参数资料
型号: MAX1778EUG+
厂商: Maxim Integrated Products
文件页数: 16/39页
文件大小: 0K
描述: IC DCDC CONV MULTI OUT 24TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 62
应用: 转换器,TFT,LCD
输入电压: 2.7 V ~ 5.5 V
输出数: 5
输出电压: 2.7 V ~ 13 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 管件
MAX1778/MAX1880–MAX1885
Quad-Output TFT LCD DC/DC
Converters with Buffer
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V IN = +3.3V, SHDN = IN, V MAIN = V SUPP = V SUPN = V SUPB = V SUPL = 8V, BUF- = BUFOUT,
BUF+ = FLTSET = TGND = PGND = GND, T A = +25°C.)
4.50V
VCOM BUFFER
LARGE-SIGNAL RESPONSE
MAX1778 toc48
200mA
VCOM BUFFER
LOAD-TRANSIENT RESPONSE
MAX1778 toc49
500mA
VCOM BUFFER
LOAD-TRANSIENT RESPONSE
MAX1778 toc50
4.00V
A
0
A
0
A
3.50V
-200mA
4.2V
-500mA
4.5V
4.50V
4.00V
3.50V
10 μ s/div
A. V BUF + = 3.50V TO 4.50V, 0.5V/div
B. BUFOUT = BUF-, 0.5V/div
C BUF = 1 μ F, V SUPB = 8V
B
4.0V
3.8V
8.0V
4 μ s/div
A. I BUFOUT = 200mA PULSES, 200mA/div
B. BUFOUT = BUF-, 200mV/div
C. V MAIN = 8V, 50mV/div
V SUPB = V MAIN , BUF+ = GND, C BUF = 1 μ F
B
C
4.0V
3.5V
8.0V
4 μ s/div
A. I BUFOUT = 400mA PULSES, 500mA/div
B. BUFOUT = BUF-, 0.5V/div
C. V MAIN = 8V, 100mV/div
V SUPB = V MAIN , BUF+ = GND, C BUF = 1 μ F
B
C
VCOM BUFFER STARTUP
VCOM BUFFER STARTUP
4V
2V
0
4V
2V
0
8.1V
7.8V
MAX1778 toc51
100 μ s/div
A. RDY, 2V/div
B. BUFOUT = BUF-, C BUF = 1 μ F, 2V/div
C. V SUPB = V MAIN = 8V, I MAIN = 20mA, 200mV/div
BUF+ = GND
A
B
C
4V
2V
0
4V
2V
0
8.1V
7.8V
MAX1778 toc51
100 μ s/div
A. RDY, 2V/div
B. BUFOUT = BUF-, C BUF = 1 μ F, 2V/div
C. V SUPB = V MAIN = 8V, I MAIN = 20mA, 200mV/div
A
B
C
BUF+ = GND
16
Maxim Integrated
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