Monolithic Power Systems (MPS) MP28600 Synchronous Boost Converters
Monolithic Power Systems (MPS) MP28600 Synchronous Boost Converters are ultra-low quiescent current devices designed for battery-powered applications that require high efficiency and extended battery life. These converters operate with input voltages from 0.1V to 5.25V, start up from as low as 0.7V, and provide adjustable output voltages from 2.5V to 5.25V. The MPS MP28600 features pulse-skip mode, automatic switching between boost and down modes, and true output disconnection during shutdown. With only 600nA quiescent current, up to 88% efficiency at light loads, and a compact SOT563 package, these converters are ideal for wearable devices, portable products, low-power wireless applications, memory LCD bias supplies, and battery or supercapacitor charging systems.
Features
- 0.7V to 5.25V start-up voltage range
- 0.1V to 5.25V operating input voltage range
- 2.5V to 5.25V output voltage range
- Pulse-Skip Mode (PSM)
- 600nA quiescent current
- Up to 88% efficiency at a 10µA load with fixed-VOUT versions
- 1A fixed switching current limit
- Automatic switching between Boost Mode and Down Mode
- True disconnection during shutdown
- 150°C thermal shutdown protection
- Available in an SOT563 (1.6mm x 1.6mm) package
- Optimized performance with MPS MPL-AT inductor series
Applications
- Memory LCD bias
- Wearable applications
- Portable products
- Low-power wireless applications
- Battery and supercapacitor charging
Specifications
- 0.7V to 5.25V operating start-up input voltage range
- 0.1V to 5.25V operating input voltage range
- 2.5V to 5.25V operating output voltage range
- 1.27W maximum continuous power dissipation
- Power supply
- 0.6V (maximum) minimum start-up input voltage
- 0.8μA maximum shutdown current
- 0.4μA to 2μA maximum quiescent current range
- Enable (EN) control
- 0.6V minimum logic high
- 0.05V maximum logic low
- 100nA maximum pin sink/source current
- 300μs typical turn-on delay
- 4μs typical turn-off delay
- Thermal protection
- 150°C typical shutdown
- 25°C typical shutdown hysteresis
- Power switch
- 0.25Ω typical high-side MOSFET (HS-FET) on-resistance
- 0.21Ω typical low-side MOSFET (LS-FET) on-resistance
- 5Ω typical starting FET on-resistance
- 0.9A to 1.2A inductor peak current limit range, 1A typical
- 50mA typical HS switching zero current detection (ZCD) current
- 0.8MHz (typical) maximum switching frequency
- 80ns (typical) minimum on time
- 200mV to 300mV mode change threshold range
- -40°C to +125°C operating junction temperature range
- +150°C maximum junction temperature
- +260°C maximum lead temperature
Typical Application
Functional Block Diagram
Related Inductors
Monolithic Power Systems (MPS) MPL Surface-Mount Inductors
Designed for optimal performance with MPS ICs, provides an easy, complete power solution.