The MP8770C from Monolithic Power Systems is a fully integrated, high-frequency, synchronous rectified step-down switch-mode converter with internal power MOSFETs. The device offers a very compact solution to achieve 8 A of continuous output current with excellent load and line regulation over a wide input range. It uses synchronous mode operation for higher efficiency over the output current load range. Constant on-time (COT) control operation provides a very fast transient response, easy loop design, and very tight output regulation. Full protection features include short-circuit protection (SCP), overcurrent protection (OCP), undervoltage protection (UVP), and thermal shutdown. The MP8770C requires a minimal number of readily available, standard external components and is available in a space-saving QFN-16 (3 mm x 3 mm) package.
Features
- Operating input range: wide 3 V to 17 V
- Output current: 8 A
- 22 mΩ/10 mΩ low RDS(ON) internal power MOSFETs
- Quiescent current: 100 μA
- Output adjustable from 0.6 V
- High-efficiency synchronous mode operation
- Pre-biased start-up
- Fixed 700 kHz switching frequency
- Forced PWM operation
- External programmable soft-start time
- EN and power good for power sequencing
- OCP and hiccup mode
- Thermal shutdown
- Available in a QFN-16 (3 mm x 3 mm) package
Applications
- Security cameras
- Portable devices, XDSL devices
- Digital set-top boxes
- Flat-panel televisions and monitors
- General purpose
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The MP8770C from Monolithic Power Systems is a fully integrated, high-frequency, synchronous rectified step-down switch-mode converter with internal power MOSFETs. The device offers a very compact solution to achieve 8 A of continuous output current with excellent load and line regulation over a wide input range. It uses synchronous mode operation for higher efficiency over the output current load range. Constant on-time (COT) control operation provides a very fast transient response, easy loop design, and very tight output regulation. Full protection features include short-circuit protection (SCP), overcurrent protection (OCP), undervoltage protection (UVP), and thermal shutdown. The MP8770C requires a minimal number of readily available, standard external components and is available in a space-saving QFN-16 (3 mm x 3 mm) package.
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