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MP2000DJ View Datasheet(PDF) - Monolithic Power Systems

Part NameDescriptionManufacturer
MP2000DJ Low Input Voltage 150mA Linear Regulator MPS
Monolithic Power Systems MPS
MP2000DJ Datasheet PDF : 7 Pages
1 2 3 4 5 6 7
TM
MP2000 – LOW INPUT VOLTAGE, 150mA LINEAR REGULATOR
INITIAL RELEASE SPECIFICATIONS SUBJECT TO CHANGE
OPERATION
The MP2000 is a low-current, low-voltage,
low-dropout linear regulator. It is intended for
use in devices that require very low voltage and
low quiescent current power such as wireless
modems, pagers and cellular phones.
The MP2000 uses a PNP pass element and
features internal thermal shutdown and an
internal current limit circuit.
VIN
1
VEN
3
OCP
EA +
--
BANDGAP
REFERENCE
& CONTROL
EXTERNAL
RESISTOR
DIVIDER
5
R1
4
VFB
R2
CBYP
VOUT
COUT
2
Figure 1—Adjustable Regulator
MP2000_F01_BD01
APPLICATION INFORMATION
Setting the Output Voltage
The output voltage can be adjusted by
changing the values of the external resistor
divider.
Use the following equation to determine these
values:
VOUT
= 0.5V × ⎜⎛1 + R1 ⎟⎞
R2
Typically R1 + R2 are recommended to be less
than 100k.
In Figure 2, C2 is added for improved transient
response.
TYPICAL APPLICATION CIRCUIT - ADJUSTABLE
VIN
1.35V to 6.0V
1
IN
5
OUT
MP2000-ADJ
C2
100nF
VIN
3
4
EN GND FB
2
OUTPUT
1.2V
MP2000_F02_TAC01
Figure 2—Typical Application Circuit with VOUT = 1.2V
MP2000 Rev. 0.93
www.MonolithicPower.com
6
4/3/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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