STMicroelectronicsTO-243AARoHS
LD2981ABU50TR
IC REG LINEAR 5V 100MA SOT89-3
Category
Subcategory
Pmic Voltage Regulators Linear
Package
TO-243AA
Status
Active
$0.92 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | STMicroelectronics |
| Model | LD2981ABU50TR |
| Package / Case | TO-243AA |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Voltage - Input (Max) | 16V |
| Voltage - Output | 5V |
| Current - Output | 100mA |
| Supplier Device Package | SOT-89-3 |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
LD2981ABU50TR by STMicroelectronics is a power conversion IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 16V, output 5V. The TO-243AA package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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All Technical Specifications
| PSRR | 63dB (1kHz) |
| Output Type | Fixed |
| Current - Output | 100mA |
| Protection Features | Over Current, Over Temperature |
| Number of Regulators | 1 |
| Output Configuration | Positive |
| Voltage - Input (Max) | 16V |
| Voltage Dropout (Max) | 0.375V @ 100mA |
| Current - Supply (Max) | 2.6 mA |
| Current - Quiescent (Iq) | 150 µA |
| Voltage - Output (Min/Fixed) | 5V |
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