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The MPQ2166 is an internally compensated, dual, PWM, synchronous, step-down regulator that operates from a 2.7V to 6V input and generates an output voltage as low as 0.6V. The MPQ2166 can be configured as a 2A/2A or 3A/1A output current regulator and is ideal for powering portable equipment that runs on a single-cell lithium-ion (Li+) battery due to a low 60µA quiescent current. 
The MPQ2166 integrates dual, 55m?, high-side switches and 20m? synchronous rectifiers for high efficiency without an external Schottky diode. The MPQ2166 has peak-current-mode control and internal compensation and is capable of low dropout configurations. Both channels can operate at 100% duty cycle.
Full protection features include cycle-by-cycle current limit and thermal shutdown. 
The MPQ2166 requires a minimum number of readily available, standard, external components and is available in QFN-18 (2mmx3mm) and QFN-18 (2.5mmx3.5mm) packages.

FEATURES

 

2.7V to 6V Operating Input Range

2A/2A or 3A/1A Continuous Current

55m?/20m? RDS(ON)

Programmed Frequency up to 3MHz

External Sync Clock Up to 3MHz

180o Phase Shifted Operation

PG Indicators

External SS and Track

Adjustable Advanced Asynchronous Mode (AAM) or Forced Continuous Conduction Mode (CCM)

Peak Efficiency >90%

Output Adjustable from 0.6V to VIN

100% Duty Cycle Operation

60µA Quiescent Current

Cycle-by-Cycle Over-Current Protection (OCP)

Short-Circuit Protection (SCP) with Hiccup Mode and Valley Current Detection

Thermal Shutdown

Available in QFN-18 (2mmx3mm) and QFN-18 (2.5mmx3.5mm) Packages

Available in AEC-Q100 Grade-1

 

APPLICATIONS

 

• Small/Handheld Devices
• DVD Drivers
• Smartphones and Feature Phones
• Battery-Powered Devices
• Portable Instruments