參數(shù)資料
型號(hào)： MAX861
廠商： Maxim Integrated Products, Inc.
英文描述： 50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters(50mA,高達(dá)250KHz的振蕩頻率,電荷泵電壓轉(zhuǎn)換器)
中文描述： 50mA、頻率可選的開(kāi)關(guān)電容電壓變換器
文件頁(yè)數(shù)： 1/12頁(yè)
文件大?。?/td> 116K
代理商： MAX861
_______________General Desc ription
The MAX860/MAX861 charge-pump voltage converters
invert input voltages ranging from 1.5V to 5.5V, or dou-
ble input voltages ranging from 2.5V to 5.5V. Because
of their high switching frequencies, these devices use
only two small, low-cost capacitors. Their 50mA output
makes switching regulators unnecessary, eliminating
inductors and their associated cost, size, and EMI.
Greater than 90% efficiency over most of the load-cur-
rent range, combined with a typical operating current of
only 200μA (MAX860), provides ideal performance for
both battery-powered and board-level voltage-conver-
sion applications.
A frequency-control (FC) pin provides three switching-
frequencies to optimize capacitor size and quiescent
current and to prevent interference with sensitive cir-
cuitry. Each device has a unique set of three available
consumption to less than 1μA. The MAX860/MAX861
are suitable for use in applications where the ICL7660
and MAX660's switching frequencies are too low. The
MAX860/MAX861 are available in 8-pin μMAX and
SO packages.
________________________Applic ations
Portable Computers
Medical Instruments
Interface Power Supplies
Hand-Held Instruments
Operational-Amplifier Power Supplies
__________Typic al Operating Circ uit
____________________________Features
o
8-Pin, 1.11mm High μMAX Package
o
Invert or Double the Input Supply Voltage
o
Three Selectable Switching Frequencies
o
High Frequency Reduces Capacitor Size
o
87% Efficiency at 50mA
o
200μA Quiescent Current (MAX860)
o
1μA Shutdown Supply Current
o
600mV Voltage Drop at 50mA Load
o
12
Output Resistance
______________Ordering Information
M
50mA, Frequenc y-S elec table,
S witc hed-Capac itor Voltage Converters
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
1
2
3
4
8
7
6
5
V
DD
SHDN
LV
OUT
C1-
GND
C1+
FC
MAX860
MAX861
SO/
μ
MAX
TOP VIEW
__________________Pin Configuration
1
2
3
4
8
7
6
5
FC
C1+
GND
C1-
OUT
LV
SHDN
V
DD
MAX860
MAX861
1
2
3
4
8
7
6
5
FC
C1+
GND
C1-
OUT
LV
SHDN
V
DD
MAX860
MAX861
INPUT
VOLTAGE
+1.5V TO+5.5V
INVERTED
NEGATIVE
OUTPUT
10
μ
F
C2
INPUT
VOLTAGE
+2.5V TO+5.5V
DOUBLED
POSITIVE
OUTPUT
10
μ
F
C2
10
μ
F
10
μ
F
C1
C1
VOLTAGE INVERTER
POSITIVE VOLTAGE DOUBLER
19-0239; Rev 0; 7/94
PART
MAX860
CSA
MAX860CUA
MAX860C/D
MAX860ESA
MAX860MJ A
MAX861
CSA
MAX861CUA
MAX861C/D
MAX861ESA
MAX861MJ A
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
8 SO
8 μMAX
Dice*
8 SO
8 CERDIP
8 SO
8 μMAX
Dice*
8 SO
8 CERDIP
* Dice are tested at T
A
= +25°C, DC parameters only.
Contact factory for availability.
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參數(shù)描述
MAX8610ETD+ 制造商:Maxim Integrated Products 功能描述:
MAX8610ETM+ 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
MAX8611ETM+ 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
MAX8611ETM+TW 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX8611VETM+ 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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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