参数资料
| 型号： | SC900AMLTRT |
| 厂商： | Semtech |
| 文件页数： | 1/23页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .2A/.15A 20-MLPQ |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.45 V ~ 3 V，1.75 V ~ 3.3 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| 电压 - 压降（标准）： | 0.2V @ 200mA，0.15V @ 150mA |
| 稳压器数量： | 5 |
| 电流 - 输出： | 200mA（最小），150mA（最小），150mA（最小），150mA（最小），150mA（最小） |
| 电流 - 限制（最小）： | 250mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 供应商设备封装： | 20-MLPQ（4x4） |
| 包装： | 剪切带 (CT) |
| 产品目录页面： | 1358 (CN2011-ZH PDF) |
| 其它名称： | SC900AMLCT |
SC900A
Programmable Penta ULDO
with RESET and I 2 C Interface
POWER MANAGEMENT
Description
The SC900A is a highly integrated power management de-
vice for low power portable applications. The device con-
tains ? ve adjustable low-dropout linear regulators (LDOs)
with CMOS pass-devices as well as a band-gap reference,
I 2 C interface, and DACs to control the output voltages.
Many features of the SC900A are programmable through
the I 2 C interface. These include the ability to independent-
ly turn on any combination of the ? ve regulators. All ? ve
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
? ag that is associated with LDOA. In addition, the device
has a separate programmable power good monitor ? ag
that activates when one or more LDOs go out of regula-
tion.
The SC900A offers signi ? cant quiescent current and
space savings to the system designer by sharing refer-
ence and biasing among ? ve LDOs. The small and ther-
mally ef ? cient 20-lead MLPQ package make it ideal for
use in portable products where minimizing layout area is
critical.
Typical Application Circuit
SC900A
LDOE
LDOD
Features
Five LDO regulators in one package
I 2 C interface with multiple device capability
Independent I 2 C enable/disable of LDOs
Independent I 2 C control of output voltages
Low thermal impedance of 40°C per watt
150mV dropout at 150mA
Input range from 2.7V to 5.5V
Programmable power good ? ag
Minimal number of external components
Over temperature protection
Small 4mm x 4mm 20-lead MLPQ package
Small input/output ? lter 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
Palmtop/Laptop computers
Personal Digital Assistants
Cellular telephones
Battery-powered equipment
High ef ? ciency linear power supplies
2.2uF
VIN
LDOA
4.7uF
INA
LDOB
+
- VBAT
INB
INCD
INE
EN
LDOC
VREF
2.2uF
2.2uF
2.2uF
Baseband
Processor
Receiver
Section
LNA
LDOPGD
ARST
0.1uF
SDA
SCL
A0
GND
VASEL
DGND
Keypad
Audio
Processing
TCXO
&
Synthesiser
Transmitter
Section
PA
Digital
Interface
2.2uF
Camera
Processing
CCD
November 14, 2005
1
www.semtech.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC900CT | 功能描述:插线板 DIRECT BOX, CUSTOM 48V PHANTOM LIFT RoHS:否 制造商:Switchcraft 产品类型:Bantam (TT) 正规化: 高度/机架数量: 深度: 端接类型: 位置/触点数量:48 |
| SC900EVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Programmable Penta ULDO with RESET and I2C Interface |
| SC900IMLTRT | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Programmable Penta ULDO with RESET and I2C Interface |
| SC901001DR2 | 制造商:ON Semiconductor 功能描述: |
| SC9012 | 制造商:SILAN 制造商全称:Silan Microelectronics Joint-stock 功能描述:INFRARED REMOTE CONTROL TRANSMITTER |
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