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參數(shù)資料
| 型號(hào)： | MAX8896EREE+T |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 15/17頁 |
| 文件大?。?/td> | 449K |
| 描述： | IC REG TRPL BCK/LINEAR 16UCSP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 拓?fù)洌?/td> | 降壓（降壓）同步（2），線性（LDO）（1） |
| 功能： | 任何功能 |
| 輸出數(shù)： | 3 |
| 頻率 - 開關(guān)： | 2MHz |
| 電壓/電流 - 輸出 1： | 0.2 V ~ 1.7 V，700mA |
| 電壓/電流 - 輸出 2： | 3.1V，200mA |
| 電壓/電流 - 輸出 3： | 2.8V，200mA |
| 帶 LED 驅(qū)動(dòng)器： | 無 |
| 帶監(jiān)控器： | 無 |
| 帶序列發(fā)生器： | 無 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WFBGA，CSPBGA |
| 供應(yīng)商設(shè)備封裝： | 16-UCSP（4x4） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | 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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8896EVKIT+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual PWM Step-Down Converter in a 2mm x 2mm Package for WCDMA PA and RF Power RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)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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