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MP2145 Datasheet(PDF) 12 Page - Monolithic Power Systems

Part # MP2145
Description  5.5V, 6A, 1.2MHz, High-Efficiency, 40uA IQ Constant On-Time Synchronous, Step-Down Switcher
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2145 Datasheet(HTML) 12 Page - Monolithic Power Systems

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MP2145
– 5.5V, 6A, 1.2MHz, COT, BUCK SWITCHER
MP2145 Rev. 1.11
www.MonolithicPower.com
12
12/20/2016
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
BLOCK DIAGRAM
Main
Switch
(PCH)
Synchronous
Rectifier
( NCH)
Constant
On - Time
Pulse
PWM
Bias
&
Voltage
Reference
0.6V
EN
FB
SW
COMP
+
-
VIN
+
+
-
FBCOMP
EN
Driver
PDRV
NDRV
Soft start
GND
OUT
PWM
COMP
+
-
PG
Hi-Z
FB for
fixed output
IN
E.A.
+
-
+
Ramp
generator
COMP
+
-
VOUT
RST
SW
Lo-Iq
Lo-Iq
Lo-Iq
Lo-Iq
Lo-Iq
VTH
MODE/
VCON
ZCX
RAMP
COMP
+
-
0. 54V
0.66V
Figure 1: Functional Block Diagram


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