IR3447MTRPBF - Infineon

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

IR3447MTRPBF
Manufacturer

Infineon
ChipWorker Part#

CW42292040
Category

DC to DC Converter
Package

PQFN-33
Description

Conv DC-DC 5V to 21V Step Down Single-Out 0.6V to 18.06V 25A 16Pin Power QFN EP T/R
Documentation

Datasheet

IR3447MTRPBF Global Supplier

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IR3447MTRPBF Specifications

Attribute	Attribute Value

Part Number	IR3447MTRPBF
Manufacturer	Infineon
ChipWorker Part#	CW42292040
Category	DC to DC Converter
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	33 Pin
Case/Package	PQFN-33
Number of Outputs	1 Output
Output Voltage	0.6V ~ 18.06V
Output Current	25 A
Number of Positions	33 Position
Switching Frequency	1.5 MHz
Input Voltage (Max)	21 V
Input Voltage (Min)	5 V
Output Voltage (Max)	18.06 V
Output Voltage (Min)	600 mV
Output Current (Max)	25 A
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	40 ℃
Supply Voltage (Min)	1.5 V
Input Voltage	21 V
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Operating Temperature	-40℃ ~ 125℃ (TJ)
Product Lifecycle Status	Unknown
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/12/17

Product Description

The IR3447MTRPBF is a SupIRBuck® easy-to-use fully-integrated and highly efficient DC/DC synchronous Buck Regulator for use with set-top box applications. The onboard PWM controller and MOSFETs make IR3447 a space-efficient solution, providing accurate power delivery for low output voltage and high current applications. IR3447 is a versatile regulator which offers programmability of switching frequency and 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. It also features important protection functions, such as overvoltage protection (OVP), pre-bias startup, hiccup current limit and thermal shutdown to give required system level security in the event of fault conditions. Dedicated output voltage sensing for power good indication and overvoltage protection which remains active even when enable is low.
Enhanced line/load regulation with feed-forward
Internal digital soft-start
Enable input with voltage monitoring capability
Remote sense amplifier with true differential voltage sensing
Thermally compensated current limit and hiccup mode overcurrent protection
Smart LDO to enhance efficiency
External synchronization with smooth clocking
Enhanced pre-bias start up
Body braking to improve transient
Integrated MOSFET drivers and bootstrap diode
Thermal shut down
Programmable power good output
0.5% Accurate reference voltage

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