The AMS2027 is a power distribution switch intended for applications where heavy capacitive loads and short circuits are likely to be encountered. It features a high-side MOSFET switch, short circuit protection, available active-high or active-low enable, logic overcurrent output error flag, etc.
The AMS2027 is a single‑power‑distribution high‑side switch designed for heavy capacitive loads and short‑circuit conditions. It features a 110 mΩ typical on‑state resistance, active‑high or active‑low enable, short‑circuit protection, and an undervoltage lock‑out that keeps the switch off at start‑up. The device includes an internal charge pump that allows operation from supply voltages as low as 3.3 V and provides controlled rise/fall times to minimize EMI.
The switch is supplied in 8‑lead SOIC and 8‑lead PDIP packages and operates over a temperature range of –40 °C to +125 °C. Electrical characteristics such as on‑state resistance, leakage current, and supply current are detailed in the datasheet, along with recommended application hints, pin functions, and thermal protection behavior.
| On‑State Resistance (RDS(on)) | Typical 95 mΩ at VGS=5.5 V |
|---|---|
| Maximum Continuous Output Current | 0.64 A |
| Operating Temperature Range | -40 °C to +125 °C |
| Input Voltage Range | 4.0 V to 5.5 V |
| Package Types | 8‑lead SOIC and 8‑lead PDIP |
The device operates with an input voltage between 4.0 V and 5.5 V.
When an over‑current condition is detected, the device limits the output current, switches to a constant‑current mode, and drives the error flag output low.
The AMS2027 is offered in an 8‑lead SOIC package and an 8‑lead PDIP package.
Typical on‑state resistance is 95 mΩ at a gate voltage of 5.5 V.