Silergy SY8121C1ABC
| Manufacturer | SilergyAsian Brands |
| MPN | SY8121C1ABC |
| LCSC Part # | C3014424 |
| Packaging | SOT-23-6 |
| Customer # | |
| Key Attributes | High Efficiency, Fast Response, 1.2MHz, 2.0A, 18V Input Synchronous Step Down Regulator |
| Datasheet |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | Silergy | |
| Packaging | SOT-23-6 | |
| Operating Temperature | -40℃~+85℃@(TA) | |
| Frequency - Switching | 1.2MHz | |
| Number of Outputs | 1 | |
| Function | Step-down type | |
| Features | Cycle-by-cycle current limiting;Hiccup current limiting;Overcurrent Protection | |
| Topology | Buck | |
| Output Type | Adjustable | |
| Operating Voltage | 4.2V~18V | |
| Switch tube (built-in/external) | Built-in | |
| Output Voltage | - | |
| Output Current | 2A | |
| Quiescent Current | 250uA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | Silergy | |
| Packaging | SOT-23-6 | |
| Operating Temperature | -40℃~+85℃@(TA) | |
| Frequency - Switching | 1.2MHz | |
| Number of Outputs | 1 | |
| Function | Step-down type | |
| Features | Cycle-by-cycle current limiting;Hiccup current limiting;Overcurrent Protection |
| Type | Description | |
|---|---|---|
| Topology | Buck | |
| Output Type | Adjustable | |
| Operating Voltage | 4.2V~18V | |
| Switch tube (built-in/external) | Built-in | |
| Output Voltage | - | |
| Output Current | 2A | |
| Quiescent Current | 250uA |
Introduction
The SY8121C1 is a high efficiency, synchronous stepdown DC/DC converter capable of delivering 2A load current. The SY8121C1 operates over a wide input voltage range from 4.2V to 18V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The SY8121C1 adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 1.2MHz to minimize the size of inductor and capacitor.
Features
- Low RDS(ON) for Internal Switches (Top/Bottom): 130mΩ/105mΩ
- 4.2 - 18V Input Voltage Range
- 2A Output Current Capability
- 1.2MHz Switching Frequency
- Minimize the External Components
- Stable with 10μF COUT and 1μH Inductor
- Instant PWM Architecture to Achieve Fast Transient Responses
- Internal Soft-start Limits the Inrush Current
- Cycle-by-cycle Peak/Valley Current Limitation
- Hic-cup Mode Output Short Circuit Protection
- Thermal Shutdown with Auto Recovery
- Compact Package SOT23-6
Applications
- Set Top Box
- Portable TV
- DSL Modem
- LCD TV
- IP CAM
- Networking
| Qty | Unit Price | Total Amount |
|---|---|---|
| 5+ | $ 0.1641 | $ 0.82 |
| 50+ | $ 0.127 | $ 6.35 |
| 150+ | $ 0.1112 | $ 16.68 |
| 500+ | $ 0.0914 | $ 45.70 |
| 3,000+ | $ 0.0825 | $ 247.50 |
| 6,000+ | $ 0.0772 | $ 463.20 |
Standard Packaging3000/Full Reel | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | Silergy | |
| Packaging | SOT-23-6 | |
| Operating Temperature | -40℃~+85℃@(TA) | |
| Frequency - Switching | 1.2MHz | |
| Number of Outputs | 1 | |
| Function | Step-down type | |
| Features | Cycle-by-cycle current limiting;Hiccup current limiting;Overcurrent Protection | |
| Topology | Buck | |
| Output Type | Adjustable | |
| Operating Voltage | 4.2V~18V | |
| Switch tube (built-in/external) | Built-in | |
| Output Voltage | - | |
| Output Current | 2A | |
| Quiescent Current | 250uA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | Silergy | |
| Packaging | SOT-23-6 | |
| Operating Temperature | -40℃~+85℃@(TA) | |
| Frequency - Switching | 1.2MHz | |
| Number of Outputs | 1 | |
| Function | Step-down type | |
| Features | Cycle-by-cycle current limiting;Hiccup current limiting;Overcurrent Protection |
| Type | Description | |
|---|---|---|
| Topology | Buck | |
| Output Type | Adjustable | |
| Operating Voltage | 4.2V~18V | |
| Switch tube (built-in/external) | Built-in | |
| Output Voltage | - | |
| Output Current | 2A | |
| Quiescent Current | 250uA |
Introduction
The SY8121C1 is a high efficiency, synchronous stepdown DC/DC converter capable of delivering 2A load current. The SY8121C1 operates over a wide input voltage range from 4.2V to 18V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The SY8121C1 adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 1.2MHz to minimize the size of inductor and capacitor.
Features
- Low RDS(ON) for Internal Switches (Top/Bottom): 130mΩ/105mΩ
- 4.2 - 18V Input Voltage Range
- 2A Output Current Capability
- 1.2MHz Switching Frequency
- Minimize the External Components
- Stable with 10μF COUT and 1μH Inductor
- Instant PWM Architecture to Achieve Fast Transient Responses
- Internal Soft-start Limits the Inrush Current
- Cycle-by-cycle Peak/Valley Current Limitation
- Hic-cup Mode Output Short Circuit Protection
- Thermal Shutdown with Auto Recovery
- Compact Package SOT23-6
Applications
- Set Top Box
- Portable TV
- DSL Modem
- LCD TV
- IP CAM
- Networking
C3014424 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |



