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SC905 PDF预览

SC905

更新时间: 2024-02-28 11:56:39
品牌 Logo 应用领域
商升特 - SEMTECH 手机
页数 文件大小 规格书
21页 780K
描述
CDMA Cellular Phone Power Management IC

SC905 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:QFN
包装说明:HVQCCN,针数:32
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.84
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-N32JESD-609代码:e3
长度:5 mm信道数量:1
功能数量:1端子数量:32
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
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:1 mm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:5 mm
Base Number Matches:1

SC905 数据手册

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SC905  
CDMA Cellular Phone  
Power Management IC  
POWER MANAGEMENT  
Description  
Features  
The SC905 is a power management integrated circuit  
(PMIC) designed for the latest CDMA chip sets. The device  
provides four general purpose low dropout regulators  
(LDOs), and ve low noise LDOs designed for analog cir-  
cuits. The VMOT LDO can be used as a general purpose  
regulator or as an adjustable motor drive output that can  
supply up to 150mA to drive a vibrator motor.  
9 LDO Linear Regulators  
CORE: 1.35V - 2.90V @ 300mA  
ANA: 2.55V - 2.90V @ 200mA  
PAD: 1.35V - 2.90V @ 300mA  
RX: 2.55V - 2.90V @ 150mA  
TX: 2.55V - 2.90V @ 150mA  
TCXO: 2.55V - 2.90V @ 80mA  
PLL: 2.55V - 2.90V @ 80mA  
Camera: 1.35V - 2.90V @ 100mA  
Motor Drive: 1.35V - 2.90V @ 150mA  
I2C Interface for Microprocessor Control  
Less than 1μA Quiescent Current in Shutdown  
65dB PSRR for Analog LDOs  
Over-Temperature Protection  
Power-On Control  
Each LDOs enable and output voltage are controlled via  
the I2C bus. An optional three-wire interface compatible  
with Semtech battery charger ICs is also controlled via the  
I2C bus.  
Initial power-on is achieved by activating either the ON or  
the HFPWR signal, and the PGOOD input is used by the  
microprocessor to latch power on or disable the device.  
Optional Interface for Controlling Semtech  
Battery Chargers  
The small and thermally efcient MLPQ-32 package and  
use of ceramic bypass capacitors, minimize the required  
PCB area making the SC905 ideal for space-conscious  
portable applications.  
Small 5mm x 5mm 32-Pin QFN Package  
Applications  
CDMA Cellular Handsets  
Palmtop/Laptop Computers  
Battery Powered Equipment  
Typical Application Circuit  
VBAT  
TCXO  
+
Synthesiser  
SC905  
1μF  
Battery  
Charger  
Circuit  
VBAT  
CPB  
10μF  
IN1  
IN2  
BATTERY  
CHRGB  
FAULTB  
PLL  
IN3  
IN4  
1μF  
ON/OFF  
IN5  
IN6  
ON  
Handsfree  
Option  
DVIN  
VCORE  
VPAD  
VANA  
VTCXO  
VPLL  
VTX  
PA  
HFPWR  
PGOOD  
SDA  
Transmitter  
Section  
1μF  
SCL  
1μF  
PWRON  
RESB  
1μF  
LNA  
Receiver  
Section  
VRX  
VMOT  
BP  
VCAM  
VPSEL  
VCSEL  
DGND  
0.1μF  
Baseband  
Processor  
1μF  
MOTOR  
AGND  
1μF  
Camera  
Module  
1μF  
Audio  
Processing  
Keypad  
Digital  
Interface  
June 7, 2006  
1
www.semtech.com  

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