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SIC417DB Datasheet(PDF) 2 Page - Vishay Siliconix

Part # SIC417DB
Description  microBUCKTM SiC417 10-A, 28-V Integrated Buck Regulator with Programmable LDO
PDF  21 Pages
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Manufacturer  VISHAY [Vishay Siliconix]
Direct Link  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SIC417DB Datasheet(HTML) 2 Page - Vishay Siliconix

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Document Number: 69062
S10-1367-Rev. D, 14-Jun-10
Vishay Siliconix
SiC417
PIN CONFIGURATION
FB
FBL
V5V
AGND
VOUT
VIN
VLDO
BST
LX
LX
PGND
PGND
PGND
PGND
PGND
PGND
PAD 1
AGND 34
PAD 2
VIN 35
PAD 3
LX 33
PIN DESCRIPTION
Pin Number
Symbol
Description
1FB
Feedback input for switching regulator. Connect to an external resistor divider from output to program the
output voltage.
2
FBL
Feedback input for the LDO. Connect to an external resistor divider from VLDO to program the VLDO output.
3V5V
5 V power input for internal analog circuits and gate drives. Connect to external 5 V supply or configure the
LDO for 5 V and connect to VLDO.
4, 30, PAD 1
AGND
Analog ground.
5VOUT
Output voltage input to the SiC417. Additionally, may be used to bypass LDO to supply VLDO directly.
6, 9 - 11, PAD 2
VIN
Input supply voltage.
7VLDO
LDO output.
8BST
Bootstrap pin. A capacitor is connected between BST to LX to develop the floating voltage for the high-side
gate drive.
12
DH
High-side gate drive - do not connect this pin.
14
DL
Low-side gate drive - do not connect this pin.
13, 23 - 25, 28,
PAD 3
LX
Switching (Phase) node.
15-22
PGND
Power ground.
26
PGOOD
Open-drain power good indicator. High impedance indicates power is good. An external pull-up resistor is
required.
27
ILIM
Current limit sense point - to program the current limit connect a resistor from ILIM to LX.
29
EN/PSV
Tri-state pin. Enable input for switching regulator. Connect EN to AGND to disable the switching regulator.
Float pin for forced continuous and pull high for power-save mode.
31
tON
On-time set input. Set the on-time by a series resistor to the input supply voltage.
32
ENL
Enable input for the LDO. Connect ENL to AGND to disable the LDO.
ORDERING INFORMATION
Part Number
Package
SiC417CD-T1-E3
MLPQ55-32
SiC417DB
Evaluation board



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