SIC401 Datasheet, PDF (1/10 Pages) Vishay Siliconix – Selectable frequency from 200 kHz to 1 MHz with an external resistor

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SiC401, SiC402, SiC403
Vishay Siliconix
Reference Board User’s Manual for SiC403 (6 A), SiC402 (10 A),
and SiC401 (15 A) Synchronous Buck Regulators
PRODUCT SUMMARY SiC401A, SIC401BCD
Input Voltage Range
3 V to 17 V
Output Voltage Range
Operating Frequency
0.6 V to V_IN x 0.75
200 kHz to 1 MHz
Continuous Output Current
15 A
Package
MLP55-32L
PRODUCT SUMMARY SiC402A, SIC402BCD
Input Voltage Range
3 V to 28 V
Output Voltage Range
0.6 V to V_IN x 0.75
Operating Frequency
200 kHz to 1 MHz
Continuous Output Current
10 A
Package
MLP55-32L
PRODUCT SUMMARY SiC403A, SIC403BCD
Input Voltage Range
3 V to 28 V
Output Voltage Range
0.6 V to V_IN x 0.75
Operating Frequency
200 kHz to 1 MHz
Continuous Output Current
6A
Package
MLP55-32L
Note
• External divider network needed
DESCRIPTION
The SiC401, SiC402, and SiC403 are high frequency
voltage-mode constant-on-time (CM-COT) synchronous
buck regulators with integrated high-side and low-side
power MOSFETs. The SiC403 is capable of 6 A continuous
current, the SiC402 is capable of 10 A and the SiC401 15 A.
These regulators produce an adjustable output voltage
which in standard setup can output 5 V down to 0.6 V
and with the V_OUT divider network 75 % of V_IN down to
0.6 V to accommodate a variety of applications, including
computing, consumer electronics, telecom, and industrial.
The CM-COT architecture delivers ultra-fast transient
response with minimum output capacitance and tight ripple
regulation at very light load. The parts are stable with any
capacitor type and no ESR network is required for loop
stability. The regulator integrates a full protection feature
set, it also has UVLO for the input rail and an internal
soft-start.
The SiC40X family is available in lead (Pb)-free power
enhanced 5 mm x 5 mm MLP55-32L package.
FEATURES
• SiC401A/B: 3 V to 17 V input range.
SiC402A/B, SiC403A/B: 3 V to 28 V input range.
• Adjustable output voltage down to 0.6 V
• 6 A (SiC403), 10 A (SiC402), and 15 A (SiC401) continuous
output current
• Selectable frequency from 200 kHz to 1 MHz with an
external resistor
• 95 % peak efficiency
• Stable with any capacitor; no external ESR network
required
• Ultrafast transient response
• Power saving scheme for increased light load efficiency
• ± 1 % accuracy of V_OUT setting
• Cycle-by-cycle current limit
• Fully protected with OTP, SCP, UVP, OVP
• P_GOOD Indicator
• -40 °C to +125 °C operating junction temperature
• Output voltage tracking
APPLICATIONS
• Point of load regulation for low-power processors,
network processors, DSPs, FPGAs, and ASICs
• Low voltage, distributed power architectures with 5 V or
12 V, or 24 V rails
• Computing, broadband, networking, LAN / WAN, optical,
test, and measurement
• A / V, high density cards, storage, DSL, STB, DVR, DTV,
industrial PC
ORDERING INFORMATION
BOARD PART NUMBER
SiC403DB-LC
SiC402DB-HC
SiC401DB-HC
MAX. OUTPUT CURRENT
6A
10 A
15 A
Notes
• LC - low current inductor, HC - high current inductor
• The only difference between HC and LC board is the O / P
inductor size
Revision: 17-Nov-14
1
Document Number: 62923
For technical questions, contact: [e-mail]
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ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000