参数资料
型号: MAX1744EUB+T
厂商: Maxim Integrated Products
文件页数: 4/15页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 10-UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 控制器
输出数: 1
频率 - 最大: 330kHz
占空比: 100%
电源电压: 4.5 V ~ 36 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)
High-Voltage, Step-Down DC-DC
Controllers in μMAX
ELECTRICAL CHARACTERISTICS
(VIN = V SHDN = 5.5V to 36V, 3/5 = GND, ILOAD = 0, TA = -40°C to +125°C , unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
MAX
UNITS
Input Voltage Range
Supply Current into IN
Shutdown Supply Current
V SHDN = V IN = 5.5V to 36V
SHDN = GND
4.5
36
140
15
V
μA
μA
Output Voltage (MAX1744)
OUT Input Current (MAX1744)
FB Threshold Voltage (MAX1745)
FB Input Current (MAX1745)
VH Output Voltage with Respect to IN
VL Output Voltage
VL Undervoltage Lockout
CS Threshold Voltage
CS Input Current
3/5 = VL
3/5 = GND
3/5 = VL, V OUT = 5V
Falling edge, hysteresis = 8mV
V IN = 5.5V to 36V, I VH = 100μA to 20mA
V IN = 5.5V to 36V, I VL = 100μA to 2mA
V CS = V OUT = 2.5V to 18V
V CS = V OUT = V GND
V CS = V OUT = 2.5V to 18V
V CS = V OUT = V GND
4.85
3.20
1.22
-50
-6.0V
4.5
1.6
85
80
0
-25
5.15
3.40
44
1.28
50
-4.3V
5.5
4.1
115
150
25
0
V
μA
V
nA
V
V
V
mV
μA
SHDN , 3/5 Logic-High Threshold
SHDN , 3/5 Logic-Low Threshold
3/5 Input Current
SHDN Input Current
EXT Resistance
V IN = 4.5V to 36V
V IN = 4.5V to 36V
SHDN = GND
3/5 = GND
V SHDN = 36V
2.4
0.4
± 1
± 1
12
20
V
V
μA
μA
Ω
Minimum EXT Off-Time
Minimum EXT On-Time
1.5
0.7
2.5
1.5
μs
μs
Reference Voltage
REF Load Regulation
REF Line Regulation
I REF = 0
0 ≤ I REF ≤ 100μA
V IN = 4.5V to 36V, I REF = 0
1.22
1.28
10
80
V
mV
μV/V
Note 1: Specifications to -40°C are guaranteed by design, not production tested.
4
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