MAX1779EUE+ Maxim Integrated Products, MAX1779EUE+ Datasheet - Page 5
![IC DC-DC CONV TRPL LCD 16-TSSOP](/photos/6/56/65666/175-16-tssop_sml.jpg)
MAX1779EUE+
Manufacturer Part Number
MAX1779EUE+
Description
IC DC-DC CONV TRPL LCD 16-TSSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX1779EUE.pdf
(18 pages)
Specifications of MAX1779EUE+
Applications
Converter, TFT, LCD
Voltage - Input
2.7 ~ 5.5 V
Number Of Outputs
3
Voltage - Output
2.7 ~ 13 V
Operating Temperature
0°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Mounting Style
SMD/SMT
Duty Cycle (max)
92 %
Efficiency
91 %
Input / Supply Voltage (max)
5.5 V
Input / Supply Voltage (min)
2.7 V
Load Regulation
0.1 %
Maximum Operating Temperature
+ 85 C
Maximum Power Dissipation
755 mW
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Output Voltage
13 V
Supply Current
0.5 mA
Switching Frequency
250 KHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
ELECTRICAL CHARACTERISTICS (continued)
(V
unless otherwise noted.) (Note 1)
Note 1: Specifications to -40°C are guaranteed by design, not production tested.
(Circuit of Figure 5, V
LOGIC SIGNALS
SHDN Input Low Voltage
SHDN Input High Voltage
SHDN Input Current
RDY Output Low Voltage
RDY Output High Leakage
5.02
5.01
5.00
4.99
4.98
IN
100
90
80
70
60
50
MAIN OUTPUT VOLTAGE vs. LOAD CURRENT
= +3.0V, SHDN = IN, V
MAIN STEP-UP CONVERTER EFFICIENCY
0
0
PARAMETER
50
V
(L = 33μH, 5V OUTPUT)
(L = 10μH, 5V OUTPUT)
IN
50
vs. LOAD CURRENT
= +3.0V
100
V
IN
= +3.0V
Low-Power Triple-Output TFT LCD DC-DC
I
I
MAIN
MAIN
_______________________________________________________________________________________
IN
100
150
(mA)
(mA)
= +3.3V, T
200
SUPP
V
IN
150
V
IN
= +4.2V
FIGURE 6
= +4.2V
FIGURE 5
250
= V
A
SYMBOL
= +25°C, unless otherwise noted.)
SUPN
I
200
300
SHDN
= +10V, TGND = PGND = GND, C
10.04
10.02
10.00
0.25V hysteresis (typ)
I
V
9.98
9.96
SINK
100
90
80
70
60
50
RDY
MAIN OUTPUT VOLTAGE vs. LOAD CURRENT
MAIN STEP-UP CONVERTER EFFICIENCY
0
0
= 2mA
= +13V
V
IN
V
(L = 33μH, 10V OUTPUT)
= +3.3V
(L = 10μH, 5V OUTPUT)
IN
50
vs. LOAD CURRENT
= +3.0V
50
CONDITIONS
I
I
MAIN
MAIN
100
(mA)
(mA)
Typical Operating Characteristics
100
V
V
IN
IN
150
= +5.0V
= +4.2V
REF
FIGURE 6
FIGURE 5
= 0.22µF, C
200
150
5.02
5.01
5.00
4.99
4.98
100
INTG
90
80
70
60
50
MAIN OUTPUT VOLTAGE vs. LOAD CURRENT
MIN
MAIN STEP-UP CONVERTER EFFICIENCY
0
2.1
0
= 2200pF, T
50
V
IN
(L = 33μH, 10V OUTPUT)
V
(L = 33μH, 5V OUTPUT)
Converter
= +3.3V
IN
vs. LOAD CURRENT
= +3.0V
100
50
I
I
MAIN
MAIN
A
150
= -40°C to +85°C,
(mA)
(mA)
MAX
0.9
0.5
1
1
100
200
V
V
IN
IN
= +4.2V
= +5.5V
FIGURE 5
FIGURE 5
250
UNITS
μA
μA
V
V
V
150
300
5