参数资料
型号: MAX1677EEE-T
厂商: Maxim Integrated Products
文件页数: 5/16页
文件大小: 0K
描述: IC REG BST SYNC 0.35A DL 16QSOP
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: 2
输出电压: 3.3V 或可调主电源,-28 V ~ 28 V 或可调副电源
输入电压: 0.7 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 300kHz
电流 - 输出: 350mA
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: 16-SSOP(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 16-QSOP
Compact, High-Efficiency, Dual-Output
Step-Up and LCD Bias DC-DC Converter
Typical Operating Characteristics
(Circuits of Figures 2 and 3, T A = +25 ° C, unless otherwise noted.)
MAXIMUM LOAD CURRENT
EFFICIENCY vs. LOAD CURRENT
(V OUT = 3.3V)
EFFICIENCY vs. LOAD CURRENT
(V OUT = 5V)
vs. BATTERY INPUT VOLTAGE
(PWM MODE)
100
90
PFM MODE
A = V IN = 2.4V
B = V IN = 1.2V
A
C
100
80
D
E
A
700
600
500
60
F
400
80
70
60
PWM MODE
C = 2.4V
D = 1.2V
B
D
40
20
0
B
C
PWM MODE
A: V IN = 3.6V
B: V IN = 2.4V
C: V IN = 1.2V
PFM MODE
D: V IN = 3.6V
E: V IN = 2.4V
F: V IN = 1.2V
300
200
100
0
V OUT = 3.3V
V OUT = 5V
0.1
1
10
100
1000
0.1
1
10
100
1000
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
100
LOAD CURRENT (mA)
EFFICIENCY vs. LOAD CURRENT
(LCD V OUT = 12V)
100
LOAD CURRENT (mA)
EFFICIENCY vs. LOAD CURRENT
(LCD V OUT = 20V)
1.2550
INPUT VOLTAGE (V)
REFERENCE VOLTAGE
vs. REFERENCE CURRENT
90
CIRCUIT OF FIGURE 2
A: V IN = 3.6V
B: V IN = 2.4V
C: V IN = 1.2V
90
CIRCUIT OF FIGURE 2
A: V IN = 3.6V
B: V IN = 2.4V
C: V IN = 1.2V
1.2525
80
A
80
70
60
C
B
70
B
A
1.2500
50
40
60
50
C
1.2475
1.2450
0.1
1
10
100
0.1
1
10
100
0
20
40
60
80
100
450
LOAD CURRENT (mA)
LOAD CURRENT
vs. STARTUP VOLTAGE
0.20
LOAD CURRENT (mA)
NO-LOAD SUPPLY CURRENT vs.
INPUT VOLTAGE (LCD OFF)
1.1
REFERENCE CURRENT ( μ A)
NO-LOAD SUPPLY CURRENT vs.
INPUT VOLTAGE (LCD ON)
400
350
300
250
200
150
V OUT = 3.3V
TESTED WITH
RESISTIVE LOAD
PWM
0.18
0.16
0.14
0.12
0.10
0.08
0.06
V OUT = 3.3V
PFM MODE
LCD OFF
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
V OUT = 3.3V
PFM MODE
V LCD = -20V
100
50
0
PFM
0.04
0.02
0
0.2
0.1
0
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
START-UP VOLTAGE (V)
INPUT VOTAGE (V)
INPUT VOLTAGE (V)
_______________________________________________________________________________________
5
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