High Efficiency Fast Response, 3A, 23V Input Synchronous Step Down Regulator
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- Parameters
- Features
- Description
| Part number |
SY21147FCC |
| Channel(#) |
|
| Vin (min) (V) |
4.5 |
| Vin (max) (V) |
23 |
| Switching frequency (min)(kHz) |
|
| Switching frequency (max)(kHz) |
|
| Vout (min) (V) |
0.6 |
| Vout (max) (V) |
|
| Iout (max) (A) |
3 |
| Vout2 (min)(V) |
|
| Vout2 (max )(V) |
|
| Iout2 (max)(A) |
|
| Vref accuracy (±%) |
±1.5% |
| Vout accuracy(±%) |
|
| Control mode |
|
| Duty cycle (max)(%) |
|
| Operation mode |
|
| Iq (typ) (uA) |
|
| Features |
|
| Package |
SO8E |
| Operating temperature range(°C) |
|
| Functional safety category |
|
- Low RDS(ON) for Internal Switches (Top/Bottom): 130/90mΩ
- 4.5-23V Input Voltage Range
- Instant PWM Architecture to Achieve Fast Transient Responses
- Programmable Softstart Limits the Inrush Current
- Pseudo-constant Frequency: 500kHz
- 3A Output Current Capability
- 1.5% 0.6V Reference
- RoHS Compliant and Halogen Free
- Compact Package: SO8E
SY21147 develops a high efficiency synchronous step-down DC/DC converter capable of delivering 3A output current. SY21147 operates over a wide input voltage range from 4.5V to 23V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.
SY21147 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 500kHz under continuous conduction mode to minimize the size of inductor and capacitor.
Evaluation Board
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Photo of evaluation board
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Photo of evaluation board
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Photo of evaluation board
The EVB_SY21147FCC is intended for evaluating fast response, 3A, 20V input synchronous Buck regulator.
