User Manual

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 [phone]
© 1995 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
MAX1649/MAX1651
5V/3.3V or Adjustable, High-Efficiency,
Low-Dropout, Step-Down DC-DC Controllers
________________________________________________________Package Information
DIM

A
A1
A2
A3
B
B1
C
D1
E
E1
e
eA
eB
L
MIN
–
0.015
0.125
0.055
0.016
0.045
0.008
0.050
0.600
0.525
0.100
0.600
–
0.120
MAX
0.200
–
0.175
0.080
0.020
0.065
0.012
0.090
0.625
0.575
–
–
0.700
0.150
MIN
–
0.38
3.18
1.40
0.41
1.14
0.20
1.27
15.24
13.34
2.54
15.24
–
3.05
MAX
5.08
–
4.45
2.03
0.51
1.65
0.30
2.29
15.88
14.61
–
–
17.78
3.81
INCHES MILLIMETERS
Plastic DIP
PLASTIC
DUAL-IN-LINE
PACKAGE
(0.600 in.)
DIM

D
D
D
PKG.

P
P
P
MIN
1.230
1.430
2.025
MAX
1.270
1.470
2.075
MIN
31.24
36.32
51.44
MAX
32.26
37.34
52.71
INCHES MILLIMETERS
PINS
24
28
40
C
A
A2
E1
D
E
eA
eB
A3
B1
0°-15°
B
A1
L
D1
e
21-0044A
DIM

A
A1
B
C
E
e
H
L
MIN
0.053
0.004
0.014
0.007
0.150

0.228
0.016
MAX
0.069
0.010
0.019
0.010
0.157

0.244
0.050
MIN
1.35
0.10
0.35
0.19
3.80

5.80
0.40
MAX
1.75
0.25
0.49
0.25
4.00

6.20
1.27
INCHES MILLIMETERS
21-0041A
Narrow SO
SMALL-OUTLINE
PACKAGE
(0.150 in.)
DIM

D
D
D
MIN
0.189
0.337
0.386
MAX
0.197
0.344
0.394
MIN
4.80
8.55
9.80
MAX
5.00
8.75
10.00
INCHES MILLIMETERS
PINS
8
14
16
1.270.050
L
0°-8°
HE
D
e
A
A1
C
0.101mm
0.004in.
B