SC900AMLTRT

更新时间： 2024-02-03 02:00:28

品牌	Logo	应用领域
商升特 - SEMTECH		电源电路电源管理电路
页数	文件大小	规格书
23页	447K
描述
Programmable Penta ULDO with RESET and I2C Interface

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SC900AMLTRT 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	QFN	包装说明：	HVQCCN, LCC20,.16SQ,20
针数：	20	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.83	可调阈值：	YES
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	S-XQCC-N20
JESD-609代码：	e3	长度：	4 mm
信道数量：	5	功能数量：	1
端子数量：	20	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：	LCC20,.16SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	3.7 V
认证状态：	Not Qualified	座面最大高度：	1 mm
子类别：	Power Management Circuits	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	2.7 V	标称供电电压 (Vsup)：	3.7 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	MATTE TIN	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	4 mm
Base Number Matches：	1

SC900AMLTRT 数据手册

SC900A

Programmable Penta ULDO

with RESET and I²C Interface

POWER MANAGEMENT

Description

Features

The SC900A is a highly integrated power management de-

vice for low power portable applications. The device con-

tains ﬁve adjustable low-dropout linear regulators (LDOs)

with CMOS pass-devices as well as a band-gap reference,

I²C interface, and DACs to control the output voltages.

Five LDO regulators in one package

I²C interface with multiple device capability

Independent I²C enable/disable of LDOs

Independent I²C control of output voltages

Low thermal impedance of 40°C per watt

150mV dropout at 150mA

Many features of the SC900A are programmable through

the I²C interface. These include the ability to independent-

ly turn on any combination of the ﬁve regulators. All ﬁve

of the LDO output voltages are programmable in 50mV

steps from 1.45V to 3.00V for LDOs A and B, and from

1.75V to 3.30V for LDOs C, D and E. Each LDO can have

an active shutdown or nonactive shutdown program op-

tion through the interface. There is also a reset monitor

ﬂag that is associated with LDOA. In addition, the device

has a separate programmable power good monitor ﬂag

that activates when one or more LDOs go out of regula-

tion.

Input range from 2.7V to 5.5V

Programmable power good ﬂag

Minimal number of external components

Over temperature protection

Small 4mm x 4mm 20-lead MLPQ package

Small input/output ﬁlter capacitors

Programmable VOUT range -

1.45V to 3.00V for LDOs A and B

1.75V to 3.30V for LDOs C, D and E

Applications

The SC900A offers signiﬁcant quiescent current and

space savings to the system designer by sharing refer-

ence and biasing among ﬁve LDOs. The small and ther-

mally efﬁcient 20-lead MLPQ package make it ideal for

use in portable products where minimizing layout area is

critical.

Palmtop/Laptop computers

Personal Digital Assistants

Cellular telephones

Battery-powered equipment

High efﬁciency linear power supplies

Typical Application Circuit

SC900A

LDOE

LDOD

2.2uF

VIN

LDOA

LDOB

LDOC

INA

4.7uF

INB

VBAT

2.2uF

0.1uF

INCD

INE

LNA

Baseband

Processor

Receiver

Section

VREF

LDOPGD

ARST

SDA

SCL

TCXO

Synthesiser

Audio

Processing

VASEL

DGND

GND

Transmitter

Section

Keypad

Digital

Interface

CCD

Camera

Processing

2.2uF

www.semtech.com

November 14, 2005

12 3 4 5 6 7...23

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