High Efficiency,23V,2.0A Sychronous Step Down Regulator For Dimmable LED Driver
- Parameters
- Features
- Description
| Part Number | SY22728H1ADC |
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| Description | SYN Buck,Int. 23V/125mΩ&23V/75mΩ MOS,Analog dimming,Small dimming scale accuracy down to 1% dimming scale |
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| Topology | Buck |
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| Package | TSOT23-6 |
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| Vin_min (V) | 4 |
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| Vin_max (V) | 23 |
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| Io_max (A) | 1.5 |
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| Application | IR LED |
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- Wide Input Range: 4V-23V
- Up to 2.0A Output Current Capability
- Low RDS(ON) for Internal Switches
- High Side/Low Side:125mΩ/75mΩ
- Fixed 1MHz Switching Frequency
- Cycle by Cycle 3.5A Peak Current Limit for High Side and 2.5A Valley Current Limit for Low Side
- High Accuracy for Low Dimming Scale
- Down to 1% LED Rated Current
- Output Voltage Discharging
- Over Temperature Protection
- RoHS Compliant and Halogen Free
- Compact package: TSOT23-6
The SY22728H1 is a high efficiency synchronous step-down LED regulator that can deliver up to 2.0A output current. It operates at 1MHz and integrates two very low RDS(ON) power switches to minimize losses and reduce the external components.
The LED intensity can be changed by an external PWM. Using a PWM signal with a duty cycle between 1% and 100%, the LED current can be adjusted on a linear scale between 0.6% and 100%.
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY22728H1ADC is intended for evaluating High Efficiency,23V,2A Synchronous Step Down Regulator For Dimmable LED Driver
