Datasheet > MPQ8632-12

MPQ8632-12

更新时间： 2024-04-09 19:01:04

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
47页	1177K
描述
12A, 2.5-18V, 恒定导通时间（COT）控制模式同步降压变换器，具有断续导通模式(DCM)和非锁定过压保护功能

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MPQ8632-12 数据手册

MPQ8632 HIGH EFFICIENCY 18V SYNCHRONOUS STEP-DOWN CONVERTER FAMILY FOR 4A TO 20A

ABSOLUTE MAXIMUM RATINGS ⁽¹⁾

Thermal Resistance ⁽⁵⁾

θ_JA

θ_JC

Supply Voltage V_IN....................................... 21V

QFN (3x4mm).........................46....... 9.... C/W

QFN (5x4mm).........................38....... 6.... C/W

_SW........................................-0.3V to V_IN+ 0.3V

_SW(30ns)...................................-3V to V_IN+ 3V

_BST………………………V_SW- 0.3V to V_SW+ 6V

_BST(30ns) ........................................ V_SW+ 6.5V

Notes:

1) Exceeding these ratings may damage the device.

2) Refer to the section “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.

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

All Other Pins.................................–0.3V to +6V

(3)

Continuous Power Dissipation (T_A=+25)

QFN3X4……………………….…..…………2.7W

QFN5X4……………………….…..…………3.3W

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...........................4.5V to 18V

Output Voltage V_OUT.....................0.611V to 13V

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

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

MPQ8632 Rev.1.27

7/3/2018

www.MonolithicPower.com

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

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