- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄172369 > FAN5902MPX (FAIRCHILD SEMICONDUCTOR CORP) PDF資料下載
參數(shù)資料
| 型號： | FAN5902MPX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 中文描述： | SWITCHING CONTROLLER, PDSO12 |
| 封裝： | 3 X 3.50 MM, ROHS COMPLIANT, MO-229WFED-2, MLP-12 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 391K |
| 代理商： | FAN5902MPX |
May 2009
2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5902 Rev. 1.0.2.short
FA
N
5902
—
800mA
B
u
ck
C
onvert
e
rf
o
r3G
R
F
PA
s
FA
N
5902
—
800mA
B
u
ck
C
onvert
e
rf
o
r3G
R
F
PA
s
FAN5902
800mA Buck Converter for 3G RFPAs
Features
92% Efficient Synchronous Operation
2.7V to 5.5V Input Voltage Range
VOUT Range from 0.4V to 3.4V (or VIN)
Up to 800mA Output Current
20s Step Response
30s Bypass Transition Time
50m Integrated Bypass FET with Controlled Slew
Rate for Low Battery Voltage Operation
6MHz PWM Operation Allows 470nH Small Form
Factor Inductor
100% Duty Cycle for Low Dropout Operation
Thermal Shutdown
Input Under-Voltage Lockout
12-Lead MLP (0.8mm Maximum)
12-Bump WLCSP
Applications
Battery-Powered 3G RFPAs
Multiband/Multimode WCDMA/CDMA Handset RF
Transceivers
RF PC Cards
Pocket PC and PDAs with Communication
Capabilities
Description
The
FAN5902
is
a
high-efficiency,
low-noise,
synchronous, step-down DC-to-DC converter designed
for powering the radio frequency power amplifiers
(RFPA) in 3G mobile handsets and other mobile
applications. It provides up to 800mA of output current
over an input voltage range of 2.7V to 5.5V. The output
voltage can be dynamically adjusted from 0.4V up to
3.4V, proportional to an analog input voltage ranging
from 0.2V to 1.7V provided by an external DAC. This
allows supplying the RFPA with the voltage level that
provides optimum Power Added Efficiency (PAE).
An integrated bypass FET automatically switches on
when the battery voltage drops too close to the output
voltage
(when
VOUT=VBAT-250mV).
The
bypass
transition is controlled by a slew rate controller to limit
the inrush current and reduce the RFPA gain deviation.
The FAN5902 offers fast transition times, allowing
changes to the output voltage in less than 20s.
The FAN5902 operates at 6MHz, enabling the use of a
small, low-value inductor of 470nH. A current-mode
control loop with fast transient response ensures
excellent line and load regulation.
The FAN5902 improves the RFPA power efficiency and
increases the talk/connection time in 3G handsets.
The FAN5902 is available in a 12-lead MLP package
and 12-bump WLCSP.
Important
For
complete
performance
specifications
and
datasheet, please contact a Fairchild Semiconductor
sales representative.
Ordering Information
Part Number
Operating
Temperature Range
Package
Eco Status
Packing
Method
FAN5902MPX
-40 to +85°C
12-Lead, 3x3.5mm, Molded Leadless
Package (MLP)
RoHS
Tape and Reel
FAN5902UCX
-40 to +85°C
12-Bump, Wafer-Level Chip-Scale
Package (WLCSP)
RoHS
Tape and Reel
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FAN7389M | |
| FBI15G1M1-4 | 3.2 A, 400 V, SILICON, BRIDGE RECTIFIER DIODE |
| FBI15M1M1-4 | 3.2 A, 1000 V, SILICON, BRIDGE RECTIFIER DIODE |
| FBI3.7B1M1 | 3 A, 100 V, SILICON, BRIDGE RECTIFIER DIODE |
| FBI3.7F1M1-4 | 3 A, 300 V, SILICON, BRIDGE RECTIFIER DIODE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN5902UCX | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 ANG FG 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 安裝風格:SMD/SMT |
| FAN5903 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Buck Converter with Bypass Mode for 3 G / 3.5 G / 4 G PAs |
| FAN5903UCX | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Buck Converter 3G/3.5G and 4G PAs 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 安裝風格:SMD/SMT |
| FAN5904 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Multi-Mode Buck Converter for GSM/EDGE, 3G/3.5G and 4G PAs |
| FAN5904BUC01X | 制造商:Fairchild Semiconductor Corporation 功能描述:6W BUCK CONVERTER FOR GSM/EDGE AND WCDMA - Tape and Reel 制造商:Fairchild Semiconductor Corporation 功能描述:IC CONV BUCK W/BYPASS 16-WLCSP 制造商:Fairchild Semiconductor Corporation 功能描述:TAPE REEL / 6W Buck Converter for GSM/EDGE and WCDMA |
發(fā)布緊急采購，3分鐘左右您將得到回復。