Datasheet > NB671L

NB671L

更新时间： 2024-04-09 18:59:56

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
20页	979K
描述
5.5V-24V宽输入电压范围，6A，恒定导通时间（COT）控制模式同步降压变换器，具有低静态电流

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NB671L 数据手册

NB671L, 24V, HIGH CURRENT SYNCHRONOUS STEP-DOWN CONVERTER

NOT RECOMMENDED FOR NEW DESIGNS, REFER TO NB671LC OR NB691A

ORDERING INFORMATION

Part Number*

Package

Top Marking

NB671LGQ

QFN16 (3x3mm)

AES

* For Tape & Reel, add suffix –Z (e.g. NB671LGQ–Z)

PACKAGE REFERENCE

TOP VIEW

AGND EN

VCC BST

11 10

VIN

15 SW

16 SW

PGND

NC VOUT

LP#

Thermal Resistance ⁽⁵⁾

QFN16 (3mmx3mm)...............70 ......15 ...C/W

θ_JAθ_JC

ABSOLUTE MAXIMUM RATINGS ⁽¹⁾

Supply Voltage V_IN.......................................24V

V_SW............................................. -0.3V to 24.3V

V_SW(30ns) ................................... -3V to V_IN+4V

V_BST.....................................................V_SW+ 6V

V_EN...............................................................12V

Enable Current I_EN⁽²⁾................................ 2.5mA

All Other Pins............................. –0.3V to +5.5V

Notes:

1) Exceeding these ratings may damage the device.

2) Refer to Page 19 of Configuring the EN Control.

3) The maximum allowable power dissipation is a function of the

maximum junction temperature T_J(MAX), the junction-to-

ambient thermal resistance θ_JA, and the ambient temperature

T_A. The maximum allowable continuous power dissipation at

any ambient temperature is calculated by P_D(MAX)=(T_J(MAX)-

T_A)/θ_JA. 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)

Continuous Power Dissipation (T_A=+25)

QFN16...……………………….…..…………1.8W

Junction Temperature..............................150C

Lead Temperature ...................................260C

Storage Temperature...............-65C to +150C

4) The device is not guaranteed to function outside of its

operating conditions.

5) Measured on JESD51-7, 4-layer PCB.

Recommended Operating Conditions ⁽⁴⁾

Supply Voltage V_IN.......................... 5.5V to 22V

Output Voltage V_OUT................... 0.604V to 5.5V

Enable Current I_EN...................................... 1mA

Operating Junction Temp. (T_J). -40°C to +125°C

NB671L Rev. 1.02

1/5/2018

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

123 4 5 6 7...20

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