PM6675S

更新时间： 2024-02-03 09:38:23

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器控制器
页数	文件大小	规格书
53页	2635K
描述
High efficiency step-down controller with embedded 2 A LDO regulator

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技术参数
数据手册

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PM6675S 技术参数

生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	HVQCCN, LCC24,.16SQ,20	针数：	24
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.83
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER	控制模式：	VOLTAGE-MODE
最大输入电压：	36 V	最小输入电压：	4.5 V
标称输入电压：	5 V	JESD-30 代码：	S-XQCC-N24
长度：	4 mm	功能数量：	1
端子数量：	24	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装等效代码：	LCC24,.16SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态：	Not Qualified	座面最大高度：	1 mm
子类别：	Switching Regulator or Controllers	表面贴装：	YES
切换器配置：	PUSH-PULL	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	宽度：	4 mm
Base Number Matches：	1

PM6675S 数据手册

PM6675S

High efficiency step-down controller

with embedded 2 A LDO regulator

Features

■ Switching section

– 4.5 V to 28 V input voltage range

– 0.6 V, 1 ꢀ voltage reference

– Selectable 1.5 V fixed output voltage

– Adjustable 0.6 V to 3.3 V output voltage

– 1.237 V 1 ꢀ reference voltage available

VFQFPN-24 4x4

– Very fast load transient response using

constant on-time control loop

– No R

current sensing using low side

SENSE

Description

MOSFETs' R

DS(ON)

The PM6675S device consists of a single high

efficiency step-down controller and an

independent Low Drop-Out (LDO) linear

regulator.

– Negative current limit

– Latched OVP and UVP

– Soft-start internally fixed at 3 ms

– Selectable pulse skipping at light load

The Constant On-Time (COT) architecture

assures fast transient response supporting both

electrolytic and ceramic output capacitors. An

embedded integrator control loop compensates

the DC voltage error due to the output ripple.

– Selectable No-Audible (33 kHz) pulse skip

mode

– Ceramic output capacitors supported

– Output voltage ripple compensation

– Output soft-end

A selectable low-consumption mode allows the

highest efficiency over a wide range of load

conditions. The low-noise mode sets the minimum

switching frequency to 33 kHz for audio-sensitive

applications.

■ LDO regulator section

– Adjustable 0.6 V to 3.3 V output voltage

– Selectable 1 Apk or 2 Apk current limit

– Dedicated power-good signal

– Ceramic output capacitors supported

– Output soft-end

The LDO linear regulator can sink and source up

to 2 Apk. Two fixed current limits ( 1 A- 2 A) can

be chosen.

Applications

An active soft-end is independently performed on

both the switching and the linear regulators

outputs when disabled.

■ Notebook computers

■ Graphic cards

■ Embedded computers

Table 1.

Device summary

Order codes

Package

Packaging

PM6675S

Tube

VFQFPN-24 4x4 (exposed pad)

PM6675STR

Tape and reel

February 2008

Rev 1

1/53

www.st.com

12 3 4 5 6 7...53

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