MPQ4573 is a fully integrated, fixed frequency, high efficiency synchronous step-down converter. It can achieve up to 2.5A of continuous output current with peak current control for excellent transient response. The wide 4.5V to 60V input voltage range accommodates a variety of step-down applications in an automotive input environment. The MPQ4573's integrated internal high-side and low-side power MOSFETs (HS-FET and LSFET, respectively) provide high efficiency without the need for an external schottky diode. Advanced asynchronous modulation mode achieves high efficiency under light-load conditions by scaling down frequency to reduce switching and gate driver losses. With internal compensation, it offers a compact solution that requires a minimal number of readily available, standard external components. It is available in a QFN-12 (2.5x3mm) package. Applications includes automotive infotainment systems, automotive lamps and LEDs, automotive motor control, industrial power systems.
- High efficiency, synchronous mode control
- 250mohm/45mohm internal power MOSFETs, up to 2.2MHz configurable frequency
- 180° out-of-phase SYNCO clock, 40µA quiescent current (IQ)
- Selectable advanced asynchronous modulation or forced continuous conduction mode during light-load
- 0.45ms internal soft start (SS), remote enable (EN) control
- Power good (PG) indicator, low dropout (LDO) mode
- Overcurrent protection (OCP), short circuit protection (SCP) with hicc-up mode
- VIN undervoltage lockout (UVLO), thermal shutdown
- Device's 2µA shutdown current makes it ideal for battery-powered applications
Footnotes MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.
Other details
| Brand |
MONOLITHIC POWER SYSTEMS (MPS) |
| Part Number |
MPQ4573GQBE-P |
| Quantity |
Each (Supplied on Cut Tape) |
| Technical Data Sheet EN |
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