MAX606 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Low-Profile, 5V/12V or Adjustable, Step-Up DC-DC Converters for Flash Memory/PCMCIA Cards

19-0459; Rev 1; 1/99
EVFAOLLULAOTWIOSNDKAITTAMSAHNEUEATL
Low-Profile, 5V/12V or Adjustable, Step-Up
DC-DC Converters for Flash Memory/PCMCIA Cards
General 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 pro-
vide a ±4% accurate output that is preset to 5V or 12V,
or adjustable from V_IN to 12.5V. They can provide up to
180mA of output current at 5V.
The MAX606 switches at up to 1MHz and fits Type 1
(thinnest standard) flash memory and PCMCIA cards. It
uses a thin, 1.19mm high, 5µH inductor and small,
0.68µF 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 fea-
tures include 1µA logic-controlled shutdown and user-
controlled soft-start to minimize inrush currents.
The MAX606/MAX607 come in 8-pin µMAX and SO
packages. The µMAX package uses half the board
area of a standard 8-pin SO and has a maximum height
of just 1.11mm.
________________________Applications
PCMCIA Cards
Memory Cards
Single PCMCIA Slot Programming
Digital Cameras
Flash Memory Programming
Hand-Held Equipment
Pin Configuration
TOP VIEW
PGND 1
FB 2
SHDN 3
IN 4
MAX606
MAX607
8 LX
7 OUT
6 SS
5 GND
SO/µMAX
____________________________Features
o Lowest-Height Circuit (1.35mm max)
o ±4% Regulated Output (5V, 12V, or Adjustable)
o Up to 180mA Load Current
o 1MHz Switching Frequency (MAX606)
o 1µA Logic-Controlled Shutdown
o 3V to 5.5V Input Voltage Range
o Compact 8-Pin µMAX Package
PART
MAX606ESA
MAX606EUA
MAX607ESA
MAX607EUA
Ordering Information
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 SO
8 µMAX
8 SO
8 µMAX
Typical Operating Circuit
INPUT
+4.5V TO +5.5V
0.68µF 0.68µF 0.1µF
5µH
ON/OFF
IN
SHDN
LX
FB ^MAX606 OUT
GND
PGND
OUTPUT
12V @ 90mA
0.68µF
x2
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone [phone].
For small orders, phone [phone].