The Vishay Siliconix SiC401A/B, SiC402A/B and SiC403A/B are advanced stand-alone synchronous buck regulators, featuring integrated power MOSFETs, bootstrap switch, and a programmable LDO in a space-saving PowerPAK MLP55-32L pin packages.
The SiC401A/B, SiC402A/B and SiC403A/B are capable of operating with all ceramic solutions and switching frequencies up to 1 MHz. The programmable frequency, synchronous operation and selectable power-save feature allow operation at high efficiency across the full range of load current.
The internal LDO may be used to supply 5 V for the gate drive circuits or it may be bypassed with an external 5 V for optimum efficiency and used to drive external n-channel MOSFETs or other loads. Additional features include cycle-by-cycle current limit, voltage soft-start, under-voltage protection, programmable over-current protection, soft shutdown and selectable power-save. Both the SiC401A/B, SiC402A/B and SiC403A/B provides an enable input and a power good output.
| Manufacturer | Vishay Siliconix |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | SIC402DB-ND |
| Eval Board Supplier | Vishay Siliconix |
| Eval Board |
Board not Stocked
|
| Topology |
Step Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
1.2 V
|
| Current Out |
10 A
|
| Voltage In |
3 ~ 28 V
|
| Efficiency @ Conditions |
>90%, 5V in, 1.5V @ 0.2 ~ 7 A (PSM)
>90%, 12V in, 1.5V @ 1 ~ 7.3 A (PSM) |
| Voltage Out Range |
0.6 ~ 5.5 V
|
| Features |
Current Limit (Adj. or Fixed)
LDO Regulator(s), On-Chip Over Current Protection Over Voltage Protection Power Good Output Power Save Mode Shutdown, Enable, Standby Soft Start Under Voltage Protection, Brown-Out Voltage Reference |
| Switching Frequency |
200 kHz ~ 1 MHz
|
| Standby Current [Typical] |
10 µA
|
| Quiescent Current [Typical] |
160 µA
|
| Component Count + Extras |
47 + 15
|
| Internal Switch |
Yes
|
| Design Author |
Vishay Siliconix
|
| Application / Target Market |
Computers
LCD TV / Monitor Networking Point of Load (PoL) Printer, Plotter Servers Set-Top Boxes Telecom |
| Standby Current [Maximum] |
20 µA
|
| Quiescent Current [Maximum] |
- Not Given
|
| Main I.C. Base Part |
SIC402
|
| Date Created By Author | |
| Date Added To Library | 2014-10 |
Austria
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