5秒后页面跳转
MAX8896 PDF预览

MAX8896

更新时间: 2024-11-06 14:57:31
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
17页 449K
描述
双通道PWM降压型转换器,采用2mm x 2mm封装,适用于WCDMA PA和RF电源

MAX8896 数据手册

 浏览型号MAX8896的Datasheet PDF文件第2页浏览型号MAX8896的Datasheet PDF文件第3页浏览型号MAX8896的Datasheet PDF文件第4页浏览型号MAX8896的Datasheet PDF文件第5页浏览型号MAX8896的Datasheet PDF文件第6页浏览型号MAX8896的Datasheet PDF文件第7页 
19-4663; Rev 0; 5/09  
Dual PWM Step-Down Converter in a 2mm x  
2mm Package for WCDMA PA and RF Power  
MAX896  
General Description  
Features  
The MAX8896 dual step-down converter is optimized  
for powering the power amplifier (PA) and RF transceiv-  
er in WCDMA handsets. This device integrates a high-  
efficiency PWM step-down converter (OUT1) for  
medium and low-power transmission, and a 140m  
(typ) bypass FET to power the PA directly from the bat-  
tery during high-power transmission. A second high-  
efficiency PWM step-down converter (OUT2) supplies  
power directly to a high PSRR, low output noise, 200mA  
low-dropout linear regulator (LDO) to power the RF  
transceiver.  
o PA Step-Down Converter (OUT1)  
7.5µs (typ) Settling Time for 0.5V to 1V Output  
Voltage Change  
Dynamic Output Voltage Setting from 0.5V to  
V
BATT  
140mBypass PFET and 100% Duty Cycle  
for Low Dropout  
2MHz Switching Frequency  
Low Output Voltage Ripple  
700mA (min) Output Drive Capability  
2% Gain Accuracy  
Fast switching allows the use of small ceramic input and  
output capacitors while maintaining low ripple voltage.  
The feedback network is integrated reducing external  
component count and total solution size. OUT1 uses an  
analog input driven by an external DAC to control the  
output voltage linearly for continuous PA power adjust-  
ment. At high duty cycle, OUT1 automatically switches to  
bypass mode, connecting the input to the output through  
a low-impedance (140m, typ) MOSFET.  
Tiny External Components  
o RF Step-Down Converter (OUT2)  
2MHz Fixed Switching Frequency  
94% Peak Efficiency  
100% Duty Cycle  
2% Output Accuracy Over Load, Line, and  
Temperature  
200mA (min) Output Drive Capability  
Tiny External Components  
OUT2 is a 2MHz fixed-frequency, step-down converter  
capable of operating at 100% duty cycle. Output accu-  
racy is 2% over load, line, and temperature. The out-  
put of OUT2 is preset to 3.1V to provide power to a  
o Low-Noise LDO  
Guaranteed 200mA Output  
High 65dB (typ) PSRR  
Fixed Output Voltage  
200mA, 2.8V LDO designed for low noise (16µV  
,
RMS  
typ), high PSRR (65dB, typ) operation. This configura-  
tion provides noise attenuation for the RF transceiver  
power supply in the 100Hz to 100kHz range.  
Low Noise (16µV  
, typ)  
RMS  
o Simple Logic ON/OFF Controls  
o Low 0.1µA Shutdown Current  
o 2.7V to 5.5V Supply Voltage Range  
o Thermal Shutdown  
Other features include separate output enables, low-  
supply current shutdown, output overcurrent, and  
overtemperature protection. The MAX8896 is available  
in a 16-bump, 2mm x 2mm UCSP™ package (0.7mm  
max height).  
o 2mm x 2mm UCSP Package (4 x 4 Grid)  
Applications  
WCDMA/NCDMA Cellular Handsets  
Ordering Information  
LDO  
VOLTAGE  
Smartphones  
PART  
PIN-PACKAGE  
MAX8896EREE+T  
16 UCSP (0.5mm pitch)  
2.80V  
Note: Device operates over the -40°C to +85°C temperature  
range.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
T = Tape and reel.  
Pin Configurations appear at end of data sheet.  
UCSP is a trademark of Maxim Integrated Products, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
For information on other Maxim products, visit Maxim’s website at www.maxim-ic.com.  

与MAX8896相关器件

型号 品牌 获取价格 描述 数据表
MAX8896EREE+T MAXIM

获取价格

Dual PWM Step-Down Converter in a 2mm x 2mm Package for WCDMA PA and RF Power
MAX889RESA MAXIM

获取价格

High-Frequency, Regulated, 200mA, Inverting Charge Pump
MAX889RESA+ MAXIM

获取价格

Switched Capacitor Regulator, 0.2A, 2500kHz Switching Freq-Max, BICMOS, PDSO8, 0.150 INCH,
MAX889RESA+T MAXIM

获取价格

暂无描述
MAX889RESA-T MAXIM

获取价格

Switched Capacitor Regulator, 0.2A, 2500kHz Switching Freq-Max, BICMOS, PDSO8, 0.150 INCH,
MAX889SESA MAXIM

获取价格

High-Frequency, Regulated, 200mA, Inverting Charge Pump
MAX889SESA+ MAXIM

获取价格

Switched Capacitor Regulator, 0.2A, 1250kHz Switching Freq-Max, BICMOS, PDSO8, 0.150 INCH,
MAX889SESA+T MAXIM

获取价格

Switched Capacitor Regulator, 0.2A, 1250kHz Switching Freq-Max, BICMOS, PDSO8, 0.150 INCH,
MAX889SESA-T MAXIM

获取价格

Switched Capacitor Regulator, 0.2A, 1250kHz Switching Freq-Max, BICMOS, PDSO8, 0.150 INCH,
MAX889SEVKIT MAXIM

获取价格

Remote/Local Temperature Sensor with Dual Alarm Outputs and SMBus Serial Interface[MAX1619