STMicroelectronics16-SOIC (0.154", 3.90mm Width)RoHS
E-L5991AD
IC REG CTRLR FLYBACK 16SOIC
Category
Subcategory
Pmic Voltage Regulators Dc Dc Switching Controllers
Package
16-SOIC (0.154", 3.90mm Width)
Status
Obsolete
$2.12 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | STMicroelectronics |
| Model | E-L5991AD |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Topology | Flyback |
| Frequency - Switching | Up to 1MHz |
| Number of Outputs | 1 |
| Supplier Device Package | 16-SO |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
E-L5991AD by STMicroelectronics is a Flyback IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to N/A, output adjustable. The 16-SOIC (0.154", 3.90mm Width) 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
| Function | Step-Up/Step-Down |
| Topology | Flyback |
| Clock Sync | No |
| Output Type | Transistor Driver |
| Output Phases | 1 |
| Control Features | Current Limit, Frequency Control, Soft Start |
| Duty Cycle (Max) | 93% |
| Number of Outputs | 1 |
| Output Configuration | Positive, Isolation Capable |
| Frequency - Switching | Up to 1MHz |
| Synchronous Rectifier | Yes |
| Voltage - Supply (Vcc/Vdd) | 7.6V ~ 20V |
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