Rochester Electronics, LLC20-UFBGA, WLCSPRoHS
FAN53555UC24X
SWITCHING REGULATOR, VOLTAGE-MOD
Category
Subcategory
Pmic Voltage Regulators Dc Dc Switching Regulators
Package
20-UFBGA, WLCSP
Series
TinyBuck®
Status
Active
Datasheet
$0.36 / unit (market reference)
MOQ: 823 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 | FAN53555UC24X |
| Package / Case | 20-UFBGA, WLCSP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Topology | Buck |
| Voltage - Input (Min) | 2.5V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output | 0.603V |
| Current - Output | 4A |
| Frequency - Switching | 2.4MHz |
| Number of Outputs | 1 |
| Supplier Device Package | 20-WLCSP (1.96x1.56) |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
FAN53555UC24X by Rochester Electronics, LLC is a Buck IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 5.5V, output 0.603V. The 20-UFBGA, WLCSP 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-Down |
| Topology | Buck |
| Output Type | Programmable |
| Current - Output | 4A |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Frequency - Switching | 2.4MHz |
| Synchronous Rectifier | Yes |
| Voltage - Input (Max) | 5.5V |
| Voltage - Input (Min) | 2.5V |
| Voltage - Output (Max) | 1.42V |
| Voltage - Output (Min/Fixed) | 0.603V |
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