beautypg.com

Step-down dc-dc converters, Chip topography – Rainbow Electronics MAX653 User Manual

Page 12

background image

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.

SOICN.EPS