参数资料
型号: MAX668EUB-T
厂商: Maxim Integrated Products
文件页数: 4/18页
文件大小: 0K
描述: IC REG CTRLR PWM HYBRID 10-UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电流模式,混合
输出数: 1
频率 - 最大: 575kHz
占空比: 94%
电源电压: 3 V ~ 28 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
MAX668/MAX669
1.8V to 28V Input, PWM Step-Up
Controllers in μMAX
ELECTRICAL CHARACTERISTICS (continued)
(V CC = V LDO = +5V, R OSC = 200k ? , T A = -40°C to +85°C, unless otherwise noted.)
PARAMETER
REF Output Voltage
REF Load Regulation
REF Undervoltage Lockout Threshold
CONDITIONS
No load, C REF = 0.22μF
REF load = 0 to 50μA
Rising edge, 1% hysteresis
MIN
1.22
1.0
MAX
1.28
-10
1.2
UNITS
V
mV
V
OSCILLATOR
R OSC = 200k ? ±1%
222
278
Oscillator Frequency
Maximum Duty Cycle
Minimum SYNC Input-Pulse Duty Cycle
Minimum SYNC Input Low Pulse Width
R OSC =100k ? ±1%
R OSC = 500k ? ±1%
R OSC = 200k ? ±1%
R OSC = 100k ? ±1%
R OSC = 500k ? ±1%
425
85
87
86
86
575
115
93
94
94
45
200
kHz
%
%
ns
SYNC Input Rise/Fall Time
SYNC Input Frequency Range
Not tested
100
200
500
ns
kHz
SYNC/ SHDN Input High Voltage
SYNC/ SHDN Input Low Voltage
SYNC/ SHDN Input Current
EXT On-Resistance
3.0V < V CC < 28V
1.8V < V CC < 3.0V (MAX669)
3.0V < V CC < 28V
1.8V < V CC < 3.0V (MAX669)
V SYNC/ SHDN = 5V
V SYNC/ SHDN = 28V
EXT high or low
2.0
1.5
0.45
0.30
3.0
6.5
5
V
V
μA
?
Note 1: This is the V CC current consumed when active but not switching. Does not include gate-drive current.
Note 2: Limits at T A = -40°C are guaranteed by design.
4
Maxim Integrated
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