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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) 1.2V
Voltage - Output (Max) -
Voltage Dropout (Max) 0.26V @ 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 RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ET53612YB from ETEK Microelectronics is a fixed 1.2V LDO regulator offering 300mA output current. Its 4-pin DFN package (1mm x 1mm) is ultra-compact. With a dropout of just 0.26V at full load and a quiescent current of 70µA, it is optimized for battery-powered devices. PSRR of 78dB at 1kHz ensures clean power for sensitive electronics.

  • High Output Current: 300mA supports more demanding loads.
  • Ultra-Low Dropout: 0.26V at 300mA maximizes efficiency.
  • Excellent PSRR: 78dB at 1kHz rejects noise.
  • Compact DFN: 1x1mm footprint for miniaturized designs.

Portable Electronics

Power 1.2V logic cores in smartphones and tablets, with 300mA capability for moderate loads.

Battery-Powered Sensors

Low 70µA quiescent current extends battery life in wireless sensor networks.

FPGA Auxiliary Supply

Provide 1.2V to FPGA auxiliary rails, ensuring stable operation with 78dB PSRR at 1kHz.

Bluetooth Modules

Supply 1.2V to Bluetooth SoCs, reducing noise with high PSRR across frequencies.

Wearable Health Monitors

The 1x1mm DFN package fits in compact health patches, delivering reliable power.

Industrial IoT Gateways

Regulate 1.2V for microcontrollers in industrial settings, with low dropout for efficiency.

Q: What is the output voltage of the ET53612YB?
A: The ET53612YB provides a fixed output voltage of 1.2V.
Q: What is the maximum output current?
A: The maximum output current is 300mA.
Q: What is the input voltage range?
A: The input voltage range is not specified in the provided data; typically for 1.2V output, input should be above 1.5V.
Q: What is the dropout voltage?
A: The dropout voltage is 0.26V at 300mA load.
Q: What is the quiescent current?
A: The quiescent current is 70 µA (typical).
Q: What package is available?
A: It comes in a 4-pin DFN (1mm x 1mm) package.
Base Product Number : ET53612
1.2V 300mA DFN ETEK High PSRR LDO Linear Regulator Low Dropout
Q: What is the output voltage of the ET53612YB?
A: The ET53612YB provides a fixed output voltage of 1.2V.
Q: What is the maximum output current?
A: The maximum output current is 300mA.
Q: What is the input voltage range?
A: The input voltage range is not specified in the provided data; typically for 1.2V output, input should be above 1.5V.
Q: What is the dropout voltage?
A: The dropout voltage is 0.26V at 300mA load.
Q: What is the quiescent current?
A: The quiescent current is 70 µA (typical).
Q: What package is available?
A: It comes in a 4-pin DFN (1mm x 1mm) package.