MAX662ACSA

The MAX662ACSA is one member of the MAX662A series. MAX662ACSA has the following features including (1)Regulated +12V ±5% Output Voltage;(2)4.5V to 5.5V Supply Voltage Range;(3)Guaranteed 30mA Output;(4)No Inductor-Uses Only 4 Capacitors.The MAX662A is the first charge-pump boost converter to provide a regulated +12V output. It requires only a few inexpensive capacitors, and the entire circuit is completely surface-mountable.

The MAX662ACSA is a regulated +12V, 30mA-output, chargepump DC-DC converter. It provides the necessary +12V ±5% output to program byte-wide flash memories, and requires no inductors to deliver a guaranteed 30mA output from inputs as low as 4.75V. It fits into less than 0.1in2 of board space. The MAX662ACSA is a pin-compatible upgrade to the MAX662, and is recommended for new designs. The MAX662ACSA offers lower quiescent and shutdown currents, and guarantees the output current over all temperature ranges.A logic-controlled shutdown pin that interfaces directly with microprocessors reduces the supply current to only 0.5A. The MAX662ACSA comes in 8-pin narrow SO and DIP packages.For higher-current flash memory programming solutions,refer to the data sheets for the MAX734 (120mA output current, guaranteed) and MAX732 (200mA output current,guaranteed) PWM, switch-mode DC-DC converters.Or, refer to the MAX761 data sheet for a 150mA, PFM switch-mode DC-DC converter that operates from inputs as low as 2V.

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.The MAX662ACSA provides a regulated 12V output voltage at 30mA from a 5V ±5% power supply, making it ideal for flash EEPROM programming applications. It uses internal charge pumps and external capacitors to generate +12V, eliminating inductors. Regulation of MAX662ACSA is provided by a pulse-skipping scheme that monitors the output voltage level and turns on the charge pumps when the output voltage begins to droop.