MAX1747EUP Maxim Integrated Products, MAX1747EUP Datasheet - Page 6

• Manufacturer Part Number: MAX1747EUP
• Description: Charge Pumps
• Manufacturer: Maxim Integrated Products

Specifications of MAX1747EUP

• Function: Step Up, Step Down
• Output Voltage: 4.5 V to 5.5 V, +/- 35 V
• Output Current: 200 mA
• Maximum Operating Temperature: + 85 C
• Package / Case: TSSOP-20
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Triple Charge-Pump TFT LCD
DC-DC Converter
(Circuit of Figure 1, V
6
1.15
1.10
1.05
1.00
0.95
0.90
0.85
_______________________________________________________________________________________
-10
-14
-18
-22
16
14
12
10
-2
-6
8
6
4
2
0
-40
0
OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
3
MAXIMUM NEGATIVE CHARGE-PUMP
V
NEG(NOMINAL)
I
vs. SWITCHING FREQUENCY
NEG
NO-LOAD SUPPLY CURRENT
-15
SWITCHING FREQUENCY
5
0.5
= 1mA
vs. TEMPERATURE
TEMPERATURE (°C)
FREQUENCY (MHz)
= -20V
I
10
NEG
7
IN
V
SUPN
= 10mA
1.0
= V
(V)
35
SUPM
9
R
FREQ
1.5
V
= +3.3V, T
60
ON
11
= 120kΩ
= 3.3V
2.0
85
13
A
= +25°C, unless otherwise noted.)
100
100
2.0
1.6
1.2
0.8
0.4
90
80
70
60
50
40
30
20
Typical Operating Characteristics (continued)
90
80
70
60
50
40
30
20
0
0
0
0
NEGATIVE LOW-POWER CHARGE-PUMP
POSITIVE LOW-POWER CHARGE-PUMP
V
NEG
EFFICIENCY vs. LOAD CURRENT
EFFICIENCY vs. LOAD CURRENT
= -7V
10
SWITCHING FREQUENCY
V
10
10
SUPP
V
= 6V
SUPN
20
vs. I
I
I
SHDN
I
NEG
POS
= 5V
V
20
20
SUPP
SHDN
(mA)
(mA)
(mA)
V
SUPP
30
= 5V
V
= 7V
SUPN
V
30
30
V
SUPN
POS
40
= 7V
= 12V
= 6V
50
40
40
12.0
11.5
11.0
10.5
10.0
12.2
12.1
12.0
11.9
11.8
11.7
11.6
11.5
11.4
-6.3
-6.4
-6.5
-6.6
-6.7
-6.8
-6.9
-7.0
-7.1
9.5
9.0
-40
0
0
NEGATIVE LOW-POWER CHARGE-PUMP
POSITIVE LOW-POWER CHARGE-PUMP
OUTPUT VOLTAGE vs. LOAD CURRENT
OUTPUT VOLTAGE vs. LOAD CURRENT
NO-LOAD SUPPLY CURRENT
-15
10
10
vs. TEMPERATURE
TEMPERATURE (°C)
V
SUPP
10
V
I
I
POS
NEG
SUPN
= 5V
20
20
(mA)
(mA)
V
= 6V
SUPN
35
V
SUPP
= 5V
R
FREQ
V
V
SUPN
SUPP
30
30
= 6V
V
60
ON
= 120kΩ
= 7V
= 7V
= 3.3V
85
40
40