Monolithic Power Systems (MPS) MP8860 Integrated Buck-Boost Converter
Monolithic Power Systems MP8860 Integrated Buck-Boost Converter is capable of regulating the output voltage across a 2.8V to 22V wide input voltage range with high efficiency. This converter provides fast load transient response and smooth buck-boost mode transient using Constant-on-Time (COT) control in buck mode and constant-off-time control in boost mode. The MP8860 buck-boost converter offers full protection features that include Over-Current Protection (OCP), Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), programmable soft-start, and thermal shutdown.
The MP8860 integrated buck-boost converter exhibits 1A output current, 500kHz switching frequency, and comes in a QFN-16 (3mmx3mm)
package. Typical applications include power supplies for motors, personal medical products, industrial systems, buck-boost bus supplies, and DSLR cameras.
Features
- Synchronous 4-switch integrated buck-boost converter
- Wide 2.8V to 22V operating input voltage range
- 500kHz switching frequency
- I²C interface with ALT Pin
- Four programmable I²C addresses
- I²C programmable line drop compensation, PFM/PWM mode, soft start, and OCP, etc
- 1V to 20.47V output voltage range (5V default) with 10mV resolution through I²C
- 1A output current or 4A input current
- Four Low RDS(ON) internal buck power MOSFETs
- Adjustable accurate cc output current limit with internal sensing MOSFET via I²C
- Built-in protections:
- Output Over-Voltage Protection (OVP) hiccup
- Output Short-Circuit Protection (SCP) with hiccup mode
- Under-Voltage Protection (UVP)
- Over-Temperature warning and shutdown
- One-Time Programmable (OTP) non-volatile memory
- EN shutdown discharge programmable
- Available in a QFN-16 (3mmx3mm) package
Applications
- Buck-boost bus supplies
- Industrial systems
- Power supplies for motors
- Personal medical products
- DSLR cameras
Publié le: 2020-03-24
| Mis à jour le: 2022-03-10