MAX1945SEUI+
IC REG BUCK ADJ/PROG 6A 28TSSOP
Pmic Voltage Regulators Dc Dc Switching Regulators
28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Obsolete
$6.58 / unit (market reference)
MOQ: 46 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | MAX1945SEUI+ |
| Package / Case | 28-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Topology | Buck |
| Voltage - Input (Min) | 2.6V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output | 0.8V (1.8V, 2.5V) |
| Current - Output | 6A |
| Frequency - Switching | 400kHz ~ 1.2MHz |
| Number of Outputs | 1 |
| Supplier Device Package | 28-TSSOP-EP |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
MAX1945SEUI+ 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 0.8V (1.8V, 2.5V). The 28-TSSOP (0.173", 4.40mm Width) 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
| Function | Step-Down |
| Topology | Buck |
| Output Type | Adjustable (Programmable) |
| Current - Output | 6A |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Frequency - Switching | 400kHz ~ 1.2MHz |
| Synchronous Rectifier | No |
| Voltage - Input (Max) | 5.5V |
| Voltage - Input (Min) | 2.6V |
| Voltage - Output (Max) | 4.68V |
| Voltage - Output (Min/Fixed) | 0.8V (1.8V, 2.5V) |
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