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IR3891MTRPBF
DC/DC POL Converter, Adjustable, Buck, 1.5 MHz, 1 V to 21 V in, 0.5 V to 18.06 V/4 A out, PQFN-31
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ManufacturerINFINEON
Manufacturer Part NoIR3891MTRPBF
Order Code2577252
Also Known AsSP001524662
Technical Datasheet
No Longer Manufactured
Product Information
ManufacturerINFINEON
Manufacturer Part NoIR3891MTRPBF
Order Code2577252
Also Known AsSP001524662
Technical Datasheet
Output TypeAdjustable
No. of Outputs2Outputs
TopologySynchronous Buck (Step Down)
Input Voltage Min1V
Input Voltage Max21V
Output Current4A
Max Output Current4A
IC Case / PackageQFN
No. of Pins31Pins
IC MountingSurface Mount
Output Voltage - Nom-
Output Voltage Min500mV
Output Voltage Max18.06V
Switching Frequency Typ1.5MHz
Efficiency-
Operating Temperature Min-40°C
Operating Temperature Max125°C
Product Range-
Qualification-
DC / DC Converter IC CasePQFN
Switching Frequency1.5MHz
Product Overview
The IR3891 SupIRBuck® is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard PWM controller and MOSFETs make IR3891 a space-efficient solution, providing accurate power delivery for low output voltage. IR3891 is a versatile regulator which offers programmability of switching frequency and a fixed current limit while operating in wide input and output voltage range. The switching frequency is programmable from 300kHz to 1.5MHz for an optimum solution.
- Single 5V to 21V application
- Wide Input Voltage Range from 1V to 21V with external Vcc
- Output Voltage Range: 0.5V to 0.86*PVin
- Dual output, 4A/Phase
- Enhanced Line/Load Regulation with Feed- Forward
- Programmable Switching Frequency up to 1.5MHz
- Internal Digital Soft-Start
- Enable input with Voltage Monitoring Capability
- Thermally compensated current limit and Hiccup Mode Over Current Protection
- External synchronization with Smooth Clocking
- Precision Reference Voltage (0.5V +/-1%)
- Seq pin for Sequencing Applications
- Integrated MOSFETs, drivers and Bootstrap diode
- Thermal Shut Down
- Open Feedback Line Protection
- Over Voltage Protection
Applications
Computer Hardware, Power Supplies, Telecommunications
Technical Specifications
Output Type
Adjustable
Topology
Synchronous Buck (Step Down)
Input Voltage Max
21V
Max Output Current
4A
No. of Pins
31Pins
Output Voltage - Nom
-
Output Voltage Max
18.06V
Efficiency
-
Operating Temperature Max
125°C
Qualification
-
Switching Frequency
1.5MHz
No. of Outputs
2Outputs
Input Voltage Min
1V
Output Current
4A
IC Case / Package
QFN
IC Mounting
Surface Mount
Output Voltage Min
500mV
Switching Frequency Typ
1.5MHz
Operating Temperature Min
-40°C
Product Range
-
DC / DC Converter IC Case
PQFN
Technical Docs (2)
Associated Products
2 Products Found
Legislation and Environmental
Country of Origin:
Country in which last significant manufacturing process was carried outCountry of Origin:Malaysia
Country in which last significant manufacturing process was carried out
Country in which last significant manufacturing process was carried outCountry of Origin:Malaysia
Country in which last significant manufacturing process was carried out
Tariff No:85423990
US ECCN:EAR99
EU ECCN:NLR
RoHS Compliant:Yes
RoHS
RoHS Phthalates Compliant:Yes
RoHS
Download Product Compliance Certificate
Product Compliance Certificate
Weight (kg):.5
Product traceability