UM1663S
STEP UP DC DC CONVERTER

Pmic Led Drivers
SOT-23-6
Active
$0.88 / unit (market reference)
MOQ: 2 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Union Semiconductor (HK) Limited |
| Model | UM1663S |
| Package / Case | SOT-23-6 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Topology | Step-Up (Boost) |
| Voltage - Output | 2.8V ~ 36V |
| Number of Outputs | 1 |
| Supplier Device Package | SOT-23-6 |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
UM1663S by Union Semiconductor (HK) Limited 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 2.8V ~ 36V. The SOT-23-6 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 | PWM |
| Topology | Step-Up (Boost) |
| Frequency | 1MHz |
| Applications | General Purpose |
| Voltage - Output | 2.8V ~ 36V |
| Number of Outputs | 1 |
| Internal Switch(s) | Yes |
| Voltage - Supply (Max) | 5.5V |
| Voltage - Supply (Min) | 2.8V |
| Current - Output / Channel | 1A (Switch) |
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