19-0459; Rev 1; 1/99
Low -Profile , 5V/12V or Adjus ta ble , Ste p-Up
DC-DC Conve rte rs for Fla s h Me m ory/PCMCIA Ca rds
/MAX607
Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
♦ Lowest-Height Circuit (1.35mm max)
♦ ±4% Regulated Output (5V, 12V, or Adjustable)
♦ Up to 180mA Load Current
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 e ntire c irc uit to fit in 0.25in2, ye t re ma in und e r
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,
♦ 1MHz Switching Frequency (MAX606)
♦ 1µA Logic-Controlled Shutdown
or adjustable from V to 12.5V. They can provide up to
180mA of output current at 5V.
IN
♦ 3V to 5.5V Input Voltage Range
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 outp ut c a p a c itors . The e ntire c irc uit fits in
0.25in2 and is less than 1.35mm high.
♦ Compact 8-Pin µMAX Package
The MAX607 switches at up to 500kHz, fitting Type 2
a nd 3 c a rd s , a s we ll a s ha nd -he ld d e vic e s whe re
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.
Ord e rin g In fo rm a t io n
PART
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
MAX606ESA
MAX606EUA
MAX607ESA
MAX607EUA
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.
8 µMAX
8 SO
8 µMAX
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.
________________________Ap p lic a t io n s
PCMCIA Cards
Memory Cards
Typ ic a l Op e ra t in g Circ u it
Single PCMCIA Slot Programming
Digital Cameras
INPUT
+4.5V TO +5.5V
Flash Memory Programming
Hand-Held Equipment
0.68µF 0.68µF
0.1µF
5µH
P in Co n fig u ra t io n
OUTPUT
IN
12V @ 90mA
LX
ON/OFF
SHDN
TOP VIEW
0.68µF
x 2
MAX606
PGND
OUT
FB
1
2
3
4
8
7
6
5
PGND
FB
LX
OUT
SS
MAX606
MAX607
GND
SHDN
IN
GND
SO/µMAX
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.