MAX1543ETP+ Maxim Integrated Products, MAX1543ETP+ Datasheet - Page 7

• Manufacturer Part Number: MAX1543ETP+
• Description: IC DC-DC CONV TFT-LCD 20-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1543ETP+

• Applications: Controller, TFT, LCD
• Voltage - Input: 2.6 ~ 5.5 V
• Number Of Outputs: 2
• Voltage - Output: 2.6 ~ 13 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
IN
120
100
80
60
40
20
0
= 3.3V, V
0.1
V
POWER-SUPPLY REJECTION RATIO
SUP
= 8V
1
MAIN
vs. FREQUENCY
-10
-20
-30
160
120
20
10
FREQUENCY (Hz)
80
40
0
0
10
= 8V, f
100
0
_______________________________________________________________________________________
OPERATIONAL AMPLIFIER FREQUENCY
V
A
V
A
R
SUP
V
1000pF
OUTPUT HIGH VOLTAGE vs. LOAD
SUP
V
L
= 1
= 1
RESPONSE FOR VARIOUS C
= 10kΩ
100
OSC
= 8V
= 8V
OPERATIONAL AMPLIFIER
2
= 1.2MHz, T
1k
FREQUENCY (Hz)
1k
4
I
OUT_
(mA)
10k
TFT LCD DC-to-DC Converter with
6
100pF
10k
A
= +25°C, unless otherwise noted.)
56pF
8
LOAD
Typical Operating Characteristics (continued)
15pF
500
450
400
350
300
250
200
150
100
50
0
100k
10
0
V
A
R
C
V
0.2
SUP
V
L
L
CM
= +1
= 10kΩ
= 10pF
SETTLING TIME vs. STEP SIZE
= 4V
OPERATIONAL AMPLIFIER
= 8V
0.4 0.6 0.8
STEP SIZE (V)
RISING EDGE
FALLING EDGE
1.0 1.2
Operational Amplifiers
1.4 1.6 1.8
100
80
60
40
20
160
120
0
80
40
0
1
0
2.0
OPERATIONAL AMPLIFIER OVERSHOOT
V
R
A
POS_ = 4V ±50mV
V
A
SUP
L
V
SUP
V
AC-COUPLED
OUTPUT LOW VOLTAGE vs. LOAD
= 10kΩ
= 1
= 1
200mA/div
500mA/div
100mV/div
= 8V
= 8V
OPERATIONAL AMPLIFIER
2
vs. LOAD CAPACITANCE
V
I
LOAD CAPACITANCE (pF)
MAIN
MAIN
I
L
4
I
OUT_
100
FALLING EDGE
(mA)
LOAD-TRANSIENT RESPONSE
RISING EDGE
6
STEP-UP REGULATOR
8
40µs/div
1000
10
L = 4.7µH
R
C
COMP
COMP
= 120kΩ
= 470pF
MAX1542 toc15
7
200mA
20mA