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LTC3828 Datasheet(PDF) 9 Page - Linear Technology

Part # LTC3828
Description  Dual 2-Phase Step-Down Controller with Tracking
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3828 Datasheet(HTML) 9 Page - Linear Technology

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LTC3828
3828f
9
FU CTIO AL DIAGRA
SWITCH
LOGIC
–
+
5V
VIN
4.5V
BINH
CLK2
CLK1
0.18
µA
+
–
FCB
+
–
–
+
0.8V
VREF
INTERNAL
SUPPLY
RLP
CLP
3V
FCB/PLLIN
INTVCC
SGND (UH PACKAGE PAD)
+
5V LDO REG
SW
SHDN
0.55V
TOP
BOOST
TG
CB
CIN
D1
DB
PGND
BOT
BG
DRVCC
DRVCC
VIN
+
COUT
VOUT
3828 FD/F01
RSENSE
+
VOSENSE
DROP
OUT
DET
RUN
SOFT
START
BOT
TOP ON
S
R
Q
Q
OSCILLATOR
PHASE DET
PLLFLTR
CLKOUT
FCB
EA
0.86V
0.80V
OV
VFB
6V
R1
–
+
R2
RC
4(VFB)
RST
SHDN
RUN
ITH
CC
CC2
4(VFB)
0.86V
SLOPE COMP
3mV
+
–
–
+
SENSE–
SENSE+
INTVCC
30k
45k
2.4V
45k
30k
100k
Ω
I1
I2
B
DUPLICATE FOR SECOND
CONTROLLER CHANNEL
CSS
+
–
–
+
PHASE LOGIC
PHSMD
+
–
+
–
+
–
+
–
PGOOD
VOSENSE1
VOSENSE2
0.86V
0.74V
0.86V
0.74V
PLL
DETECTOR
TRCKSS
1.2
µA
DRVCC
Figure 1



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