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Overview
| Topology | Buck Converter |
| Input voltage | 4-35 V |
| Switching frequency | 300-2400 kHz |
| Output 1 | 5 V / 2 A |
Description
It is a wide input voltage Buck converter controller, capable to delivering 2A from 4-35VSwitching Freq. is 300kHz and 2Mhz
Features
Automotive AEC-Q100 qualifiedWithstands surge input to 40 VIN for load dumpOperates down to 3.4 VIN (typ), 3.6 VIN (max) for idle stopUtilizes pulse-frequency modulation (PFM) for low-IQ mode10 μA Sleep mode (automatic PWM / Low-IQ PFM mode selection)Fixed output voltage options: 3.3 or 5 V with ±1% accuracyDelivers up to 2 A of output currentIntegrated 110 mΩ high-side MOSFETAdjustable switching frequency from 300 kHz to 2.4 MHzEMI reduction features: Frequency ditheringControlled switching node
External synchronization capabilityMaximum duty cycle for low dropoutActive low NPOR output with 7.5 ms delayPre-bias startup capable: VOUT increases monotonically, will not cause a resetExternal compensation for maximum flexibilityStable with ceramic or electrolytic output capacitorsInternally fixed soft-start time of 5 msPulse-by-pulse current limit, hiccup mode short-circuit, and thermal protectionsPin open/short and component fault tolerant–40°C to 150°C operating junction temperature rangeThermally enhanced DFN-10 surface-mount package
Typical applications
- Navigation
- Instrument clusters
- Industrial
- HVAC
- Home audio
- Network and telecom
- Audio systems
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Mount | IR,40K (A) | Size | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74437346047 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-LHMI SMT Power Inductor | 4.7 | 5.35 | 7.5 | 15.5 | 40 | 22 | SMT | 3.8 | 7030 | – | ||
 | 744770122 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD SMT Power Inductor | 22 | 5.8 | 5 | 6.5 | 35 | 12 | SMT | 4.6 | 1280 | Standard |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74437346047 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | |
| 744770122 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Mount | IR,40K (A) | Size | Version | Samples |
|---|