参数资料
型号: MAX1543ETP+
厂商: Maxim Integrated Products
文件页数: 7/20页
文件大小: 0K
描述: IC DC-DC CONV TFT-LCD 20-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
应用: 控制器,TFT LCD
输入电压: 2.6 V ~ 5.5 V
输出数: 2
输出电压: 2.6 V ~ 13 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-WQFN 裸露焊盘
供应商设备封装: 20-TQFN-EP(5x5)
包装: 管件
TFT LCD DC-to-DC Converter with
Operational Amplifiers
Typical Operating Characteristics (continued)
(V IN = 3.3V, V MAIN = 8V, f OSC = 1.2MHz, T A = +25 ° C, unless otherwise noted.)
OPERATIONAL AMPLIFIER FREQUENCY
RESPONSE FOR VARIOUS C LOAD
OPERATIONAL AMPLIFIER OVERSHOOT
vs. LOAD CAPACITANCE
20
10
100pF
100
80
V SUP = 8V
R L = 10k ?
A V = 1
POS_ = 4V ± 50mV
RISING EDGE
1000pF
0
56pF
60
-10
-20
-30
V SUP = 8V
A V = 1
R L = 10k ?
15pF
40
20
0
FALLING EDGE
100
1k
10k
100k
1
100
1000
FREQUENCY (Hz)
OPERATIONAL AMPLIFIER
OUTPUT HIGH VOLTAGE vs. LOAD
LOAD CAPACITANCE (pF)
OPERATIONAL AMPLIFIER
OUTPUT LOW VOLTAGE vs. LOAD
160
V SUP = 8V
160
V SUP = 8V
120
80
40
0
A V = 1
120
80
40
0
A V = 1
0
2
4
6
8
10
0
2
4
6
8
10
I OUT_ (mA)
I OUT_ (mA)
120
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
500
OPERATIONAL AMPLIFIER
SETTLING TIME vs. STEP SIZE
STEP-UP REGULATOR
LOAD-TRANSIENT RESPONSE
MAX1542 toc15
100
80
60
450
400
350
300
250
V SUP = 8V
A V = +1
R L = 10k ?
C L = 10pF
V CM = 4V
RISING EDGE
FALLING EDGE
I MAIN
200mA/div
I L
500mA/div
200mA
20mA
200
40
150
V MAIN
AC-COUPLED
20
0
V SUP = 8V
0.1 1
10
100
1k
10k
100
50
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
100mV/div
40 μ s/div
L = 4.7 μ H
R COMP = 120k ?
C COMP = 470pF
FREQUENCY (Hz)
STEP SIZE (V)
_______________________________________________________________________________________
7
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