Monolithic Power Systems (MPS) MP28167-N Integrated Buck-Boost Converters
Monolithic Power Systems (MPS) MP28167-N Integrated Buck-Boost Converters are synchronous devices with four MOSFETs capable of regulating the output voltage (VOUT) with high efficiency across a wide 2.8V to 22V input voltage (VIN) range. The integrated VOUT scaling and adjustable output constant current (CC) limit functions meet USB power delivery (PD) requirements. MP28167-N uses constant-on-time (COT) control in buck mode and constant-off-time control in boost mode, delivering fast load transient responses and smooth buck-boost mode transients. The Monolithic Power Systems (MPS) MP28167-N converters provide automatic pulse-frequency modulation (PFM)/pulse-width modulation (PWM) mode and forced PWM mode. The devices also provide a configurable output CC limit, which supports flexible design for different applications.
Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), configurable soft start (SS), and thermal shutdown. The MP28167-N converters are available in a QFN-16 (3mm x 3mm) package.
Features
- Configurable output voltage (VOUT) via the Feedback (FB) pin
- Wide 2.8V to 22V operating input voltage (VIN) range
- 0.08V to 1.637V reference voltage (VREF) range with 0.8mV resolution via the digital interface (default 1V VREF)
- Up to 3A output current (IOUT) or 4A input current (IIN)
- Four low on-resistance [RDS(ON)], internal buck power MOSFETs
- Adjustable accurate output constant current (CC) limit with internal sensing MOSFET via the digital interface
- 500kHz, 750kHz, 1MHz, or 1.25MHz selectable switching frequency (fSW) options
- Output over-voltage protection (OVP) with hiccup mode
- Output short-circuit protection (SCP) with hiccup mode
- Over-temperature warning and shutdown
- Power Good (PG) indication
- One-time programmable non-volatile memory
- Configurable via the digital interface: line drop compensation, PFM/PWM mode, Soft Start (SS), OCP, and OVP
- Configurable enable (EN) shutdown discharge
- Optimized performance with an MPS inductor
- Available in a QFN-16 (3mm x 3mm) package
Applications
- Solid-State Drives (SSDs)
- USB Power Delivery (PD) sourcing ports
- Buck-boost bus supplies
- Networking and servers
Typical Application
Block Diagram
Related Development Tools
Monolithic Power Systems (MPS) EVL28167-N-Q-00A Evaluation Board
Demonstrates the capabilities of the MP28167-N high-efficiency, synchronous buck-boost converters.
Publicado: 2024-10-16
| Actualizado: 2024-11-22