A8651KLPTR-T-1
IC REG BUCK ADJ 2A DL 20TSSOP
Pmic Voltage Regulators Dc Dc Switching Regulators
20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Automotive, AEC-Q100
Active
$1.99 / unit (market reference)
MOQ: 8000 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Allegro MicroSystems |
| Model | A8651KLPTR-T-1 |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Topology | Buck |
| Voltage - Input (Min) | 2.5V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output | 0.8V |
| Current - Output | 2A |
| Frequency - Switching | 350kHz ~ 2.2MHz |
| Number of Outputs | 2 |
| Supplier Device Package | 20-TSSOP-EP |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
A8651KLPTR-T-1 by Allegro MicroSystems 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. The 20-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 |
| Current - Output | 2A |
| Number of Outputs | 2 |
| Output Configuration | Positive |
| Frequency - Switching | 350kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Voltage - Input (Max) | 5.5V |
| Voltage - Input (Min) | 2.5V |
| Voltage - Output (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 0.8V |
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