参数资料
型号: MAX1797EUA-T
厂商: Maxim Integrated Products
文件页数: 5/13页
文件大小: 0K
描述: IC REG BOOST SYNC FIX/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,5V,可调
输入电压: 1 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 500kHz
电流 - 输出: 550mA
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
Low Supply Current, Step-Up DC-DC Converters
with True-Shutdown
Typical Operating Characteristics
(L = 22μH, C IN = 47μF, C OUT = 47μF, T A = +25 ° C, unless otherwise noted.)
MAX1795
EFFICIENCY vs. LOAD CURRENT (+5V)
MAX1795
EFFICIENCY vs. LOAD CURRENT (+3.3V)
MAX1796
EFFICIENCY vs. LOAD CURRENT (+5V)
100
V BATT = +3.6V
100
V BATT = +2.4V
100
V BATT = +3.6V
90
90
90
80
70
V BATT = +2.4V
V BATT = +1.2V
80
70
V BATT = +1.2V
80
70
V BATT = +2.4V
V BATT = +1.2V
60
50
40
30
20
60
50
40
30
20
60
50
40
30
20
10
0
10
0
L = 10 μ H
10
0
0.1
1
10
100
1000
0.1
1
10
100
1000
0.1
1
10
100
1000
LOAD CURRENT (mA)
MAX1796
EFFICIENCY vs. LOAD CURRENT (+3.3V)
LOAD CURRENT (mA)
MAX1797
EFFICIENCY vs. LOAD CURRENT (+5V)
LOAD CURRENT (mA)
MAX1797
EFFICIENCY vs. LOAD CURRENT (+3.3V)
100
90
V BATT = +2.4V
100
90
V BATT = +3.6V
100
90
V BATT = +2.4V
80
80
80
70
V BATT = +1.2V
70
70
60
60
V BATT = +2.4V
60
50
40
30
20
10
0
50
40
30
20
10
0
V BATT = +1.2V
50
40
30
20
10
0
V BATT = +1.2V
0.1
1
10
100
1000
0.1
1
10
100
1000
0.1
1
10
100
1000
300
250
200
LOAD CURRENT (mA)
NO-LOAD BATTERY CURRENT
vs. INPUT BATT VOLTAGE
4.0
3.5
3.0
2.5
LOAD CURRENT (mA)
STARTUP VOLTAGE
vs. LOAD CURRENT
3.0
2.5
2.0
LOAD CURRENT (mA)
SHUTDOWN THRESHOLD
vs. INPUT BATT VOLTAGE
150
2.0
V OUT = +3.3V
1.5
100
V OUT = +5 V
1.5
1.0
1.0
50
0
V OUT = +3.3 V
0.5
0
0.5
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
0.1
1
10
100
1000
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
BATT VOLTAGE (V)
LOAD CURRENT (mA)
BATT VOLTAGE (V)
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5
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