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參數(shù)資料
| 型號(hào)： | MAX850 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Noise, Regulated, Negative Charge-Pump Power Supplies for GaAsFET Bias |
| 中文描述： | 低噪聲、穩(wěn)壓型、負(fù)輸出電荷泵，用于GaAsFET偏置電源 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 118K |
| 代理商： | MAX850 |
_______________General Desc ription
The MAX850–MAX853 low-noise, inverting, charge-
pump power supplies are ideal for biasing GaAsFETs in
cellular telephone transmitter amplifiers.
The MAX850–MAX852 offer both preset (-4.1V) and
adjustable (-0.5V to -9.0V) output voltages. The
MAX853 uses an external positive control voltage to set
the negative output voltage. Input voltage range for all
four devices is 4.5V to 10V. Output current is 5mA.
An internal linear regulator reduces the output voltage
ripple to 2mVp-p. With a well-filtered control voltage
(V
CTRL
), the MAX853 achieves typical output ripple of
less than 1mVp-p. Supply current is 3mA max, and
shutdown current is less than 1μA max over temperature
(5μA max for MAX851).
________________________Applic ations
Cellular Phones
Negative Regulated Power Supplies
Personal Communicators, PDAs
Wireless Data Loggers
Continuously Adjustable GaAsFET Bias
LCD-Bias Contrast Control
____________________________Features
o
Fixed -4.1V or Adjustable -0.5V to -9V Output at 5mA
o
4.5V to 10V Input Voltage Range
o
2mVp-p Output Voltage Ripple (MAX850–MAX852)
1mVp-p Output Voltage Ripple (MAX853)
o
100kHz Charge-Pump Switching Frequency
(MAX850/MAX851/MAX853)
o
External Synchronizing Clock Input (MAX852)
o
Logic-Level Shutdown Mode: 1μA Max Over
Temperature (MAX850/MAX852/MAX853)
o
Low Cost, 8-Pin SO Package
Low-Noise, Regulated, Negative
Charge-Pump Power Supplies for GaAsFET Bias
________________________________________________________________ Maxim Integrated Products
1
1
2
3
4
8
7
6
5
IN
GND
OUT
FB**
(MAX850–852)
SHDN*
(MAX850/853)
NEGOUT
C1-
C1+
MAX850
MAX851
MAX852
MAX853
SO
TOP VIEW
* SHDN (MAX851)
OSC (MAX852)
** CONT (MAX853)
__________________Pin Configuration
MAX850
MAX851
MAX852
FB
OUT
SHDN*
SHDN
OSC
NEGOUT
C1-
C1+
IN
GND
V
IN
= 4.5V to 10.0V
(4 CELLS)
C3
V
OUT
= -4.1V
(V
GG
of GaAsFET)
C4
C1
C2
* MAX850: SHDN
MAX851: SHDN
MAX852: OSC
__________Typic al Operating Circ uit
19-0238; Rev 2; 4/96
EVALUATION KIT MANUAL
PART
MAX850ISA
MAX850ESA
MAX851
C/D
MAX851ISA
MAX851ESA
MAX852
C/D
MAX852ISA
MAX852ESA
MAX853
C/D
MAX853ISA
MAX853ESA
-40°C to +850°C
0°C to +70°C
-25°C to +85°C
-40°C to +85°C
0°C to +70°C
-25°C to +85°C
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
Dice*
8 SO
8 SO
Dice*
8 SO
8 SO
Dice*
8 SO
8 SO
Dice*
8 SO
8 SO
______________Ordering Information
*Dice are specified at T
A
= +25°C only.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
-40°C to +85°C
0°C to +70°C
-25°C to +85°C
-40°C to +85°C
-25°C to +85°C
ise*
MAX850
C/D
M
FOLLOWS DATA SHEET
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX852 | Low-Noise, Regulated, Negative Charge-Pump Power Supplies for GaAsFET Bias |
| MAX850-MAX853 | Low-Noise, Regulated, Negative Charge-Pump Power Supplies for GaAsFET Bias |
| MAX850ESA | Quadruple 2-Input Positive-AND Gates 14-CFP -55 to 125 |
| MAX850ISA | Quadruple 2-Input Positive-AND Gates 14-CDIP -55 to 125 |
| MAX851 | Quadruple 2-Input Positive-AND Gates 20-LCCC -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8500ETC | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
| MAX8501ETC | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
| MAX8501SA | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX8502ETC | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
| MAX8503ETC | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
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