ETEK MICROELECTRONICS ET53628YB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.05 | $0.05 |
| 15+ | $0.05 | $0.75 |
| 25+ | $0.05 | $1.25 |
| 50+ | $0.04 | $2.00 |
| 100+ | $0.04 | $4.00 |
| N+ | $0.01 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | ETEK MICROELECTRONICS |
| Product Series | ET536XXYB |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 2.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.25V @ 300mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 70 µA |
| Current - Supply (Max) | - |
| PSRR | 78dB ~ 65dB (1kHz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 4-XDFN Exposed Pad |
| Supplier Device Package | 4-DFN (1x1) |
| ROHS |
The ET53628YB is a fixed 2.8V LDO regulator offering 300mA output in a compact 4-DFN (1x1mm) package. With an ultra-low dropout of 0.25V at full load and 70µA quiescent current, it is optimized for battery-powered applications. Its high PSRR (78dB at 1kHz) delivers clean power for RF and audio circuits. Ideal for wearables, hearing aids, and IoT devices.
- Ultra-Low Dropout: 0.25V at 300mA enables operation from 3.3V rails with minimal loss.
- Low Quiescent Current: 70µA quiescent current extends battery life in always-on sensors.
- High PSRR: 78dB at 1kHz rejects noise for reliable wireless communication.
- Compact DFN Package: 1x1mm footprint fits miniaturized medical and wearable devices.
Low-Power MCU Supply
Powers 2.8V microcontrollers in battery devices, with 70µA quiescent current and 300mA peak for flash programming.
Wireless Connectivity
Regulates 2.8V for BLE and LoRa modules, with 78dB PSRR at 1kHz ensuring stable RF performance.
Portable Instruments
Provides a clean 2.8V rail for handheld multimeters and thermometers, with tiny DFN package for compact enclosures.
Hearing Aids
Supplies 2.8V to audio DSPs in hearing aids, with ultra-low dropout maximizing battery utilization.
Smart Cards
Powers contactless smart card readers, with 300mA capacity handling peak communication currents.
Energy Harvesting
Regulates harvested energy to 2.8V for sensor nodes, with low quiescent current preserving stored energy.
- Q: What is the output voltage of the ET53628YB?
- A: The fixed output voltage is 2.8V DC.
- Q: What is the maximum output current?
- A: The maximum output current is 300mA.
- Q: What is the input voltage range?
- A: Input should be at least 0.25V above 2.8V (3.05V min); typical input is 3.3-5.5V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.25V at 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 70µA.
- Q: What package is available?
- A: The ET53628YB comes in a 4-DFN (1x1mm) package.
- Q: What is the output voltage of the ET53628YB?
- A: The fixed output voltage is 2.8V DC.
- Q: What is the maximum output current?
- A: The maximum output current is 300mA.
- Q: What is the input voltage range?
- A: Input should be at least 0.25V above 2.8V (3.05V min); typical input is 3.3-5.5V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.25V at 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 70µA.
- Q: What package is available?
- A: The ET53628YB comes in a 4-DFN (1x1mm) package.

ET53628YB.pdf