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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 there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet 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 there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet 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 |
|---|