High Efficiency 5.5V, 2A continuous, 3A peak, 1MHz Synchronous Step Down Regulator
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- Parameters
- Features
- Description
| Part Number | SY20149AAAC |
|---|
| Vin_min (V) | 2.7 |
|---|
| Vin_max (V) | 5.5 |
|---|
| Io_max (A) | 2 |
|---|
| Channels | |
|---|
| Vo_min (V) | 0.6 |
|---|
| Fsw (MHz) | 1 |
|---|
| Vref (V) | |
|---|
| Vref Accuracy | ±2% |
|---|
| Iq (uA) | 55 |
|---|
| Rdson1 | 110 |
|---|
| Rdson2 | 80 |
|---|
| Soft Start | 1.2 |
|---|
| Package | SOT23-5 |
|---|
| Topology | |
|---|
| Protection Mode | Hic-cup SCP |
|---|
| Features / Special Function | Non latch off protection |
|---|
| Temp Range | |
|---|
- Low RDS(ON) for internal switches(top/bottom):110mΩ/80mΩ
- 2.7-5.5V input voltage range
- 2A continuous, 3A peak load current capability
- 1MHz switching frequency minimizes the external components
- Internal softstart limits the inrush current
- Latch off protection
- 100% dropout operation
- RoHS Compliant and Halogen Free
- Compact package: SOT23-5
The SY20149A is a high-efficiency, high frequency synchronous step-down DC-DC regulator IC capable of delivering up to 2A output current. The SY20149A operates over a wide input voltage range from 2.7V to 5.5V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.
Low output voltage ripple and small external inductor and capacitor sizes are achieved with greater than 1MHz switching frequency.
Evaluation Board
Photo of evaluation board
Photo of evaluation board
DB_SY20149AAAC is intended for evaluating 1 MHz, 2A synchronous buck regulator. It features enable control, output voltage selection inputs.
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