| Brand Name: | ADI |
| Model Number: | MAX828EUK+T |
| MOQ: | 500PCS |
| Packaging Details: | 500PCS/reef |
| Payment Terms: | T/T |
ADI chips MAX828EUK+T Switched-Capacitor Voltage Inverters
Switched-Capacitor Voltage Inverters
General Description
The ultra-small MAX828/MAX829 monolithic, CMOS
charge-pump inverters accept input voltages ranging
from +1.5V to +5.5V. The MAX828 operates at 12kHz,
and the MAX829 operates at 35kHz. Their high efficiency
(greater than 90% over most of the load-current range)
and low operating current (60µA for the MAX828) make
these devices ideal for both battery-powered and board
level voltage-conversion applications.
The MAX828/MAX829 combine low quiescent current
and high efficiency. Oscillator control circuitry and four
power MOSFET switches are included on-chip.
Applications include generating a -5V supply from a +5V
logic supply to power analog circuitry. Both parts come
in a 5-pin SOT23-5 package and can deliver 25mA with
a voltage drop of 500mV.
For a similar device with logic-controlled shutdown,
refer to the MAX1719/MAX1720/MAX1721. For applica
tions requiring more power, the MAX860 delivers up to
50mA with a voltage drop of 600mV, in a space-saving
µMAX package
Features
5-Pin SOT23-5 Package
95% Voltage Conversion Efficiency
Inverts Input Supply Voltage
60µA Quiescent Current (MAX828)
+1.5V to +5.5V Input Voltage Range
Requires Only Two Capacitors
25mA Output Current
Applications
Small LCD Panels
Cell Phones
Medical Instruments
Handy-Terminals, PDAs
Battery-Operated Equipment
Ordering Information
![]()
Typical Operating Circuit
![]()
Pin Configuration
![]()