MAX1748EUE+T Maxim Integrated Products, MAX1748EUE+T Datasheet - Page 6

• Manufacturer Part Number: MAX1748EUE+T
• Description: IC DC-DC CONV TRPL LCD 16-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1748EUE+T

• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Triple-Output TFT-LCD
DC-DC Converters
(Circuit of Figure 5, V
6
-10
-11
-3
-4
-5
-6
-7
-8
-9
24
22
20
18
16
14
12
10
MAXIMUM POSITIVE CHARGE-PUMP OUTPUT
8
_______________________________________________________________________________________
V
V
V
OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
5
5
MAIN
NEG
POS
MAXIMUM NEGATIVE CHARGE-PUMP
V
POS
I
I
POS
NEG
= -5V, I
= 15V, I
VOLTAGE vs. SUPPLY VOLTAGE
= 10V, I
= 22V
6
6
= 1mA
= 1mA
RIPPLE WAVEFORMS
NEG
POS
I
NEG
7
MAIN
7
I
POS
= 10mA,
= 10mA
= 10mA
= 200mA,
V
= 10mA
V
8
8
1μs/div
SUPN
SUPP
IN
I
(V)
I
(V)
NEG
POS
9
9
= 3.3V, T
= 20mA
= 20mA
10
V
10
NEG
MAX1748/8726 toc13
= -10mA
11
11
A
= +25°C, unless otherwise noted.)
12
12
V
10mV/div
V
10mV/div
V
10mV/div
MAIN
NEG
POS
15.3
15.2
15.1
15.0
14.9
14.8
14.7
14.6
14.5
14.4
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
Typical Operating Characteristics (continued)
2.5
V
R
0
MEASURED FROM THE
FALLING EDGE OF LX
V
I
IN
MAIN
MAIN
MAIN
POSITIVE CHARGE-PUMP OUTPUT
= 3.3V, V
2
= 500Ω TO 50Ω (20mA TO 200mA)
LOAD-TRANSIENT RESPONSE
VOLTAGE vs. LOAD CURRENT
= 100mA
3.0
= 10V
SWITCHING FREQUENCY
4
MAIN
vs. INPUT VOLTAGE
V
SUPN
6
3.5
INPUT VOLTAGE (V)
= 10V,
= 8V
8
100μs/div
I
POS
4.0
10
(mA)
12 14 16 18 20
4.5
V
V
SUPN
SUPN
MAX1748/8726 toc14
5.0
= 12V
= 10V
5.5
I
200mA/div
I
500mA/div
V
200mV/div
MAIN
LX
MAIN
1.254
1.252
1.250
1.248
1.246
1.244
100
90
80
70
60
50
40
V
R
IN
MAIN
0
0
= 3.3V, V
POSITIVE CHARGE-PUMP EFFICIENCY
V
IN
= 500Ω TO 50Ω (20mA TO 200mA)
LOAD-TRANSIENT RESPONSE
2
vs. REFERENCE LOAD CURRENT
5
= 3.3V
WITHOUT INTEGRATOR
10
MAIN
4
REFERENCE VOLTAGE
vs. LOAD CURRENT
15
= 10V, INTG = REF,
6
100μs/div
20
8
I
I
POS
REF
V
V
V
10
25
SUPP
SUPP
SUPP
(μA)
(mA)
30
12 14 16 18 20
= 8V
= 10V
= 12V
MAX1748/8726 toc15
35 40 45 50
I
200mA/div
I
500mA/div
V
200mV/div
MAIN
LX
MAIN