Order- MPQ4340-AEC1
MPQ4340-AEC1
36V, 4A, Ultra-Low Quiescent Current, Synchronous Step-Down Converter with Multi-Phase Capability, AEC-Q100 Qualified
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Description
The MPQ4340 is a configurable-frequency (350kHz to 2.5MHz), synchronous step-down switching converter with an integrated, internal high-side MOSFET (HS-FET) and low-side MOSFET (LS-FET). It provides up to 4A of highly efficient output current (IOUT) with fixed-frequency, zero-delay pulse-width modulation (PWM) (ZDP) control for near optimal transient response.
The wide 3.3V to 36V input voltage (VIN) range with 42V load dump support accommodates a variety of step-down applications in automotive input environments. A 1μA shutdown current (ISD) allows the device to be used in battery-powered applications.
High power conversion efficiency across a wide load range is achieved by scaling down the switching frequency (fSW) under light-load conditions to reduce switching and gate driver losses. An open-drain power good (PG) signal indicates whether the output voltage (VOUT) is within 94% to 106% of its nominal voltage range. Thermal shutdown provides reliable, fault-tolerant operation. A high duty cycle and low-dropout (LDO) mode are provided for automotive cold-crank conditions.
The MPQ4340 is available in a QFN-17 (3mmx4mm) package, and it is AEC-Q100 qualified.
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Features & Benefits
- Designed for Automotive Applications
- 42V Load Dump Tolerance
- Supports Up to 3.1V Cold Crank
- Low-Dropout (LDO) Mode
- Up to 4A of Continuous Output Current (IOUT)
- Continuous Operation Up to 36V
- Zero-Delay PWM (ZDP) Control
- Multi-Phase Capability
- 20ns Minimum On Time
- -40°C to +150°C Operating Junction Temperature (TJ) Range
- Available in AEC-Q100 Grade 1
- Increases Battery Life:
- 1μA Low Shutdown Current (ISD)
- 3μA Sleep Mode Quiescent Current (IQ)
- Advanced Asynchronous Modulation (AAM) Mode Increases Efficiency under Light Loads
- High Performance for Improved Thermals:
- Internal 60mΩ High-Side MOSFET (HS-FET) and 35mΩ Low-Side MOSFET (LS-FET)
- Optimized for EMC/EMI:
- 350kHz to 2.5MHz Configurable Switching Frequency (fSW)
- Symmetric VIN Pinout
- Frequency Spread Spectrum (FSS) Modulation
- CISPR25 Class 5 Compliant
- MeshConnectTM Flip-Chip Package
- Additional Features:
- Fixed Output Options: 1V, 1.1V, 1.8V, 2.5V, 3V, 3.3V, 3.8V, or 5V
- Synchronizable to External Clock
- Synchronized Clock Output
- Power Good (PG) Output
- External Soft Start (SS)
- Over-Current Protection (OCP) with Hiccup Mode
- Available in a QFN-17 (3mmx4mm) Package with Wettable Flanks
Active Part Numbers:
MPQ4340GLE-33-AEC1-Z MPQ4340GLE-33-AEC1-P MPQ4340GLE-5-AEC1-Z MPQ4340GLE-5-AEC1-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MPQ4340-AEC1 Resources
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ARTICLE
OPTIMIZING AUTOMOTIVE APPLICATIONS WITH ZERO-DELAY PWM CONTROL (ZDP)ARTICLEThe increasingly high power consumption for rails in advanced driver-assistance systems (ADAS) and digital cockpit applications calls for an improved control scheme from traditional control methods (e.g. peak current mode control), with a need for excellent load transient performance and low on-time capabilities. While constant-on-time (COT) control can be utilized as a control scheme, its varied ...
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APPLICATION
TRACTION INVERTER SYSTEMAPPLICATIONAn engine roaring is becoming a sound of the past, as the adoption of electric vehicles (EVs) continues to grow at an exponential rate. Soon the only sound will be the whirring an EV motor as the traction inverter delivers power from the battery. Traction inverters are instrumental in converting energy from the high-voltage battery (400V/800V) into three-phase AC energy to drive the vehicle’s moto...
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APPLICATION
ONBOARD CHARGING MODULE (OBCM)APPLICATIONElectric vehicles (EVs) are becoming more present every day, with the adoption of EVs growing at an exponential rate. Onboard charging (OBC) is a very important part of EVs, since it determines the maximum possible charge rate while an AC charger is connected to the vehicle. The maximum charge capability for a fully electric vehicle is typically between 6.6kW and 22kW, and for a plug-in hybrid veh...
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APPLICATION
DC FAST CHARGING STATIONAPPLICATIONDC fast charging stations are becoming more common with the increased adoption of electric vehicles. Charging stations are a vital part of the infrastructure along major highways and populated suburbs, ensuring that electric vehicles have a place to charge during long-distance travel and day-to-day driving. These systems are often comprised of multiple 25kW to 75kW modules to create fast charging ...
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