参数资料
型号: MAX1627ESA+T
厂商: Maxim Integrated Products
文件页数: 2/16页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 8-SOIC
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
输出数: 1
频率 - 最大: 300kHz
占空比: 100%
电源电压: 3 V ~ 16.5 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: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
5V/3.3V or Adjustable, 100% Duty-Cycle,
High-Efficiency, Step-Down DC-DC Controllers
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to GND.......................................-0.3V, +17V
OUT, FB, 3 /5, SHDN, REF, CS, EXT to GND ...-0.3V, (V+ + 0.3V)
Maximum Current at REF (I REF ) ..........................................15mA
Maximum Current at EXT (I EXT ) ..........................................50mA
Operating Temperature Range
MAX1626ESA/MAX1627ESA ............................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
Continuous Power Dissipation (T A = +70°C)
SO (derate 5.88mW/°C above +70°C) ..........................471mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V+ = +3V to +16.5V, SHDN = 3 /5 = 0V, T A = 0°C to +85°C, unless otherwise noted.)
PARAMETER
Input Voltage Range
Supply Current into V+
SYMBOL
V+
I+
CONDITIONS
Operating, no load
V+ = SHDN = 16.5V (shutdown)
MIN
3.0
TYP
70
MAX
16.5
90
1
UNITS
V
μA
Undervoltage Lockout
2.7
2.8
V
Output Voltage
OUT Input Current
FB Threshold Voltage
FB Leakage Current
V OUT
I OUT
Circuit of Figure 1, 3 /5 = V+ (Note 1)
Circuit of Figure 1, 3 /5 = 0V (Note 1)
MAX1626, 3 /5 = V+, output forced to 5V
MAX1627, includes hysteresis
MAX1627
4.85
3.20
24
1.27
0
5.00
3.30
37
1.30
5.15
3.40
50
1.33
35
V
μA
V
nA
CS Input Current
0
10
μA
CS Threshold Voltage
V CS
85
100
115
mV
SHDN Input Voltage High
SHDN Input Voltage Low
1.6
0.4
V
V
SHDN Input Current
3 /5 Input Voltage High
3 /5 Input Voltage Low
3 /5 Leakage Current
EXT Resistance
SHDN = 0V or V+
3 /5 = 0V or V+
V+ = 5V
V+ - 0.5
10
±1
0.5
±1
μA
V
V
μA
?
Minimum EXT Off Time
Output forced to 0V
Output in regulation
8
1.5
10
2.0
12
2.5
μs
EXT Duty-Cycle Limit
100
%
Line Regulation
Load Regulation
6.0V < V+ < 12.0V, I LOAD = 1A
30mA < I LOAD < 2.0A, V+ = 8V
5
15
mV/V
mV/A
Reference Voltage
REF Load Regulation
REF Line Regulation
V REF
I LOAD = 0μA
0μA ≤ I REF ≤ 100μA
V+ = 3V to 16.5V, I LOAD = 0μA
1.27
1.30
4
10
1.33
10
100
V
mV
μV/V
2
_______________________________________________________________________________________
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