Rainbow Electronics MAX1683 - Manual

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
General Description
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
Small LCD Panels
Cell Phones
Handy-Terminals
PDAs
____________________________Features
♦ 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
MAX1682/MAX1683
Switched-Capacitor Voltage Doublers
________________________________________________________________ Maxim Integrated Products 1
OUT
IN C1-
1 5 C1+ GND
MAX1682
MAX1683
SOT23-5
TOP VIEW
2
3 4
Pin Configuration
VOLTAGE DOUBLER
C1+
C1-
IN
OUT
GND
INPUT
SUPPLY
VOLTAGE
OUTPUT
VOLTAGE
2 x V
IN
MAX1682
MAX1683
1
3
C1
C2
5 4
2
V
IN
Typical Operating Circuit
19-1305; Rev 2; 9/00
PART
MAX1682EUK-T -40°C to +85°C
TEMP.
RANGE
PIN-
PACKAGE
5 SOT23-5
Ordering Information
Note: These parts are available in tape-and-reel only. Minimum
order quantity is 2500 pieces.
MAX1683EUK-T -40°C to +85°C 5 SOT23-5
SOT
TOP MARK
ACCL
ACCM