Step-down dc-dc converters, Chip topography – Rainbow Electronics MAX653 User Manual
Page 12
MAX639/MAX640/MAX653
5V/3.3V/3V/Adjustable, High-Efficiency,
Low I
Q
, Step-Down DC-DC Converters
_Ordering Information (continued)
________________________________________________________Package Information
PART
TEMP. RANGE
PIN-PACKAGE
MAX640
CPA
0°C to +70°C
8 Plastic DIP
MAX640CSA
0°C to +70°C
8 SO
MAX640C/D
0°C to +70°C
Dice*
MAX640ESA
-40°C to +85°C
8 SO
MAX640EPA
-40°C to +85°C
8 Plastic DIP
MAX640MJA
-55°C to +125°C
8 CERDIP
MAX653
CPA
0°C to +70°C
8 Plastic DIP
MAX653CSA
0°C to +70°C
8 SO
MAX653C/D
0°C to +70°C
Dice*
MAX653EPA
-40°C to +85°C
8 Plastic DIP
MAX653ESA
-40°C to +85°C
8 SO
MAX653MJA
-55°C to +125°C
8 CERDIP
* Contact factory for dice specifications.
___________________Chip Topography
VFB
V+
LBO
VOUT
SHDN
GND
0.083"
(2.108mm)
0.072"
(1.828mm)
LBI
LX
TRANSISTOR COUNT: 221
SUBSTRATE CONNECTED TO V+
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1997 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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