Rochester Electronics, LLC16-WFQFN Exposed PadRoHS
LM3503SQ-44
LED DRIVER, 10-SEGMENT
Category
Subcategory
Pmic Led Drivers
Package
16-WFQFN Exposed Pad
Status
Active
Datasheet
$0.71 / unit (market reference)
MOQ: 425 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
✅ 365-Day Warranty🚚 Global Shipping
Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | LM3503SQ-44 |
| Package / Case | 16-WFQFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Topology | Step-Up (Boost) |
| Voltage - Output | 44V |
| Number of Outputs | 2 |
| Supplier Device Package | 16-WQFN (4x4) |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
LM3503SQ-44 by Rochester Electronics, LLC 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 44V. The 16-WFQFN 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 | Analog, PWM |
| Topology | Step-Up (Boost) |
| Frequency | 1MHz |
| Applications | Backlight |
| Voltage - Output | 44V |
| Number of Outputs | 2 |
| Internal Switch(s) | Yes |
| Voltage - Supply (Max) | 5.5V |
| Voltage - Supply (Min) | 2.5V |
| Current - Output / Channel | 750mA (Switch) |
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