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MP2158 Arkusz danych(PDF) 8 Page - Monolithic Power Systems

Numer części MP2158
Szczegółowy opis  1A, 6V, 1.5MHz, 17A IQ, COT Synchronous Step Down Switcher In Ultra-small 2x1.5mm QFN
PDF  13 Pages
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Producent  MPS [Monolithic Power Systems]
Strona internetowa  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2158 Arkusz danych(HTML) 8 Page - Monolithic Power Systems

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MP2158 – 1A, 6V, 1.5MHz SYNCHRONOUS STEP-DOWN SWITCHER
MP2158 Rev. 1.0
www.MonolithicPower.com
8
10/10/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 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
+
-
COMP
+
-
0.66V
0.54V
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
V
TH
Figure 1: MP2158 Block Diagram



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