IR3651SPBF

Series: -
PWM Type: Voltage Mode
Buck: Yes
Inverting: No
Doubler: No
Divider: No
Cuk: No
Isolated: No
Number of Outputs: 1
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Packaging: Tube
Boost: No
Flyback: No
Frequency - Max: 460kHz
Duty Cycle: 80%
Operating Temperature: 0°C ~ 125°C
Manufacturer: International Rectifier
Voltage - Supply: 4.5 V ~ 13.2 V


Features:

• High Voltage Operating up to 75V
• Programmable Switching Frequency up to 400kHz
• 1A Output Drive Capability
• Precision Reference Voltage (1.25V)
• Programmable Soft-Start
• Programmable Over Current Protection
• Hiccup Current Limit Using MOSFET R_DS(on) sensing
• External Frequency Synchronization
• 14-pin SOIC Package




Application

• 48V non-isolated DC to DC Converter
• Embedded Telecom Systems
• Networking and Computing Voltage Regulator
• Distributed Point of Load Power Architectures
• General high voltage DC/DC Converters


Specifications

(Voltages referenced to GND)
• Vcc, DRVcc Supply Voltage .................. -0.3V to 20V
• Vs Supply Voltage ............................ -0.3V to 150V
• Vb Supply Voltage ........................ -0.3V to Vs+20V
• OCset ............................................................ 10mA
• Storage Temperature Range ........... -65 To 150
• Operating Junction Temperature Range ........ -40 To 150
• ESD Classification .......................... JEDEC, JESD22-A114 (1K)
• Moisture Sensitivity Level ................. JEDEC Level 3 @ 260
CAUTION: Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not implied.

Description

The IR3651SPbF is a high voltage PWM controller designed for high performance synchronous Buck DC/DC applications. The IR3651 drives a pair of external N-MOSFETs using a programmable switching frequency up to 400kHz allows flexibility to tune the operation of the IC to meet system level requirements, and synchronization allows the simplification of system level filter design. The output voltage of the IR3651SPbF can be precisely regulated using the internal 1.25V reference voltage for low voltage applications. Protection such as under voltage lockout and hiccup current limit are provided to give required system level security in the event of fault conditions.

Parameters:

Technical/Catalog Information	IR3651SPBF
Vendor	International Rectifier
Category	Integrated Circuits (ICs)
PWM Type	Voltage Mode
Number of Outputs	1
Package / Case	14-SOIC
Packaging	Tube
Duty Cycle	80%
Voltage - Supply	4.5 V ~ 150 V
Frequency-Max	460kHz
Buck	Yes
Boost	No
Flyback	No
Inverting	No
Doubler	No
Divider	No
Cuk	No
Isolated	No
Drawing Number	*
Operating Temperature	0°C ~ 125°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	IR3651SPBF IR3651SPBF