MAX1682 Maxim, MAX1682 Datasheet
MAX1682
Manufacturer Part Number
MAX1682
Description
Switched-Capacitor Voltage Doublers
Manufacturer
Maxim
Datasheet
1.MAX1682.pdf
(8 pages)
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The ultra-small MAX1682/MAX1683 monolithic, CMOS
charge-pump voltage doublers accept input voltages
ranging from +2.0V to +5.5V. Their high voltage-con-
version efficiency (over 98%) and low operating current
(110µA for MAX1682) make these devices ideal for
both battery-powered and board-level voltage-doubler
applications.
Oscillator control circuitry and four power MOSFET
switches are included on-chip. The MAX1682 operates
at 12kHz and the MAX1683 operates at 35kHz. A typi-
cal application includes generating a 6V supply to
power an LCD display in a hand-held PDA. Both parts
are available in a 5-pin SOT23 package and can deliver
30mA with a typical voltage drop of 600mV.
________________________Applications
19-1305; Rev 1; 8/98
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
Small LCD Panels
Cell Phones
Handy-Terminals
PDAs
C1
5
3
1
Typical Operating Circuit
C1+
C1-
GND
________________________________________________________________ Maxim Integrated Products
VOLTAGE DOUBLER
MAX1682
MAX1683
General Description
Switched-Capacitor Voltage Doublers
OUT
IN
4
2
V
IN
C2
INPUT
SUPPLY
VOLTAGE
OUTPUT
VOLTAGE
2 x V
IN
Note: These parts are available in tape-and-reel only. Minimum
order quantity is 2500 pieces.
* Dice are tested at T
____________________________Features
MAX1682C/D
MAX1682EUK-T
MAX1683C/D
MAX1683EUK-T -40°C to +85°C
5-Pin SOT23 Package
+2.0V to +5.5V Input Voltage Range
98% Voltage-Conversion Efficiency
110µA Quiescent Current (MAX1682)
Requires Only Two Capacitors
Up to 45mA Output Current
PART
TOP VIEW
GND
OUT
-40°C to +85°C
C1-
A
0°C to +70°C
0°C to +70°C
= +25°C.
RANGE
TEMP.
1
2
3
Ordering Information
SOT23-5
MAX1682
MAX1683
Pin Configuration
PACKAGE
Dice*
5 SOT23-5
Dice*
5 SOT23-5
PIN-
5
4
C1+
IN
TOP MARK
ACCM
ACLL
SOT
—
—
1
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