MIC2505-1YM

Product Summary

The MIC2505-1YM is a single integrated high-side power switch that consists of TTL compatible control/enable inputs, a charge pump, and protected N-channel MOSFETs. The MIC2505-1YM can be used instead of separate high-side drivers and MOSFETs in many low-voltage applications. The MIC2505-1YM controls voltages ranging from 2.7V to 7.5V. It can deliver at least 2A continuous current. A slow turn-on feature prevents high inrush current when switching capacitive loads. The internal control circuitry is powered from the same 2.7V to 7.5V. Within its input range, outputs can be forced higher than the input voltage when disabled. Multipurpose open-drain fault flag outputs indicate overcurrent limiting, thermal shutdown, or undervoltage lockout. Overcurrent limiting is internally fixed and requires no external components. Open-load detection is active when the switch is off. When off, a normal load pulls the output pin low. If the load is open, an optional, external, high-value resistor pulls the output pin high, triggering the fault flag. The MIC2505-1YM is tailored to Universal Serial Bus (USB) applications and do not include open-load detection. Thermal shutdown turns off the output if the die temperature exceeds approximately 135℃. If enabled, the MIC2505-1YM automatically restarts when the temperature falls 10℃. Undervoltage lockout (UVLO) shuts off the output if the supply drops below 2.3V typical and reenables the output when the supply exceeds 2.5V typical.

Parametrics

MIC2505-1YM absolute maximum ratings: (1)Supply Voltage (VIN): 8.0V; (2)Fault Flag Voltage (VFLG): 7.5V; (3)Fault Flag Current (IFLG): 50mA; (4)Output Voltage (VOUT): 7.5V; (5)Output Current (IOUT): Internally Limited; (6)Gate Voltage (VGATE): VIN + 15V; (7)Control Input (VCTL): –0.3V to 15V; (8)Storage Temperature (TA): –65℃ to +150℃; (9)Lead Temperature (Soldering 5 sec.): 260℃.

Features

MIC2505-1YM features: (1)Low MOSFET on resistance to 2.7V; (2)30mΩ typical at 5V; (3)35mΩ typical at 3.3V; (4)2.7V to 7.5V input; (5)110μA typical on-state supply current; (6)1μA typical off-state supply current; (7)Output can be forced higher than input (off-state); (8)Current limit; (9)Thermal shutdown; (10)2.5V undervoltage lockout (UVLO); (11)Open-drain fault flag; (12)5ms (slow) turn-on and fast turnoff; (13)Logic-level control/enable input.

Diagrams