MAX8571 MAXIM [Maxim Integrated Products], MAX8571 Datasheet - Page 2

• Manufacturer Part Number: MAX8571
• Description: High-Efficiency LCD Boost with True Shutdown
• Manufacturer: MAXIM [Maxim Integrated Products]

ABSOLUTE MAXIMUM RATINGS
V
SW to GND .................................................-0.3V to (V
FB to GND (MAX8570/MAX8571/
OUT to GND (MAX8572/MAX8573/MAX8575) .......-0.3V to +30V
LX to GND ..............................................................-0.3V to +30V
I
High-Efficiency LCD Boost
with True Shutdown
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.
ELECTRICAL CHARACTERISTICS
(V
-40°C to +85°C, unless otherwise noted. Typical values are at T
2
LX
V
V
V
V
Line Regulation
Load Regulation
FB Regulation Voltage
FB Input Bias Current
OUT Regulation Voltage
OUT Input Bias Current
LX Voltage Range
LX Switch Current Limit (Note 2)
LX On-Resistance
LX Leakage Current
Maximum LX On-Time
Minimum LX Off-Time
Current-Limit Propagation Delay
SHDN Low Level (V
SHDN High Level (V
SHDN Leakage Current
CC
CC
MAX8574)...............................................-0.3V to (V
CC
CC
CC
CC
, I
, SHDN to GND ..................................................-0.3V to +6V
_______________________________________________________________________________________
CC
= V
Input Voltage Range
Undervoltage Lockout
Supply Current
Shutdown Current
..............................................................................600mA
SHDN
PARAMETER
= 3.6V, SW floating, V
IL
IH
)
)
V
SHDN = GND, V
Circuit of Figure 3, V
V
Circuit of Figure 3, V
T
T
T
T
V
MAX8571/MAX8573
MAX8570/MAX8572
MAX8574/MAX8575
MAX8571/MAX8573/MAX8574/MAX8575, I
MAX8570/MAX8572, I
V
V
V
2.7V ≤ V
4.2V ≤ V
2.7V ≤ V
FB
A
A
A
A
CC
CC
OUT
LX
FB
FB
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
= 1.3V (MAX8570/MAX8571/MAX8574) or V
= 28V
> 1V or V
= 0.25V or V
rising, 50mV typical hysteresis
= 2.7V to 5.5V
= 15V
CC
CC
CC
≤ 5.5V
≤ 5.5V
< 4.2V
OUT
CC
CC
CC
OUT
> 12.2V
+ 0.3V)
+ 0.3V)
= 5.5V
OUT
OUT
= 3.4V
CONDITIONS
LX
= 50mA
= 15V, I
= 15V, I
A
= +25°C.) (Note 1)
Continuous Power Dissipation (T
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
LOAD
LOAD
SOT23-6 (derate 8.7 mW/°C above +70°C).............695.7 mW
T
T
T
T
A
A
A
A
= 5mA,
= 0 to 5mA
= +25°C
= -40°C to +85°C
= +25°C
= -40°C to +85°C
LX
= 100mA
OUT
= 16V (MAX8572/MAX8573/MAX8575), T
1.2137
14.813
1.216
14.85
0.217
0.088
0.425
2.70
2.33
MIN
-50
0.8
4.0
1.5
1.4
-1
8
A
= +70°C)
1.226
0.241
0.101
0.484
TYP
0.05
0.05
0.01
0.05
2.5
0.1
0.1
2.4
0.9
1.5
25
15
11
55
-4
1
5
1.2383
15.187
1.236
15.15
0.267
0.108
0.540
MAX
5.50
2.65
+50
4.4
1.5
2.4
1.2
6.0
0.7
35
28
14
+1
1
2
UNITS
%/mA
%/V
µA
µA
nA
µA
µA
µA
µs
µs
ns
Ω
V
V
V
V
V
A
V
V
A
=