LM3509SD/NOPB
IC LED DRVR RGLTR DIM 30MA 10SON
Pmic Led Drivers
10-WFDFN Exposed Pad
Active
$2.96 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Texas Instruments |
| Model | LM3509SD/NOPB |
| Package / Case | 10-WFDFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Topology | Step-Up (Boost) |
| Voltage - Output | 21V |
| Number of Outputs | 2 |
| Supplier Device Package | 10-SON (3x3) |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
LM3509SD/NOPB by Texas Instruments is a Step-Up (Boost) IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to N/A, output 21V. The 10-WFDFN Exposed Pad 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
| Type | DC DC Regulator |
| Dimming | I²C |
| Topology | Step-Up (Boost) |
| Frequency | 1.27MHz |
| Applications | Backlight |
| Voltage - Output | 21V |
| Number of Outputs | 2 |
| Internal Switch(s) | Yes |
| Voltage - Supply (Max) | 5.5V |
| Voltage - Supply (Min) | 2.7V |
| Current - Output / Channel | 30mA |
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