Rainbow Electronics MAX1595 User Manual
Page 2
MAX1595
Regulated 3.3V/5.0V Step-Up/Step-Down
Charge Pump
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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 1)
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.
IN, OUT, AOUT to GND............................................-0.3V to +6V
SHDN to PGND ........................................................-0.3V to +6V
PGND to GND .......................................................-0.3V to +0.3V
CXN to PGND.....................-0.3V to (Lower of IN + 0.8V or 6.3V)
CXP to GND ................................-0.8V to (Higher of OUT + 0.8V
or IN + 0.8V but not greater than 6V)
Continuous Output Current ...............................................150mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 4.5mW/°C above +70°C) ............362mW
12-Pin Thin QFN (derate 18.5mW/°C
above +70°C)............................................................1481mW
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
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
V
IN
1.8
5.5
V
Input Undervoltage Lockout
Threshold
1.40
1.60
1.72
V
Input Undervoltage Lockout
Hysteresis
40
mV
T
A
= 0 to +85
°C
4.85
5.05
5.15
0 < I
L OA D
< 125m A,
V
I N
= + 3.0V
T
A
= -40
°C to +85°C
4.80
5.20
T
A
= 0 to +85
°C
3.20
3.33
3.40
0 < I
LOAD
< 75mA, V
IN
= +2.0V
T
A
= -40
°C to +85°C
3.16
3.44
T
A
= 0 to +85
°C
3.20
3.33
3.40
Output Voltage
V
OUT
0 < I
LOAD
< 30mA, V
IN
= +1.8V
T
A
= -40
°C to +85°C
3.16
3.44
V
V
IN
= +2.0V, MAX1595_ _ _33
220
320
No-Load Input Current
I
Q
V
IN
= +3.0V, MAX1595_ _ _50
240
350
µA
Switching Frequency
f
OSC
I
L OA D
> 20m A, V
OU T
> V
IN
0.85
1.0
1.15
MHz
Shutdown Supply Current
I
SHDN
SHDN = 0, V
IN
= +5.5V, V
OUT
= 0
5
µA
SHDN Input Voltage Low
V
IN L
V
IN
= 2.0V to 5.5V
0.6
V
SHDN Input Voltage High
V
IN H
V
IN
= 2.0V to 5.5V
1.6
V
SHDN Input Leakage Current
0.1
µA
Note 1: Specifications to -40
°C are guaranteed by design, not production tested.