参数资料
型号: MAX8739ETP+
厂商: Maxim Integrated Products
文件页数: 6/19页
文件大小: 0K
描述: IC DC/DC CONV W/OPAMP 20TQFN-EP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
应用: 转换器,TFT,LCD
输入电压: 1.8 V ~ 5.5 V
输出数: 1
输出电压: 1.8 V ~ 13 V
工作温度: 0°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-DC Converter with
Operational Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 2.5V, V SUP = 10V, V SRC = 28V, FREQ = CTL = IN, PGND = AGND = 0, T A = -40°C to +85°C , unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
POSITIVE GATE-DRIVER TIMING AND CONTROL SWITCHES
DEL Capacitor Charge Current
During startup, V DEL = 1V
4
6
μA
DEL Turn-On Threshold
CTL Input-Low Voltage
V IN = 1.8V to 5.5V
1.178
1.302
0.6
V
V
CTL Input-High Voltage
SRC Input-Voltage Range
V IN = 1.8V to 2.4V
V IN = 2.4V to 5.5V
1.4
2.0
28
V
V
SRC Input Current
DRN Input Current
SRC-to-COM Switch On-
Resistance
DRN-to-COM Switch On-
Resistance
V DRN = 8V, CTL = AGND, V DEL = 1.5V
V DRN = 8V, CTL = IN, V DEL = 1.5V
V DRN = 8V, CTL = AGND, V DEL = 1.5V
V DEL = 1.5V, CTL = IN
V DEL = 1.5V, CTL = AGND
30
180
150
30
60
μA
μA
?
?
Note 1: Specifications to -40°C are guaranteed by design, not production tested.
Typical Operating Characteristics
(Circuit of Figure 1, V IN = 2.5V, V MAIN = 8V, FREQ = IN, T A = +25°C, unless otherwise noted.)
100
STEP-UP REGULATOR EFFICIENCY
vs. LOAD CURRENT
100
STEP-UP REGULATOR EFFICIENCY
vs. LOAD CURRENT
0.5
STEP-UP REGULATOR
LOAD REGULATION
90
80
V IN = 5V
90
80
V IN = 5V
0
70
70
V IN = 3.3V
-0.5
60
V IN = 3.3V
60
V IN = 1.8V
50
40
50
40
V IN = 1.8V
-1.0
V IN = 5V
30
V IN = 1.8V
30
-1.5
V IN = 3.3V
20
10
0
f SW = 1.2MHz
V OUT = 8V
L = 3.0 μ H
20
10
0
f SW = 600MHz
V OUT = 8V
L = 6.2 μ H
-2.0
-2.5
f SW = 1.2MHz
V OUT = 8V
1
10
100
1000
1
10
100
1000
1
10
100
1000
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
6
_______________________________________________________________________________________
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