High Efficiency, Fast Response, 2.0A, 18V Input
Synchronous Step Down Regulator
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- Parameters
- Features
- Description
| Part number |
SY21072IABC |
| Channel(#) |
|
| Vin (min) (V) |
4.2 |
| Vin (max) (V) |
18 |
| Switching frequency (min)(kHz) |
|
| Switching frequency (max)(kHz) |
|
| Vout (min) (V) |
0.6 |
| Vout (max) (V) |
|
| Iout (max) (A) |
2 |
| 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 |
Hic-cup SCP |
| Package |
SOT23-6 |
| Operating temperature range(°C) |
|
| Functional safety category |
|
- Low RDS(ON) for Internal Switches (Top/Bottom): 130mΩ/105mΩ
- 4.2-18V Input Voltage Range
- 2A Output Current Capability
- 500kHz Switching Frequency Minimize the External Components
- Stable with 10µF COUT and 1.5µH 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
- RoHS Compliant and Halogen Free
- Compact Package SOT23-6
The SY21072I is a high efficiency, synchronous step-down DC/DC converter capable of delivering 2A load current. The SY21072I 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 SY21072I 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 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_SY21072IABC is intended for evaluating 21μA ultra low IQ, 1.5MHz, 2A synchronous step down regulator.
