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MP28300GG Datasheet(PDF) 13 Page - Monolithic Power Systems

Part # MP28300GG
Description  Ultra-Low 500nA Iq, Wide Input 2V-5.5V, 300mA Step-Down Regulator Plus300nA Iq, 2V-5.5V Input, 100mA LDO in 2x2 QFN
PDF  19 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP28300GG Datasheet(HTML) 13 Page - Monolithic Power Systems

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MP28300
– ULTRA-LOW I
Q STEP-DOWN CONVERTER
MP28300 Rev.1.01
www.MonolithicPower.com
13
6/6/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
BLOCK DIAGRAM
Main
Switch
(PCH)
Synchronous
Rectifier
(NCH)
Constant
On -Time
PWM
Buck
CTRL
CTRL1
OUT1
SW
COMP
+
-
VIN1
+
-
PWM
COMP
Driver
PDRV
NDRV
GND
PWM
PG1
Hi-Z
E.A.
+
-
COMP
+
-
Buck Control
RST
VTH
Ref
&
Soft Start
+
-
Low IQ
COMP
Summer
Ramp
&
Sleep Mode
Sleep
CTRL2
CTRL3
Sleep
PG Control
Main
Switch
OUT2
COMP
+
-
VIN2
E.A.
+
-
CTRL4
CTRL5
LDO
CTRL
OUT2
LDO Control
Sleep Mode
OCP
Sleep
Figure 1: Functional Block Diagram



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