AVAILABLE
EVALUATION KIT AVAILABLE
MAX710/MAX711 3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters
_______________G...
AVAILABLE
EVALUATION KIT AVAILABLE
MAX710/MAX711 3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters
_______________General Description
The MAX710/MAX711 integrate a step-up DC-DC converter with a linear
regulator to provide step-up/down voltage conversion. They are optimized for battery applications where the input varies above and below the regulated output voltage. They have an input range from +1.8V to +11V. Typical efficiency when boosting battery inputs is 85%.
The MAX710/MAX711 can be configured for minimum noise or optimum efficiency. Shutdown control turns off the part completely, disconnecting the input from the output (ISHDN = 0.2µA). Standby control turns off only the step-up converter and leaves the low-power linear
regulator active (IQ = 7µA).
The MAX710 has a preset 3.3V or 5V output voltage. The MAX711 has an adjustable output that can be set from +2.7V to +5.5V with two resistors. Both devices come in 16-pin narrow SO packages.
________________________Applications
Single-Cell, Lithium-Powered Portable Devices
Digital Cameras
2- to 4-Cell AA Alkaline Hand-Held Equipment
3.3V and Other Low-Voltage Systems
2-, 3-, and 4-Cell Battery-Powered Equipment
Battery-Powered Devices with AC Input Adapters
____________________________Features
o Step-Up/Down Voltage Conversion
o +1.8V to +11V Input Range
o Output: 5V/250mA at VIN = 1.8V 5V/500mA at VIN = 3.6V
o No External FETs Required
o Load Disconnected from Input in Shutdown
o Battery Drain: 200µA No-Load (VIN = 4V...