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TPS54386-Q1 Datasheet(PDF) 11 Page - Texas Instruments

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Part # TPS54386-Q1
Description  3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54386-Q1 Datasheet(HTML) 11 Page - Texas Instruments

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7
FB1
+
Soft Start
1
C
COMP
+
S
Q
Q
R
R
+
Current
Comparator
BP
f(I
DRAIN1) + DC(ofst)
2
1
3
Anti-Cross
Conduction
1.2 MHz
Oscilator
Divide
by 2/4
Ramp
Gen 1
Ramp
Gen 2
CLK1
CLK2
BP
CLK1
Weak
Pull-Down
MOSFET
5
EN1
6
EN2
6 mA
6 mA
VDD2
Internal
Control
10
SEQ
150 kW
150 kW
Output
Undervoltage
Detect
BP
FB1
FB2
CLK1
4
GND
8
FB2
+
Soft Start
2
C
COMP
+
S
Q
Q
R
R
+
Current
Comparator
BP
13
14
12
Anti-Cross
Conduction
BP
CLK2
Weak
Pull-Down
MOSFET
11
BP
9
ILIM2
150 kW
150 kW
BP
CLK2
4
GND
Level
Select
5.25-V
Regulator
References
BOOT1
PVDD1
SW1
BOOT2
PVDD2
SW2
f(I
DRAIN2) + DC(ofst)
0.8 V
REF
I
MAX2 (Set to one of three limits)
f(I
DRAIN1)
f(I
MAX1)
Overcurrent Comp
f(I
SLOPE1)
Level
Shift
Level
Shift
f(I
DRAIN2)
f(I
MAX2)
f(I
SLOPE2)
FET
Switch
TSD
PVDD2
f(I
SLOPE1)
f(I
SLOPE2)
SD1
SD2
UVLO
0.8 V
REF
SD2
0.8 V
REF
SD1
UDG-07124
Overcurrent Comp
R
COMP
R
COMP
TPS54386-Q1
www.ti.com
SLUSAZ9A – MARCH 2012 – REVISED MARCH 2012
BLOCK DIAGRAM
Copyright © 2012, Texas Instruments Incorporated
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