DIOO Microcircuits DIO70040 Power Distribution Switch ICs
DIOO Microcircuits DIO70040 Power Distribution Switch ICs are designed for applications requiring precision current limiting or heavy capacitive loads and short circuits. These power switch ICs operate within the 2.7V to 5.5V input voltage range and offer 57mΩ on-resistance. The DIO70040 power switch ICs come with five different current limit versions, including 500mA/1A/1.5A/2A/2.5A. This device limits the output current under a safe level by using a constant current mode when the output load exceeds the current limit threshold. The power switch rising and falling times are controlled to minimize current surges when turning on/off. The DIO70040 power switch is available in the SOT23-5, SOIC-8, EP-MSOP8, and MSOP-8 packages. These power distribution switch ICs are used in USB ports/hubs, digital TVs, set-top boxes, and VOIP phones.Features
- 2.7V to 5.5V input voltage range
- 57mΩ on-resistance (typical)
- Five different current limit versions
- Undervoltage lockout
- Overcurrent protection, short circuit protection, and over-temperature protection
- Fault time 8ms (typical) with blanking
- Reverse blocking (no body diode)
- No reverse current when power ON or power OFF
- Active high or active low polarity
- Quick output discharge - available EN high
- Available in the SOT23-5, SOIC-8, EP-MSOP8, and MSOP-8 packages
Applications
- USB ports/hubs
- Digital TV
- Set-top boxes
- VOIP phones
Simplified Schematic
Block Diagram
Publicado: 2025-02-26
| Actualizado: 2025-02-28
