Products Overview
APM81803 Synchronous Buck Regulator Module
Allegro MicroSystems
APM81803: 40V, 3A, Synchronous Buck Regulator Module with Low EMI and 6μA Quiescent Current
The ALT80800 is a compact, high-efficiency, low EMI LED Driver for automotive lighting applications. It is a synchronous buck switching regulator that provides constant-current output to drive high-power LEDs. It integrates both high-side and low-side N-channel DMOS switches for DC-to-DC step-down conversion. Output current is user-selectable by an external current sense resistor, and output voltage is automatically adjusted to drive various numbers of LEDs in a single string.
| Part Number | Type | Output Current | Topology | Mounting Style | Operating Frequency | Dimming | Applications | Maximum Frequency | Operating Temperature | Voltage - Supply | Package Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
| APM81803 | DC DC Regulator | 2A | Step-Down (Buck) | Surface Mount | 500kHz | Analog, PWM | Lighting | - | -40 °C ~ 125 °C(TA) | 4.5V ~ 55V | 16-Pin eTSSOP (suffix LP) |
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Datasheet Download on Jan, 2023
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