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CRCW06031K50FKEA Datasheet(PDF) 2 Page - Vishay Siliconix

Part # CRCW06031K50FKEA
Description  microBUCK SiC403 6 A, 28 V Integrated Buck Regulator with Programmable LDO
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Manufacturer  VISHAY [Vishay Siliconix]
Direct Link  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

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Document Number: 66550
S12-0628-Rev. C, 19-Mar-12
Vishay Siliconix
SiC403
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
For technical support, please contact: analogswitchtechsupport@vishay.com
PIN CONFIGURATION (TOP VIEW)
PAD 1
AGND
PAD 3
LX
PAD 2
VIN
PGND
LX
PGND
PGND
PGND
PGND
PGND
17
18
19
20
21
BST
VIN
FBL
AGND
VDD
VOUT
FB
1
2
3
4
5
7
6
8
SS
24
LX
23
22
31
30 29
25
26
27
28
32
PIN DESCRIPTION
Pin Number
Symbol
Description
1FB
Feedback input for switching regulator. Connect to an external resistor divider from output to program
output voltage.
2VOUT
Output voltage input to the controller. Additionally may be used to by pass LDO to supply VDD directly.
3VDD
Bias for internal logic circuitry and gate drivers. Connect to external 5V power supply or configure
the internal LDO for 5 V.
4, 30, PAD 1
AGND
Analog ground
5FBL
Feedback input for internal LDO. Connect to an external resistor divider from VDD to AGND to program
LDO output.
6, 9-11, PAD 2
VIN
Power stage input (HS FET Drain)
7
SS
Connect to an external capacitor to AGND to program softstart ramp
8
BST
Bootstrap pin. A capacitor is connected between BST and LX to provide HS driver voltage.
12
NC
Not internally connected
13, 23-25, 28, PAD 3
LX
Switching node (HS FET Source and LS FET Drain)
14
NC
Not internally connected
15-22
PGND
Power ground (LS FET Source)
26
PGOOD
Open-drain power good indicator. Externally pull-up resistor is required.
27
ILIM
Connect to an external resistor between ILIM and LX to program over current limit
29
EN/PSV
Tri-state pin. Pull low to AGND to disable the regulator. Float to enable forced continuous current
mode. Pull high to VDD to enable power save mode.
31
TON
Connect to an external resistor to AGND program on-time
32
ENL
Enable input for internal LDO. Pull down to AGND to disable internal LDO.
ORDERING INFORMATION
Part Number
Package
SiC403CD-T1-GE3
MLPQ55-32
SiC403DB
Evaluation board


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