Silergy SY21245RBC, 1-Channel Buck, Switching Regulator, 8 A, 5.5V 500 kHz, QFN 20-Pin
- RS Stock No.:
- 820-290
- Mfr. Part No.:
- SY21245RBC
- Manufacturer:
- Silergy
N
Bulk discount available
View bulk pricing optionsSubtotal (1 pack of 2 units)*
TWD281.00
(exc. GST)
TWD295.04
(inc. GST)
FREE delivery for orders over NT$1,300.00
In Stock
- Plus 3,000 unit(s) shipping from October 19, 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Pack* |
|---|---|---|
| 2 - 18 | TWD140.50 | TWD281.00 |
| 20 - 98 | TWD114.00 | TWD228.00 |
| 100 - 198 | TWD110.50 | TWD221.00 |
| 200 + | TWD107.00 | TWD214.00 |
*price indicative
- RS Stock No.:
- 820-290
- Mfr. Part No.:
- SY21245RBC
- Manufacturer:
- Silergy
Specifications
Product overview and Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Silergy | |
| Product Type | Switching Regulator | |
| Regulator Type | Buck | |
| Number of Outputs | 1 | |
| Output Voltage | 5.5V | |
| Switching Frequency | 500kHz | |
| Mount Type | Surface Mount | |
| Polarity | Positive | |
| Quiescent Current | 60μA | |
| Package Type | QFN | |
| Pin Count | 20 | |
| Output Current | 8A | |
| Power Rating | 3.6W | |
| Output Type | Adjustable | |
| Switching Regulator | Yes | |
| Series | SY21 | |
| Standards/Approvals | RoHS | |
| Width | 3.6mm | |
| Length | 3.6mm | |
| Height | 850μm | |
| Maximum Input Voltage | 40V | |
| Maximum Operating Temperature | 125°C | |
| Minimum Operating Temperature | -40°C | |
| Minimum Input Voltage | 4V | |
| Automotive Standard | No | |
| Select all | ||
|---|---|---|
Brand Silergy | ||
Product Type Switching Regulator | ||
Regulator Type Buck | ||
Number of Outputs 1 | ||
Output Voltage 5.5V | ||
Switching Frequency 500kHz | ||
Mount Type Surface Mount | ||
Polarity Positive | ||
Quiescent Current 60μA | ||
Package Type QFN | ||
Pin Count 20 | ||
Output Current 8A | ||
Power Rating 3.6W | ||
Output Type Adjustable | ||
Switching Regulator Yes | ||
Series SY21 | ||
Standards/Approvals RoHS | ||
Width 3.6mm | ||
Length 3.6mm | ||
Height 850μm | ||
Maximum Input Voltage 40V | ||
Maximum Operating Temperature 125°C | ||
Minimum Operating Temperature -40°C | ||
Minimum Input Voltage 4V | ||
Automotive Standard No | ||
- COO (Country of Origin):
- CN
The Silergy synchronous buck converter is designed to deliver 8A output current across a wide input voltage range from 4V to 40V, utilising Advanced control strategies for superior performance.
Low RDS(ON) for internal MOSFETs ensures minimal conduction loss
Wide input voltage range allows flexibility in various applications
Integrated soft-start limits inrush current for added system stability
Programmable valley current limit thresholds enhance operational flexibility
Cycle-by-cycle current limit protection ensures device safety
Auto-recovery from short-circuit and over-temperature conditions improves reliability
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