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MIC28512 Datasheet(PDF) 2 Page - Microchip Technology

Part # MIC28512
Description  70V, 2A Synchronous Buck Regulator
PDF  34 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MIC28512 Datasheet(HTML) 2 Page - Microchip Technology

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MIC28512
DS20005524A-page 2
 2016 Microchip Technology Inc.
Typical Application Circuit
Functional Block Diagram
MIC28512
3x4 FQFN
V
OUT
5V (0A TO 2A)
AGND
V
IN
5.5V – 70V
EN
PGND
VIN
PVDD
FREQ
VDD
FB
SW
LX
BST
ILIM
PVIN
MIC28512
SW
EN
PGND
PVIN
PGOOD
VDD
BST
V
REF
0.8V
POWER GOOD
COMPARATOR
PVDD
FREQ
M1
M2
R1
R2
R
INJ
C
INJ
C
OUT
C
IN
3.3V
C
FF
R
LIM
R
PGOOD
D
BST
C
BST
R3
R4
C
VDD
ON
OFF
PVDD
L
VIN
VOUT
VIN
DH
DL
10,
11,
22,
23,
26
1
2
12,
21,
27
5
4, 7, 8, 9, 25
6
3
LX
R
BST
18
PGND
ILIM
ZCD
17
20
19
LINEAR
REGULATOR
UVLO
16
THERMAL
SHUTDOWN
24
FIXED T
ON
ESTIMATION
SOFT-START
CONTROL
LOGIC
14
13
15
X90%
CURRENT
LIMIT
DETECTION
AGND
FB



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