参数资料
型号: MAX1678EUA+T
厂商: Maxim Integrated Products
文件页数: 5/12页
文件大小: 0K
描述: IC REG BOOST SYNC 3.3V/ADJ 8UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 升压(升压)
输出类型: 两者兼有
输出数: 1
输出电压: 3.3V,2 V ~ 5.5 V
输入电压: 0.7 V ~ 5.5 V
电流 - 输出: 90mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-uMAX
1-Cell to 2-Cell, Low-Noise,
High-Efficiency, Step-Up DC-DC Converter
Typical Operating Characteristics (continued)
(Circuit of Figure 7 (Fixed Mode, 3.3V) or Figure 8 (Adjustable Mode), T A = +25°C, unless otherwise noted.)
NO-LOAD BATTERY CURRENT
BATT AND OUT QUIESCENT CURRENT
90
EFFICIENCY WITH DIFFERENT INDUCTORS
1000
vs. INPUT VOLTAGE
45
vs. TEMPERATURE
85
80
V BATT = 1.2V
V OUT = 3.3V
I LOAD = 20mA
V OUT = 5.0V
R1 = 3M ? , R2 = 1M ?
40
35
V BATT = 1.3V
V OUT = 3.6V
FB = GND
I OUT
75
70
65
100
V OUT = 3.0V
FB = GND
30
25
20
15
60
55
L1 = 47 μ H
V OUT = 2.4V
R1 = 1M ? , R2 = 1M ?
10
5
I BATT
50
10
SUMIDA CD43-470
0
COILCRAFT SUMIDA
MURATA
TDK
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
INPUT VOLTAGE (V)
-40
-20
0 20 40 60
TEMPERATURE (°C)
80
100
SHUTDOWN BATTERY CURRENT
vs. INPUT VOLTAGE
ON-TIME CONSTANT (K)
vs. TEMPERATURE
MINIMUM START-UP INPUT VOLTAGE
vs. LOAD CURRENT
12
10
8
3.3V FIXED MODE
L1 = 47 μ H
SUMIDA CD43-470
9.0
8.8
8.6
8.4
V BATT = 1.3V
1.3
1.2
1.1
1.0
L1 = 47 μ H
SUMIDA CD43-470
3.3V FIXED MODE
WITHOUT
DIODE
6
8.2
0.9
WITH EXTERNAL
4
2
0
8.0
7.8
7.6
0.8
0.7
0.6
SCHOTTKY DIODE
(FIGURE 3)
0
1
2
3
4
5
6
-40
-20
0
20
40
60
80
100
0
5
10
15
20
25
30
35
140
INPUT VOLTAGE (V)
MAXIMUM LOAD CURRENT
vs. INPUT VOLTAGE
(L1 = 22 μ H)
L1 = 22 μ H
140
TEMPERATURE (°C)
MAXIMUM LOAD CURRENT
vs. INPUT VOLTAGE
(L1 = SUMIDA 47 μ H)
L1 = 47 μ H
140
LOAD CURRENT (mA)
MAXIMUM LOAD CURRENT
vs. INPUT VOLTAGE
(L1 = TDK 47 μ H)
L1 = 47 μ H
120
100
80
60
SUMIDA CD43-220
V OUT = 2.4V
120
100
80
60
SUMIDA CD43-470
V OUT = 3.3V
V OUT = 2.4V
120
100
80
60
TDK NLC453232T-470K
V OUT = 3.3V
40
V OUT = 3.3V
40
V OUT = 5.0V
40
V OUT = 2.4V
V OUT = 5.0V
20
V OUT = 5.0V
20
20
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
INPUT VOLTAGE (V)
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
INPUT VOLTAGE (V)
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
INPUT VOLTAGE (V)
_______________________________________________________________________________________
5
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