MPQ4425B is a high-frequency, synchronous, rectified, step-down, switch-mode white LED driver with built-in power MOSFETs. It offers a compact solution to achieve a 1.5A of continuous output current with excellent load and line regulation over a wide input supply range. Synchronous mode operation ensures high efficiency, while current mode operation provides fast transient responses and eases loop stabilization. Additional features include overcurrent protection (OCP) with valley current detection and thermal shutdown (TSD). This device requires a minimal number of readily available, external components. Typically used in automotive LED lighting applications. Available in TSOT23-8 package.
- Wide 4V to 36V operating input range
- Automotive AEC-Q100 Grade 1 qualified
- 85mohm/50mohm low RDS(ON) internal power MOSFETs
- High efficiency synchronous mode operation
- Default 400KHz switching frequency
- PWM dimming (min 100Hz dimming frequency)
- Forced CCM mode, 0.2V reference voltage, internal soft start
- Fault indication for LED short, open and thermal shutdown
- CISPR25 Class 5 compliant
Footnotes MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size. Warnings Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Product details
| Device Topology |
Synchronous Buck (Step Down) |
| Input Voltage Min |
4V |
| Input Voltage Max |
36V |
| Output Voltage Max |
- |
| Output Current Max |
1.5A |
| Switching Frequency |
400kHz |
| No. of Outputs |
1Outputs |
| IC Mounting |
SMD |
| Driver Case Style |
TSOT-23 |
| No. of Pins |
8Pins |
| Operating Temperature Min |
-40°C |
| Operating Temperature Max |
125°C |
| Product Range |
- |
| Automotive Qualification Standard |
AEC-Q100 |
| MSL |
MSL 1 - Unlimited |
Other details
| Brand |
MONOLITHIC POWER SYSTEMS (MPS) |
| Part Number |
MPQ4425BGJ-AEC1-P |
| Quantity |
Each (Supplied on Cut Tape) |
| Technical Data Sheet EN |
 |
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