XRP6141ELMTR-F

XRP6141ELMTR-F Datasheet

XRP6141

Part	Datasheet
XRP6141ELMTR-F	XRP6141ELMTR-F (pdf)

Related Parts	Information
XRP6141EL-F	XRP6141EL-F
XRP6141ELTR-F	XRP6141ELTR-F

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XRP6141 35A Synchronous Step Down COT Controller December 2013 The XRP6141 is a synchronous step-down controller for point-of load supplies up to 35A. A wide 4.5V to 22V input voltage range allows for single supply operation from industry standard 5V, 12V and 19.6V rails. With a proprietary emulated current mode Constant On-Time COT control scheme, the XRP6141 provides extremely fast line and load transient response using ceramic output capacitors. It requires no loop compensation hence simplifying circuit implementation and reducing overall component count. The control loop also provides exceptional line regulation and maintains constant operating frequency. A selectable power saving mode, allows the user to operate in discontinuous mode DCM at light current loads thereby significantly increasing the converter efficiency. A host of protection features, including overcurrent, over-temperature, short-circuit and UVLO, help achieve safe operation under abnormal operating conditions. The XRP6141 is available in RoHS compliant, green/halogen free space-saving 16-pin 3x3 QFN package. • Networking and Communications • Fast Transient Point-of-Loads • Industrial and Medical Equipment • Embedded High Power FPGA • 35A Capable Step Down Controller − Wide Input Voltage Range o 5V to 22V Single Supply o 4.5V to 5.5V Low Vin − Integrated high Current 2A/3A Drivers − 0.6V to 18V Adjustable Output Voltage • Proprietary Constant On-Time Control − No Loop Compensation Required − Ceramic Output Cap. Stable operation − Programmable 200ns-2µs − Constant 200kHz-800kHz Frequency − Selectable CCM or CCM/DCM Operation • Programmable hiccup current limit with thermal compensation • Precision Enable and Power-Good Flag • Programmable Soft-start • Integrated Bootstrap diode • 16-pin QFN Package TYPICAL APPLICATION DIAGRAM Fig. 1 XRP6141 Application Diagram Exar Corporation 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 Fax. +1 510 668-7001 XRP6141 35A Synchronous Step Down COT Controller ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. VIN -0.3V to 28V VCC -0.3V to 6.0V BST -0.3V to 34V2 BST-SW to 6V SW, ILIM -5V to 28V1,2 -0.3V to BST+0.3V to 6V ALL other pins................................... -0.3V to VCC+0.3V Storage Temperature -65°C to 150°C Junction Temperature 150°C Power Dissipation Internally Limited Lead Temperature Soldering, 10 sec 300°C ESD Rating HBM - Human Body Model 2kV OPERATING RATINGS VIN -0.3V to 22V VCC -0.3V to 5.5V SW, ILIM -1V to 26V1 PGOOD, VCC, TON, SS, EN, GL, FB -0.3V to 5.5V Switching Frequency 200kHz-800kHz3 Junction Temperature Range ....................-40°C to 125°C Note 1 SW pin’s minimum DC range is -1V, transient is -5V for less than 50ns Note 2 No external voltage applied Note 3 Recommended ELECTRICAL SPECIFICATIONS Specifications are for Operating Junction Temperature of TJ = 25°C only limits applying over the full Operating Junction Temperature range are denoted by a Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise indicated, VIN = 12V, BST=VCC, SW=GND=PGND=0V, CGH=CGL=3.3nF. Parameter Min. Power Supply Characteristics VIN, Input Voltage Range IVIN, VIN supply current IVCC, VCC Quiescent current IVIN, VIN supply current IOFF, Shutdown current Enable and Under-Voltage Lock-Out UVLO VIH_EN, EN Pin Rising Threshold VEN_HYS, EN Pin Hysteresis VIH_EN, EN Pin Rising Threshold for DCM/CCM operation VEN_HYS, EN Pin Hysteresis VCC UVLO start threshold, rising edge VCC UVLO Hysteresis ORDERING INFORMATION Temperature Range Marking XRP6141EL-F XRP6141ELMTR-F XRP6141ELTR-F XRP6141EVB 6141 XXXX XRP6141 Evaluation Board Package 3x3mm QFN16 Packing Quantity Note 1 Tray 250/Tape & Reel Lead Free and/or Halogen Free 3k/Tape & Reel “Y” = Year “WW” = Work Week “X” = Lot Number when applicable. 2013 Exar Corporation 5/14 XRP6141 35A Synchronous Step Down COT Controller TYPICAL PERFORMANCE CHARACTERISTICS All data taken at VIN = 12V, VOUT=1.2V, f=300kHz, TA = 25°C, unless otherwise specified - Schematic and BOM from Application Information section of this datasheet. VOUT V VOUT V +1% Typical -1% IOUT A Fig. 4 Load regulation, VIN=12V +1% Typical -1% VIN V Fig. 5 Line regulation, IOUT=25A SW VOUT IL 2us/d Fig. 6 VOUT ripple is 22mV at 25A, 12VIN, 1.2VOUT SW VOUT IL 20ms/d Fig. 7 VOUT ripple is 22mV at 0A, DCM, 12VIN, 1.2VOUT VIN VOUT SW IL VIN VOUT SW IL Fig. 8 Powerup, Forced CCM, IOUT=0A Fig. 9 Powerup, Forced CCM, IOUT=25A

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XRP6141
35A Synchronous Step Down COT Controller

December 2013

The XRP6141 is a synchronous step-down controller for point-of load supplies up to 35A. A wide 4.5V to 22V input voltage range allows for single supply operation from industry standard 5V, 12V and 19.6V rails.

