MAX1779EUE+ Maxim Integrated Products, MAX1779EUE+ Datasheet - Page 7
![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
(Circuit of Figure 5, V
100mA
50mA
5.0V
4.9V
4.9V
5.0V
5.1V
0
0
LOAD TRANSIENT WITHOUT INTEGRATOR
LOAD TRANSIENT WITHOUT INTEGRATOR
A. V
B. V
INTG = REF,
A. V
B. I
INTG = REF, FIGURE 5
MAIN
(L = 10μH, 500μs PULSE)
(L = 33μH, 500μs PULSE)
MAIN
MAIN
MAIN
= 5V, 50mV/div
= 5mA to 50mA, 25mA/div
= 5V, 50mV/div
= 10mA to 100mA, 50mA/div
FIGURE 6
Low-Power Triple-Output TFT LCD DC-DC
100μs/div
100μs/div
_______________________________________________________________________________________
IN
= +3.3V, T
A
MAX1779-16
MAX1779-19
= +25°C, unless otherwise noted.)
B
A
B
A
400mA
200mA
100mA
200mA
5.0V
5.0V
5.1V
4.9V
Typical Operating Characteristics (continued)
0
0
0
LOAD TRANSIENT WITHOUT INTEGRATOR
A. V
B. I
C. I
INTG = REF, FIGURE 6
A. V
B. I
FIGURE 5
L
MAIN
MAIN
MAIN
, 200mA/div
MAIN
(L = 10μH, 5μs PULSE)
(L = 33μH, 5μs PULSE)
= 10mA to 100mA, 100mA/div
= 5V, 100mV/div
LOAD TRANSIENT
= 20mA to 200mA, 100mA/div
= 5V, 50mV/div
10μs/div
10μs/div
MAX1779-17
MAX1779-20
A
B
C
A
B
100mA
500mA
5.1V
4.9V
5V
5V
2V
3V
0
0
0
A. V
B. I
FIGURE 5
A. V
B. V
C. I
FIGURE
MAIN
L
(L = 33μH, 500μs PULSE)
MAIN
SHDN
MAIN
, 500 mA/div
STARTUP WAVEFORM
Converter
6, R
LOAD TRANSIENT
= 10mA to 100mA, 50mA/div
= 5V, 50mV/div
= 0 to 2V, 2V/div
= 5V, 1V/div
MAIN
(L = 10μH)
100μs/div
200μs/div
= 100Ω
MAX1779-18
MAX1779-21
7
B
C
A
B
A