Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
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.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TQFN
Junction-to-Ambient Thermal Resistance (θ
JA
)..........41°C/W
Junction-to-Case Thermal Resistance (θ
JC
).................6°C/W
Note 1:
µMAX
Junction-to-Ambient Thermal Resistance (θ
JA
).....206.3°C/W
Junction-to-Case Thermal Resistance (θ
JC
)...............42°C/W
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to
www.maxim-ic.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(V
IN
= 2V for MAX1595_ _ _33, V
IN
= 3V for MAX1595_ _ _50, C
IN
= 1µF, C
X
= 0.22µF, C
OUT
= 1µF, T
A
= -40° to +85°C, unless otherwise
noted. Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER
Input Voltage Range
Input Undervoltage Lockout
Threshold
Input Undervoltage Lockout
Hysteresis
0 < I
LOAD
< 125mA,
V
IN
= +3.0V
Output Voltage
V
OUT
T
A
= 0°C to +85°C
T
A
= -40°C to +85°C
4.85
4.80
3.20
3.16
3.20
3.16
220
240
0.85
1.0
3.33
3.33
SYMBOL
V
IN
CONDITIONS
MIN
1.8
1.40
1.60
40
5.05
5.15
5.20
3.40
3.44
3.40
3.44
320
350
1.15
5
0.6
1.6
0.1
µA
MHz
µA
V
V
µA
V
TYP
MAX
5.5
1.72
UNITS
V
V
mV
0 < I
LOAD
< 75mA, V
IN
T
A
= 0°C to +85°C
= +2.0V
T
A
= -40°C to +85°C
0 < I
LOAD
< 30mA, V
IN
T
A
= 0°C to +85°C
= +1.8V
T
A
= -40°C to +85°C
No-Load Input Current
Switching Frequency
Shutdown Supply Current
SHDN
Input Voltage Low
SHDN
Input Voltage High
SHDN
Input Leakage Current
I
Q
f
OSC
I
SHDN
V
INL
V
INH
V
IN
= +2.0V, MAX1595_ _ _33
V
IN
= +3.0V, MAX1595_ _ _50
I
LOAD
> 20mA, V
OUT
> V
IN
V
SHDN
= 0V, V
IN
= +5.5V, V
OUT
= 0V
V
IN
= 2.0V to 5.5V
V
IN
= 2.0V to 5.5V
Note 2:
Specifications to -40°C are guaranteed by design, not production tested.
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