max738a Maxim Integrated Products, Inc., max738a Datasheet - Page 2

• Manufacturer Part Number: max738a
• Description: 5v, Step-down, Current-mode Pwm Dc-dc Converters
• Manufacturer: Maxim Integrated Products, Inc.

ABSOLUTE MAXIMUM RATINGS
5V, Step-Down,
Current-Mode PWM DC-DC Converters
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 3, V+ = 9V for the MAX730A, V+ = 12V for the MAX738A/MAX744A, I
unless otherwise noted.)
Pin Voltages
Peak Switch Current (I
Reference Current (I
Continuous Power Dissipation (T
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
Output Voltage
Input Voltage
Range
Line Regulation
16-Pin Wide SO (derate 9.52mW/°C above +70°C) .....762mW
V+ (MAX730A) ......................................................+12V, -0.3V
V+ (MAX738A/MAX744A) .....................................+18V, -0.3V
LX (MAX730A) .................................(V+ - 12V) to (V+ + 0.3V)
LX (MAX738A/MAX744A) ................(V+ - 21V) to (V+ + 0.3V)
OUT .................................................................................±25V
SS, CC, SHDN .........................................-0.3V to (V+ + 0.3V)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C)...727mW
8-Pin SO (derate 5.88mW/°C above +70°C) ...............471mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C) .......640mW
PARAMETER
_______________________________________________________________________________________
REF
V+ = 6.0V
to 11.0V
V+ = 6.0V
to 16.0V
V+ = 10.2V to 16.0V,
0mA < I
V+ = 9.0V
to 16.0V
V+ = 5.2V to 11.0V
V+ = 6.0V to 16.0V
LX
) ...................................................2.5mA
) ........................................................2A
LOAD
A
CONDITIONS
= +70°C)
0mA < I
MAX730AC
0mA < I
MAX730AE
0mA < I
MAX730AM
0mA < I
MAX738AC/AE
0mA < I
MAX738AM
0mA < I
MAX744AC/AE
0mA < I
MAX744AM
< 750mA
0mA < I
MAX744AC/AE
0mA < I
MAX744AM
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
< 450mA,
< 450mA,
< 300mA,
< 450mA,
< 350mA,
< 500mA,
< 375mA,
< 750mA,
< 600mA,
MIN
4.75 5.00
5.2
MAX730A
TYP
0.15
Operating Temperature Ranges:
Junction Temperatures:
Storage Temperature Range ............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
MAX7_ _AC_ _....................................................0°C to +70°C
MAX7_ _AE_ _ .................................................-40°C to +85°C
MAX7_ _AMJA ..............................................-55°C to +125°C
MAX7_ _AC_ _/AE_ _...................................................+150°C
MAX7_ _AMJA.............................................................+175°C
MAX
5.25
11.0
MIN
4.75 5.00
4.75 5.00
6.0
LOAD
MAX738A
0.15
TYP
= 0mA, T
MAX
5.25
5.25
16.0
A
= T
MIN
4.75 5.00
4.75 5.00
6.0
MIN
MAX744A
to T
TYP
0.15
MAX
MAX
,
5.25
5.25
16.0
UNITS
%/V
V
V