A81407KLVATR
PMIC FOR SAFETY-RELATED SYSTEMS
Pmic Voltage Regulators Linear Switching
38-TFSOP (0.173", 4.40mm Width) Exposed Pad
Automotive, AEC-Q100
Active
$7.06 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Allegro MicroSystems |
| Model | A81407KLVATR |
| Package / Case | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Topology | Step-Down (Buck) (1) or Step-Down/Step-Up (Buck/Boost) (1), Linear (LDO) (4) |
| Frequency - Switching | 2.2MHz |
| Number of Outputs | 9 |
| Supplier Device Package | 38-eTSSOP |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
A81407KLVATR by Allegro MicroSystems is a Step-Down (Buck) (1) or Step-Down/Step-Up (Buck/Boost) (1), Linear (LDO) (4) IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to N/A, output adjustable. The 38-TFSOP (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
| Topology | Step-Down (Buck) (1) or Step-Down/Step-Up (Buck/Boost) (1), Linear (LDO) (4) |
| w/Sequencer | Yes |
| w/LED Driver | No |
| w/Supervisor | No |
| Voltage - Supply | 3.8V ~ 36V |
| Number of Outputs | 9 |
| Frequency - Switching | 2.2MHz |
| Voltage/Current - Output 1 | Fixed, Selectable, Fixed, 5.35V, - |
| Voltage/Current - Output 2 | Fixed, Selectable, Fixed, 3.3V/5V, 375mA |
| Voltage/Current - Output 3 | Fixed, Selectable, Fixed, 5V, 150mA |
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