MP38671DL-LF-Z

MP38671DL-LF-Z Datasheet

MP38671

Part	Datasheet
MP38671DL-LF-Z	MP38671DL-LF-Z (pdf)

Related Parts	Information
MP38671DL-LF-P	MP38671DL-LF-P

PDF Datasheet Preview
The Future of Analog IC Technology MP38671 10A, 25V, 600KHz Step-Down Converter with Synchronizable Gate Driver The MP38671 is a monolithic step-down switch mode converter with a built in internal power MOSFET. It achieves 10A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The MP38671 requires a minimum number of readily available standard external components and is available in a space saving 3 x4mm 14-pin QFN package. • Wide 4.5V to 25V Operating Input Range • 10A Continuous Output Current • Internal Power MOSFET Switch • Power Good Indicator • Synchronous Gate Driver Delivers up to 95% Efficiency • Fixed 600KHz Frequency • Synchronizable to >1MHz External Clock • Cycle-by-Cycle Over Current Protection • Thermal Shutdown • Output Adjustable from 0.8V to 15V • Stable with Low ESR Output Ceramic Capacitor • Available in a 3x4mm 14-Pin QFN Package • Point of Load Regulator in Distributed Power System • Digital Set Top Boxes • Personal Video Recorders • Broadband Communications • Flat Panel Television and Monitors For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. 4, 5, 6 IN 11 BST 12 VCC 8, 9, 10 SW MP38671 13 BG OFF ON 3 EN/SYNC GND 9/2/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. MP38671 10A, 25V, 600KHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER Part Number* MP38671DL ORDERING INFORMATION Package 3x4 QFN14 Top Marking 3867 Free Air Temperature TA -40°C to +85°C * For Tape & Reel, add suffix e.g. For RoHS Compliant Packaging, add suffix e.g. MP PACKAGE REFERENCE TOP VIEW FB 1 PG 2 EN/SYNC 3 IN 4 IN 5 IN 6 N/C 7 EXPOSED PAD ON BACKSIDE CONNECT TO GND 14 GND 13 BG 12 VCC 11 BST 10 SW 9 SW 8 SW ABSOLUTE MAXIMUM RATINGS 1 Supply Voltage VSW -0.3V -5V for < 10ns to 29V VBS VSW + 6V All Other Pins................................ to +6V Junction Temperature 150°C Lead Temperature 260°C Storage Temperature.............. to +150°C Recommended Operating Conditions 3 Supply Voltage VIN......................... 4.5V to 25V Output Voltage VOUT 0.8V to 15V Maximum Junction Temp. TJ +125°C Thermal Resistance 4 3x4 QFN14 11 ....°C/W Notes 1 Exceeding these ratings may damage the device. 2 The maximum allowable power dissipation is a function of the maximum junction temperature TJ MAX , the junction-toambient thermal resistance and the ambient temperature TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3 The device is not guaranteed to function outside of its operating conditions. 4 Measured on JESD5 1-7, 4-layer PCB.. The exposed pad must be thermally connected to a ground plane or most negative supply plane in split-supply applications . 9/2/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. MP38671 10A, 25V, 600KHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER ELECTRICAL CHARACTERISTICS VIN = 12V, TA = +25°C, unless otherwise noted. Parameters Feedback Voltage Feedback Current Switch On Resistance 5 Switch Leakage Current Limit 5 VFB IFB RDS ON Oscillator Frequency Fold-back Frequency Maximum Duty Cycle Minimum On Time 5 Under Voltage Lockout Threshold Rising Under Voltage Lockout Threshold Hysteresis EN Input Low Voltage En Input High Voltage EN Input Current Supply Current Shutdown Supply Current Quiescent Thermal Shutdown BG Driver Bias Supply Voltage Gate Driver Sink Impedance 5 Gate Driver Source Impedance 5 Gate Drive Current Sense Trip Threshold Power Good Threshold Power Good Threshold Hysteresis PG Pin Level Soft Start Time Notes 5 Guaranteed by design. VCC RSINK RSOURCE VSW VPG TSS Condition 4.5V VIN 25V VFB = 0.8V VEN = 0V, VSW = 0V VFB = 0.6V VFB = 0V VFB = 0.6V

PDF Datasheet Preview

The Future of Analog IC Technology

MP38671
10A, 25V, 600KHz Step-Down Converter with Synchronizable Gate Driver

The MP38671 is a monolithic step-down switch mode converter with a built in internal power MOSFET. It achieves 10A continuous output current over a wide input supply range with excellent load and line regulation.