With a proprietary emulated current mode Constant On-Time COT control scheme, the XRP6141 provides extremely fast line and load transient response using ceramic output capacitors. It requires no loop compensation hence simplifying circuit implementation and reducing overall component count. The control loop also provides exceptional line regulation and maintains constant operating frequency. A selectable power saving mode, allows the user to operate in discontinuous mode DCM at light current loads thereby significantly increasing the converter efficiency.

A host of protection features, including overcurrent, over-temperature, short-circuit and UVLO, help achieve safe operation under abnormal operating conditions.

The XRP6141 is available in RoHS compliant, green/halogen free space-saving 16-pin 3x3 QFN package.
• Networking and Communications
• Fast Transient Point-of-Loads
• Industrial and Medical Equipment
• Embedded High Power FPGA
• 35A Capable Step Down Controller − Wide Input Voltage Range o 5V to 22V Single Supply o 4.5V to 5.5V Low Vin − Integrated high Current 2A/3A Drivers − 0.6V to 18V Adjustable Output Voltage
• Proprietary Constant On-Time Control − No Loop Compensation Required − Ceramic Output Cap. Stable operation − Programmable 200ns-2µs − Constant 200kHz-800kHz Frequency − Selectable CCM or CCM/DCM Operation
• Programmable hiccup current limit with thermal compensation
• Precision Enable and Power-Good Flag
• Programmable Soft-start
• Integrated Bootstrap diode
• 16-pin QFN Package

TYPICAL APPLICATION DIAGRAM

Fig. 1 XRP6141 Application Diagram

Exar Corporation 48720 Kato Road, Fremont CA 94538, USA

Tel. +1 510 668-7000 Fax. +1 510 668-7001

XRP6141
35A Synchronous Step Down COT Controller

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

VIN -0.3V to 28V VCC -0.3V to 6.0V BST -0.3V to 34V2 BST-SW to 6V SW, ILIM -5V to 28V1,2 -0.3V to BST+0.3V to 6V ALL other pins................................... -0.3V to VCC+0.3V Storage Temperature -65°C to 150°C Junction Temperature 150°C Power Dissipation Internally Limited Lead Temperature Soldering, 10 sec 300°C ESD Rating HBM - Human Body Model 2kV

OPERATING RATINGS

VIN -0.3V to 22V VCC -0.3V to 5.5V SW, ILIM -1V to 26V1 PGOOD, VCC, TON, SS, EN, GL, FB -0.3V to 5.5V Switching Frequency 200kHz-800kHz3 Junction Temperature Range ....................-40°C to 125°C

Note 1 SW pin’s minimum DC range is -1V, transient is -5V for less than 50ns Note 2 No external voltage applied Note 3 Recommended

ELECTRICAL SPECIFICATIONS

Specifications are for Operating Junction Temperature of TJ = 25°C only limits applying over the full Operating Junction Temperature range are denoted by a Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise indicated, VIN = 12V, BST=VCC, SW=GND=PGND=0V, CGH=CGL=3.3nF.

Parameter

Min.

Power Supply Characteristics

VIN, Input Voltage Range

IVIN, VIN supply current

IVCC, VCC Quiescent current

IVIN, VIN supply current

IOFF, Shutdown current

Enable and Under-Voltage Lock-Out UVLO

VIH_EN, EN Pin Rising Threshold

VEN_HYS, EN Pin Hysteresis

VIH_EN, EN Pin Rising Threshold for DCM/CCM operation

VEN_HYS, EN Pin Hysteresis

VCC UVLO start threshold, rising edge

VCC UVLO Hysteresis
ORDERING INFORMATION

Temperature Range

Marking

XRP6141EL-F XRP6141ELMTR-F XRP6141ELTR-F XRP6141EVB
6141

XXXX

XRP6141 Evaluation Board

Package
3x3mm QFN16

Packing Quantity

Note 1

Tray
250/Tape & Reel

Lead Free and/or Halogen Free
3k/Tape & Reel
“Y” = Year “WW” = Work Week “X” = Lot Number when applicable.
2013 Exar Corporation
5/14

XRP6141
35A Synchronous Step Down COT Controller

TYPICAL PERFORMANCE CHARACTERISTICS

All data taken at VIN = 12V, VOUT=1.2V, f=300kHz, TA = 25°C, unless otherwise specified - Schematic and BOM from Application Information section of this datasheet.

VOUT V VOUT V
+1% Typical -1%

IOUT A

Fig. 4 Load regulation, VIN=12V
+1% Typical -1%

VIN V

Fig. 5 Line regulation, IOUT=25A

SW VOUT IL
2us/d

Fig. 6 VOUT ripple is 22mV at 25A, 12VIN, 1.2VOUT

SW VOUT

IL 20ms/d

Fig. 7 VOUT ripple is 22mV at 0A, DCM, 12VIN, 1.2VOUT

VIN VOUT

SW IL

VIN VOUT

SW IL

Fig. 8 Powerup, Forced CCM, IOUT=0A

Fig. 9 Powerup, Forced CCM, IOUT=25A

More datasheets: C374T-WQN-CT0W0151 | 240-080 | FIT0171 | 10821R | 5180/20C SL001 | 5180/20C SL002 | 5180/20C SL005 | 2570101 | XRP6141EL-F | XRP6141ELTR-F

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Datasheet ID: XRP6141ELMTR-F 512930