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| 型号： | MAX8896EREE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 15/17页 |
| 文件大小： | 449K |
| 描述： | IC REG TRPL BCK/LINEAR 16UCSP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 拓扑： | 降压（降压）同步（2），线性（LDO）（1） |
| 功能： | 任何功能 |
| 输出数： | 3 |
| 频率 - 开关： | 2MHz |
| 电压/电流 - 输出 1： | 0.2 V ~ 1.7 V，700mA |
| 电压/电流 - 输出 2： | 3.1V，200mA |
| 电压/电流 - 输出 3： | 2.8V，200mA |
| 带 LED 驱动器： | 无 |
| 带监控器： | 无 |
| 带序列发生器： | 无 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFBGA，CSPBGA |
| 供应商设备封装： | 16-UCSP（4x4） |
| 包装： | 标准包装 |
| 其它名称： | MAX8896EREE+TDKR |
Dual PWM Step-Down Converter in a 2mm x
2mm Package for WCDMA PA and RF Power
______________________________________________________________________________________ 15
The MAX8896 maximum power dissipation depends on
the thermal resistance of the IC package and circuit
board, the temperature difference between the die
junction and ambient air, and the rate of airflow. The
power dissipated in the device is:
P
D
= P
OUT1
x (1/?/DIV>
OUT1
- 1) + P
OUT2
x (1/?/DIV>
OUT2
- 1) +
I
LDO
x (V
OUT2
- V
LDO
)
where 穒s the efficiency of the step-down converter and
P
OUT_
is the output power of the step-down converter.
The maximum allowed power dissipation is:
P
MAX
= (T
JMAX
- T
A
)/?/DIV>
JA
where (T
JMAX
- T
A
) is the temperature difference
between the MAX8896 die junction and the surrounding
air, ?/DIV>
JA
is the thermal resistance of the junction through
the PCB, copper traces, and other materials to the sur-
rounding air.
PCB Layout
High switching frequencies and relatively large peak
currents make the PCB layout a very important part of
design. Good design minimizes excessive EMI on the
feedback paths and voltage gradients in the ground
plane, resulting in a stable and well regulated output.
Connect C
IN1
close to IN1 and PGND1 and connect
C
IN2
close to IN2 and PGND2. Connect the inductor
and output capacitor as close as possible to the IC and
keep their traces short, direct, and wide. Keep noisy
traces, such as the LX node, as short as possible. Refer
to the MAX8896EVKIT for an example layout.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8896EVKIT+ | 功能描述:直流/直流开关转换器 Dual PWM Step-Down Converter in a 2mm x 2mm Package for WCDMA PA and RF Power RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX8899EVKIT+ | 制造商:Maxim Integrated Products 功能描述:EVALUATION KIT FOR MAX8899 - Boxed Product (Development Kits) |
| MAX8899EWZ+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX8899EWZ+T | 制造商:Maxim Integrated Products 功能描述:WCDMA/EDGE/GPRS/GSM/CDMA - Tape and Reel |
| MAX8899EWZ+TCAA | 制造商:Maxim Integrated Products 功能描述:WCDMA/EDGE/GPRS/GSM/CDMA PHONE PMIC - Rail/Tube |
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