, V
OUT
= 1.2V 100 150 μA
FB Regulation Voltage
I
OUT
= 1mA to 800mA 0.490 0.500 0.510
V
–40C
T
A
+85C, V
OUT
= 0.5 V
0.487 0.500 0.512
Dropout Voltage I
OUT
= 800mA, V
BIAS
= 3.6V 70 90 mV
V
IN
Line Regulation
I
OUT
= 1mA,
V
IN
= 1.0V to 5.5V
V
BIAS
= 3.6V V
OUT
= 0.5V
0.002 %/V
V
BIAS
Line Regulation
I
OUT
= 100mA,
V
BIAS
= 2.7V to 5.5V V
OUT
= 0.5V
V
IN
= 1.5V
0.04 %/V
Load Regulation I
OUT
= 1mA to 800mA 0.0005 %/mA
PSRR
V
IN
> V
OUT
+ 0.5V, C2 = 10μF,
V
IN
(AC) = 100mV, f = 1MHz
48 dB
EN Input High Voltage 1.3 V
EN Input Low Voltage 0.8
V
EN Input Bias Current V
EN
= 1.2V –1 +1
μA
Thermal Protection 155
C
Thermal Protection Hysteresis 30
C
GND Current I
LOAD
= 500mA 110 150 μA
PIN FUNCTIONS
Pin # Name Description
1 IN Power Source Input. Bypass IN to GND with a 1µF or greater capacitor.
2 BIAS Bias Voltage. Bypass to GND with a 1μF capacitor (or greater)
3, 6 NC No Connect.
4 GND Ground.
5 EN
Enable Input. Drive EN high to turn on the MP2005, drive EN low to turn it off. For
automatic startup, connect EN to Bias.
7 FB
Feedback Input. Connect a resistive voltage divider from OUT to FB to set the output
voltage. OUT feedback threshold is 0.5V.
8 OUT
Regulator Output. OUT is the output of the linear regulator. Bypass OUT to GND with a
1µF or greater capacitor.
