MAX8740 Maxim Integrated Products, MAX8740 Datasheet - Page 3

• Manufacturer Part Number: MAX8740
• Description: TFT-LCD Step-Up DC-DC Converter
• Manufacturer: Maxim Integrated Products

ELECTRICAL CHARACTERISTICS (continued)
(V
ELECTRICAL CHARACTERISTICS
(V
Note 1: -40°C specifications are guaranteed by design, not production tested.
CONTROL INPUTS
SHDN, FREQ Input Low Voltage
SHDN, FREQ Input High Voltage
SHDN, FREQ Input Hysteresis
FREQ Pulldown Current
SHDN Input Current
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Input Voltage Range
Output Voltage Range
IN Quiescent Current
IN Shutdown Current
ERROR AMPLIFIER
FB Regulation Voltage
FB Line Regulation
Transconductance
OSCILLATOR
Frequency
n-CHANNEL MOSFET
Current Limit
Current-Sense Transresistance
CONTROL INPUTS
SHDN, FREQ Input Low Voltage
SHDN, FREQ Input High Voltage
IN
IN
= V
= V
SHDN
SHDN
PARAMETER
PARAMETER
= 3V, T
= 3V, T
_______________________________________________________________________________________
A
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
= 0°C to +85°C. Typical values are at T
V
V
V
SHDN = GND
V
18V < V
V
V
SHDN = GND
Level to produce V
Level to produce V
FREQ = GND
FREQ = IN
V
V
V
TFT-LCD Step-Up DC-DC Converter
IN
IN
IN
OUT
FB
FB
FB
IN
IN
= 2.6V to 5.5V
= 2.6V to 5.5V
= 2.6V to 5.5V
= 2.6V to 5.5V
= 2.6V to 5.5V
= 1.3V, not switching
= 1.0V, switching, FREQ = GND
= 1V, 71% duty cycle
< 18V
OUT
< 28V
COMP
COMP
CONDITIONS
CONDITIONS
= 1.24V
= 1.24V, V
A
= +25°C, unless otherwise noted.)
IN
= 2.6V to 5.5V
1.215
0.7 x
0.7 x
MIN
MIN
0.09
V
100
490
900
2.3
V
2.6
4.0
3.9
IN
IN
0.001
0.1 x
TYP
TYP
V
6.0
IN
MAX
0.3 x
1.260
MAX
1600
0.3 x
0.44
0.15
0.25
V
330
770
9.5
V
5.5
5.5
5.3
28
10
1
5
IN
IN
UNITS
UNITS
%/V
kHz
mA
V/A
µA
µA
µA
µS
V
V
V
V
V
V
A
V
V
3