MAX607

Features:

Lowest-Height Circuit (1.35mm max)
±4% Regulated Output (5V, 12V, or Adjustable)
Up to 180mA Load Current
1MHz Switching Frequency (MAX606)
1A Logic-Controlled Shutdown
3V to 5.5V Input Voltage Range
Compact 8-Pin MAX Package


Application

PCMCIA Cards
Memory Cards
Single PCMCIA Slot Programming
Digital Cameras
Flash Memory Programming
Hand-Held Equipment


Pinout




Specifications

IN to GND .................................................................-0.3V to +6V
LX, OUT to GND.......................................................-0.3V to +15V
PGND to GND......................................................................±0.3V
FB to GND ..................................................-0.3V to (VCC + 0.3V)
SS, SHDN to GND .....................................................-0.3V to +6V
Continuous Power Dissipation (TA = +70°C)
  MAX (derate 4.10mW/°C above +70°C) ....................330mW
  SO (derate 5.88mW/°C above +70°C).........................471mW
Operating Temperature Range ..........................-40°C to +85°C
Storage Temperature.......................................................+160°C
Lead Temperature (soldering, 10sec) .............................+300°C


Description

The MAX606/MAX607 are the smallest CMOS, step-up DC-DC converters available for flash memory and PC(PCMCIA) cards. They switch at up to 1MHz, permitting the entire circuit to fit in 0.25in2, yet remain under 1.35mm high to fit Type 1, 2, and 3 card standards.These devices operate from a 3V to 5.5V input and provide a ±4% accurate output that is preset to 5V or 12V,or adjustable from VIN to 12.5V. They can provide up to 180mA of output current at 5V.

The MAX607 switches at up to 1MHz and fits Type 1(thinnest standard) flash memory and PCMCIA cards. It uses a thin, 1.19mm high, 5H inductor and small, 0.68F output capacitors. The entire circuit fits in 0.25in2 and is less than 1.35mm high.

The MAX607 switches at up to 500kHz, fitting Type 2 and 3 cards, as well as hand-held devices where height requirements are not as critical. It uses less board area than the MAX606, fitting in 0.16in2, but requires 2.5mm of height. It also has a lower no-load supply current than the MAX606.

Both devices use a unique control scheme that optimizes efficiency over all input and output voltages. Other features include 1A logic-controlled shutdown and usercontrolled soft-start to minimize inrush currents.

The MAX606/MAX607 come in 8-pin MAX and SO packages. The MAX package uses half the board area of a standard 8-pin SO and has a maximum height of just 1.11mm.