Monolithic Power Systems (MPS) MP173A 700V Non-Isolated Offline Regulators
Monolithic Power Systems (MPS) MP173A 700V Non-Isolated Offline Regulators are primary-side regulators that provide accurate constant voltage (CV) regulation without an optocoupler. The devices support buck, boost, buck-boost, and flyback topologies. The integrated 700V MOSFET simplifies the structure and reduces cost. This feature optimizes the regulators for offline, low-power applications, such as home appliances and standby power. These green-mode operation regulators provide excellent efficiency at light loads and improve overall efficiency. This is because both the peak current and switching frequency lower as the load decreases. Protections include thermal shutdown (TSD), VCC undervoltage lockout (UVLO), overload (OLP), short circuit (SCP), and open-loop detection. MPS MP173A 700V Non-Isolated Offline Regulators are available in TSOT23-5 and SOIC-8 packages.
Features
- Primary-side CV control
- Supports buck, buck-boost, boost, and flyback topologies
- Integrated 700V MOSFET and current source
- <30mW no-load power consumption
- Up to 4W output power
- Maximum DCM output current below 180mA
- Maximum CCM output current below 280mA
- Low VCC operating current
- Frequency foldback
- Limited maximum frequency
- Peak current compression
- Internally biased VCC
- TSD, UVLO, OLP, SCP, and open-loop detection
- TSOT23-5 and SOIC-8 packages
Applications
- Home appliances
- White goods
- Consumer electronics
- Industrial controls
- Standby power
Typical Application
Additional Resources
Development Tools
Monolithic Power Systems (MPS) EV173A-S-00A Evaluation Board
Designed for MP173A primary-side constant voltage regulator with accurate CV regulation.
Publié le: 2020-05-29
| Mis à jour le: 2024-12-30