MP8670DN-LF

MP8670DN-LF Datasheet

MP8670

Part	Datasheet
MP8670DN-LF	MP8670DN-LF (pdf)

Related Parts	Information
MP8670DN-LF-Z	MP8670DN-LF-Z

PDF Datasheet Preview
The Future of Analog IC Technology MP8670 6A, 30V, 420KHz Step-Down Converter with Synchronizable Gate Driver The MP8670 is a monolithic step-down switch mode converter with a built-in internal power MOSFET. It achieves 6A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and reliable over-current protection. The MP8670 requires a minimum number of readily available standard external components and is available in an 8-pin SOIC package with exposed pad. • Wide 4.5V to 30V Operating Input Range • 6A Continuous Output Current • Internal Power MOSFET Switch • Synchronizable Gate Driver Delivers up to 95% Efficiency • Fixed 420KHz Frequency • Synchronizable up to 1.5MHz • Cycle-by-Cycle Over Current Protection • Thermal Shutdown • Output Adjustable from 0.8V • Stable with Low ESR Output Ceramic Capacitors • Available in a Thermally Enhanced 8-Pin SOIC Package • Digital Set Top Boxes • Personal Video Recorders • Broadband Communications • Flat Panel Television and Monitors “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. 4/4/2011 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2011 MPS. All Rights Reserved. MP8670 6A, 30V, 420KHZ STEP-DOWN WITH SYNCHRONIZABLE GATE DRIVER VIN OFF ON 2 BST MP8670 1 SW 3 VCC C4 100nF 16V 7 EN/SYNC GND 5 VOUT 3.3V EFFICIENCY % Efficiency vs Output Current 100 VIN=12V VIN=28V 40 VOUT=3.3V 30 0123456 OUTPUT CURRENT A 4/4/2011 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2011 MPS. All Rights Reserved. MP8670 6A, 30V, 420KHZ STEP-DOWN WITH SYNCHRONIZABLE GATE DRIVER Part Number* MP8670DN ORDERING INFORMATION Package SOIC8E Top Marking MP8670DN Free Air Temperature TA to +85°C * For Tape & Reel, add suffix eg. For RoHS Compliant Packaging, add suffix eg. PACKAGE REFERENCE TOP VIEW SW 1 BST 2 VCC 3 8 IN 7 EN/SYNC 6 FB 5 GND EXPOSED PAD ON BACKSIDE ABSOLUTE MAXIMUM RATINGS 1 Supply Voltage VIN 32V VSW for < 10ns to 33V VBST VSW 6.5V All Pins to +6V Continuous Power Dissipation TA = +25°C 2 Junction Temperature ...............................150°C Lead Temperature Storage Temperature.............. to +150°C Recommended Operating Conditions 3 Supply Voltage VIN 4.5V to 30V Operating Junction to +125°C Thermal Resistance 4 SOIC8E 50 °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-to-ambient 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 JESD51-7, 4-layer PCB. 4/4/2011 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2011 MPS. All Rights Reserved. MP8670 6A, 30V, 420KHZ STEP-DOWN WITH SYNCHRONIZABLE 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

PDF Datasheet Preview

The Future of Analog IC Technology

MP8670
6A, 30V, 420KHz Step-Down Converter with Synchronizable Gate Driver

The MP8670 is a monolithic step-down switch mode converter with a built-in internal power MOSFET. It achieves 6A continuous output current over a wide input supply range with excellent load and line regulation.

Current mode operation provides fast transient response and reliable over-current protection.

The MP8670 requires a minimum number of readily available standard external components and is available in an 8-pin SOIC package with exposed pad.
• Wide 4.5V to 30V Operating Input Range
• 6A Continuous Output Current
• Internal Power MOSFET Switch
• Synchronizable Gate Driver Delivers up to
95% Efficiency
• Fixed 420KHz Frequency
• Synchronizable up to 1.5MHz
• Cycle-by-Cycle Over Current Protection
• Thermal Shutdown
• Output Adjustable from 0.8V
• Stable with Low ESR Output Ceramic

Capacitors
• Available in a Thermally Enhanced 8-Pin

SOIC Package
• Digital Set Top Boxes
• Personal Video Recorders
• Broadband Communications
• Flat Panel Television and Monitors
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc.
4/4/2011

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2011 MPS. All Rights Reserved.

MP8670 6A, 30V, 420KHZ STEP-DOWN WITH SYNCHRONIZABLE GATE DRIVER

VIN OFF ON
2 BST

MP8670
1 SW 3 VCC

C4 100nF 16V
7 EN/SYNC GND 5

VOUT 3.3V

EFFICIENCY %

Efficiency vs Output Current
100 VIN=12V

VIN=28V
40 VOUT=3.3V
30 0123456 OUTPUT CURRENT A
4/4/2011

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2011 MPS. All Rights Reserved.

MP8670 6A, 30V, 420KHZ STEP-DOWN WITH SYNCHRONIZABLE GATE DRIVER

Part Number* MP8670DN
ORDERING INFORMATION

Package SOIC8E

Top Marking MP8670DN

Free Air Temperature TA
to +85°C
* For Tape & Reel, add suffix eg. For RoHS Compliant Packaging, add suffix eg.

PACKAGE REFERENCE

TOP VIEW

SW 1 BST 2 VCC 3
8 IN 7 EN/SYNC 6 FB 5 GND

EXPOSED PAD ON BACKSIDE

ABSOLUTE MAXIMUM RATINGS 1

Supply Voltage VIN 32V VSW for < 10ns to 33V VBST VSW 6.5V All Pins to +6V Continuous Power Dissipation TA = +25°C 2

Junction Temperature ...............................150°C

Lead Temperature

Storage Temperature.............. to +150°C

Recommended Operating Conditions 3

Supply Voltage VIN 4.5V to 30V Operating Junction to +125°C

Thermal Resistance 4

SOIC8E 50 °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-to-ambient 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 JESD51-7, 4-layer PCB.
4/4/2011

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2011 MPS. All Rights Reserved.

MP8670 6A, 30V, 420KHZ STEP-DOWN WITH SYNCHRONIZABLE 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

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 MP8670DN-LF Datasheet file may be downloaded here without warranties.

Datasheet ID: MP8670DN-LF 650044