MP38870DL-LF-Z

MP38870DL-LF-Z Datasheet

MP38870

Part	Datasheet
MP38870DL-LF-Z	MP38870DL-LF-Z (pdf)

Related Parts	Information
MP38870DL-LF-P	MP38870DL-LF-P

PDF Datasheet Preview
The Future of Analog IC Technology MP38870 3A, 14V, 600KHz Step-Down Converter with Synchronizable Gate Driver The MP38870 is a monolithic step-down switch mode converter with a built in internal high-side power MOSFET. It achieves 3A 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. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The MP38870 requires a minimum number of readily available standard external components and is available in a space saving 3mm x 4mm 14-pin QFN package. • Wide 4.5V to 14V Operating Input Range • 3A Continuous Output Current • Internal Power MOSFET Switch • Power Good Indicator • Synchronous Gate Driver Delivers up to 95% Efficiency • Fixed 600KHz Frequency • External Synchronous Option 250kHz- 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 3mm x 4mm 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 “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. 4, 5, 6 11 BST 12 VCC 8, 9, 10 SW 13 BG OFF ON 3 EN/SYNC GND VOUT 3.3V 3A EFFICIENCY % Efficiency vs. Output Current 100 VIN=5V 90 VIN=12V 80 75 70 VOUT=3.3V OUTPUT CURRENT A 10/22/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2009 MPS. All Rights Reserved. MP38870 3A, 14V, 600KHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER PACKAGE REFERENCE TOP VIEW FB 1 PG 2 EN/SYNC 3 IN 4 IN 5 IN 6 N/C 7 14 GND 13 BG 12 VCC 11 BST 10 SW 9 SW 8 SW EXPOSED PAD ON BACKSIDE CONNECT TO GROND Part Number* Package

PDF Datasheet Preview

The Future of Analog IC Technology

MP38870
3A, 14V, 600KHz Step-Down Converter with Synchronizable Gate Driver

The MP38870 is a monolithic step-down switch mode converter with a built in internal high-side power MOSFET. It achieves 3A 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.

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

The MP38870 requires a minimum number of readily available standard external components and is available in a space saving 3mm x 4mm 14-pin QFN package.
• Wide 4.5V to 14V Operating Input Range
• 3A Continuous Output Current
• Internal Power MOSFET Switch
• Power Good Indicator
• Synchronous Gate Driver Delivers up to
95% Efficiency
• Fixed 600KHz Frequency
• External Synchronous Option 250kHz-
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 3mm x 4mm 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
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc.
4, 5, 6
11 BST
12 VCC
8, 9, 10 SW
13 BG

OFF ON
3 EN/SYNC GND

VOUT 3.3V 3A

EFFICIENCY %

Efficiency vs. Output Current
100 VIN=5V
90 VIN=12V
80 75 70

VOUT=3.3V

OUTPUT CURRENT A
10/22/2009

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2009 MPS. All Rights Reserved.

MP38870 3A, 14V, 600KHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER

PACKAGE REFERENCE

TOP VIEW

FB 1 PG 2 EN/SYNC 3 IN 4 IN 5 IN 6 N/C 7
14 GND 13 BG 12 VCC 11 BST 10 SW 9 SW 8 SW

EXPOSED PAD ON BACKSIDE CONNECT TO GROND

Part Number*

Package

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 MP38870DL-LF-Z Datasheet file may be downloaded here without warranties.

Datasheet ID: MP38870DL-LF-Z 650029