Current mode operation provides fast transient response and eases loop stabilization.

Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.

The MP38671 requires a minimum number of readily available standard external components and is available in a space saving 3 x4mm 14-pin QFN package.
• Wide 4.5V to 25V Operating Input Range
• 10A Continuous Output Current
• Internal Power MOSFET Switch
• Power Good Indicator
• Synchronous Gate Driver Delivers up to
95% Efficiency
• Fixed 600KHz Frequency
• Synchronizable to >1MHz External Clock
• Cycle-by-Cycle Over Current Protection
• Thermal Shutdown
• Output Adjustable from 0.8V to 15V
• Stable with Low ESR Output Ceramic

Capacitor
• Available in a 3x4mm 14-Pin QFN Package
• Point of Load Regulator in Distributed Power System
• Digital Set Top Boxes
• Personal Video Recorders
• Broadband Communications
• Flat Panel Television and Monitors

For MPS green status, please visit MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc.
4, 5, 6 IN
11 BST
12 VCC
8, 9, 10 SW

MP38671
13 BG

OFF ON
3 EN/SYNC GND
9/2/2014

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
2014 MPS. All Rights Reserved.

MP38671 10A, 25V, 600KHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER

Part Number* MP38671DL
ORDERING INFORMATION

Package 3x4 QFN14

Top Marking 3867

Free Air Temperature TA -40°C to +85°C
* For Tape & Reel, add suffix e.g. For RoHS Compliant Packaging, add suffix e.g. MP

PACKAGE REFERENCE

TOP VIEW

FB 1 PG 2 EN/SYNC 3 IN 4 IN 5 IN 6 N/C 7

EXPOSED PAD ON BACKSIDE CONNECT TO GND
14 GND 13 BG 12 VCC 11 BST 10 SW 9 SW 8 SW

ABSOLUTE MAXIMUM RATINGS 1

Supply Voltage VSW -0.3V -5V for < 10ns to 29V VBS VSW + 6V All Other Pins................................ to +6V Junction Temperature 150°C Lead Temperature 260°C Storage Temperature.............. to +150°C

Recommended Operating Conditions 3 Supply Voltage VIN......................... 4.5V to 25V Output Voltage VOUT 0.8V to 15V Maximum Junction Temp. TJ +125°C

Thermal Resistance 4 3x4 QFN14 11 ....°C/W

Notes 1 Exceeding these ratings may damage the device. 2 The maximum allowable power dissipation is a function of the
maximum junction temperature TJ MAX , the junction-toambient thermal resistance and the ambient temperature TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3 The device is not guaranteed to function outside of its operating conditions. 4 Measured on JESD5 1-7, 4-layer PCB.. The exposed pad must be thermally connected to a ground plane or most negative supply plane in split-supply applications .
9/2/2014

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
2014 MPS. All Rights Reserved.

MP38671 10A, 25V, 600KHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER

ELECTRICAL CHARACTERISTICS

VIN = 12V, TA = +25°C, unless otherwise noted.

Parameters

Feedback Voltage

Feedback Current Switch On Resistance 5

Switch Leakage Current Limit 5

VFB IFB RDS ON

Oscillator Frequency

Fold-back Frequency

Maximum Duty Cycle

Minimum On Time 5

Under Voltage Lockout Threshold Rising

Under Voltage Lockout Threshold Hysteresis

EN Input Low Voltage

En Input High Voltage

EN Input Current

Supply Current Shutdown Supply Current Quiescent Thermal Shutdown BG Driver Bias Supply Voltage Gate Driver Sink Impedance 5 Gate Driver Source Impedance 5 Gate Drive Current Sense Trip Threshold Power Good Threshold Power Good Threshold Hysteresis PG Pin Level Soft Start Time

Notes 5 Guaranteed by design.

VCC RSINK RSOURCE VSW

VPG TSS

Condition 4.5V VIN 25V VFB = 0.8V VEN = 0V, VSW = 0V VFB = 0.6V VFB = 0V VFB = 0.6V

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MP38671DL-LF-Z Datasheet file may be downloaded here without warranties.

Datasheet ID: MP38671DL-LF-Z 650028