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MIC2090-2YM5-TR

50mA P-channel high-side power switch, 1.8-5.5V, latch-off current limit, SOT-23-5

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Pieza del fabricante：

MIC2090-2YM5-TR

Paquete：

SOT-23-5 (2.9 x 1.6 x 1.1 mm)

Marca：
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Descripción

Productos

The MIC2090-2YM5-TR is a 50mA current-limiting high-side power distribution switch manufactured by Microchip Technology, featuring latch-off overcurrent protection in a compact SOT-23-5 package. Part of the MIC2090/2091 family, this P-channel MOSFET switch is optimized for general-purpose low-power distribution in circuits requiring over-current limiting and circuit protection, with an input voltage range of 1.8V to 5.5V and a typical RDS(ON) of 700mOhm.

Especificaciones

Switch Type P-Channel High-Side MOSFET
Current Limit 50mA (min continuous)
Input Voltage Range 1.8V to 5.5V
RDS(ON) Typical 700mOhm at 3.3V
Current Limit Recovery Latch-Off (-2 version)
Enable Logic Active High
Fault Flag Yes (Open-Drain)
Temperatura de funcionamiento -40°C to +125°C (TJ)
Paquete SOT-23-5 (2.9 x 1.6 x 1.1 mm)

Características

  • 50mA minimum continuous current with latch-off current limit recovery
  • Reverse current blocking (OGI) for output-to-input protection
  • 20ns super-fast reaction time to hard short at output
  • Thermal shutdown and undervoltage lockout (UVLO)
  • Open-drain fault status flag with 10ms delay to eliminate false assertions

Aplicaciones

  • USB port power switching and protection
  • Portable consumer electronics and battery-powered devices
  • Camera and camcorder motor protection
  • Thermal printer head protection
  • Low-current load switching in SD card and MP3 player circuits

The MIC2090-2YM5-TR from Microchip Technology is a 50mA current-limiting high-side power distribution switch with latch-off overcurrent protection. Built around a P-channel MOSFET with a typical RDS(ON) of 700mOhm at 3.3V, the device operates from a 1.8V to 5.5V supply and features reverse current blocking, thermal shutdown, undervoltage lockout, and an open-drain fault flag. The latch-off version (-2 suffix) ensures the output remains off after an overcurrent event until the enable pin is toggled, providing robust protection for sensitive downstream circuits. The SOT-23-5 package minimizes board space while the -40°C to +125°C junction temperature range supports demanding environments.

The MIC2090-2YM5-TR integrates a P-channel MOSFET as the switching element between VIN and VOUT, controlled by an active-high enable (EN) pin. When enabled, the MOSFET conducts and delivers power to the load. The current-limiting circuitry monitors output current; when it exceeds the 50mA threshold, the latch-off mechanism turns off the MOSFET and asserts the FAULT flag low. The device remains latched off until EN is toggled low then high. Reverse current blocking prevents current flow from VOUT to VIN when the switch is off. UVLO ensures the switch remains off when VIN is below 1.75V, while thermal shutdown protects against excessive junction temperature.

Pin Nombre Tipo Función
1 VIN Potencia Supply input: +1.8V to +5.5V
2 GND Suelo Device ground reference
3 ES Entrada Enable (Active High); must not float
4 FAULT/ Salida Open-drain fault indicator; active low during overcurrent, thermal, or UVLO
5 VOUT Salida Switched output to load
  • USB low-power hub port switching and overcurrent protection
  • Battery-powered portable device power rail gating
  • SD card and MP3 player current-limited power distribution
  • Camera module motor driver protection circuits
  • Thermal printer head current limiting and fault indication
Fabricante Número de pieza Paquete Notas
Microchip MIC2090-1YM5-TR SOT-23-5 50mA, auto-retry version
Microchip MIC2091-2YM5-TR SOT-23-5 100mA, latch-off version
TI TPS22942DBVR SOT-23-5 200mA load switch with current limit
onsemi NCP380LSNA05T1G SOT-23-5 500mA adjustable current limit
Torex XC8110AA50MR-G SOT-25 500mA load switch with current limiter
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