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| 型号： | MAX757ESA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/9页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 0.3A 8SOIC |
| 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： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.7 V ~ 5.5 V |
| 输入电压： | 0.7 V ~ 5.5 V |
| 频率 - 开关： | 500kHz |
| 电流 - 输出： | 300mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-SOIC |
MAX756/MAX757
3.3V/5V/Adjustable-Output,
Step-Up DC-DC Converters
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (OUT to GND) ....................................-0.3V, +7V
Switch Voltage (LX to GND) ........................................-0.3V, +7V
Auxiliary Pin Voltages (SHDN, LBI, LBO, REF,
3/5, FB to GND) ........................................-0.3V, (V OUT + 0.3V)
Reference Current (I REF ) ....................................................2.5mA
Continuous Power Dissipation (T A = +70°C)
Operating Temperature Ranges:
MAX75_C_ _ ........................................................0°C to +70°C
MAX75_E_ _......................................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range............................... -65°to +160°C
Lead Temperature (soldering, 10sec) ........................... +300°C
Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW
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
(Circuits of Figure 1 and Typical Operating Circuit, V IN = 2.5V, I LOAD = 0mA, T A = T MIN to T MAX , unless otherwise noted.)
PARAMETER
Output Voltage
CONDITIONS
MAX756, 3/5 = 0V, 0mA < I LOAD < 200mA
2V < V IN < 3V MAX756, 3/5 = 3V, 0mA < I LOAD < 300mA
MAX757, V OUT = 5V, 0mA < I LOAD < 200mA
MIN
4.8
3.17
4.8
TYP
5.0
3.30
5.0
MAX
5.2
3.43
5.2
UNITS
V
Minimum Start-Up Supply Voltage I LOAD = 10mA
1.1
1.8
V
Minimum Operating Supply
Voltage (once started)
Quiescent Supply Current in
3.3V Mode (Note 1)
Battery Quiescent Current
Measured at V IN in Figure 1
I LOAD = 20mA
I LOAD = 0mA, 3/5 = 3V, LBI = 1.25V, V OUT = 3.47V,
FB = 1.3V (MAX757 only)
Output set for 3.3V
0.7
60
60
V
μA
μA
Shutdown Quiescent Current
(Note 1)
SHDN = 0V, LBI = 1.25V, 3/5 = 3V, V OUT = 3.47V,
FB = 1.3V (MAX757 only)
20
40
μA
Reference Voltage
Reference-Voltage Regulation
LBI Input Threshold
No REF load, C REF = 0.1μF
3/5 = 3V, -20μA < REF load < 250μA, C REF = 0.22μF
With falling edge
1.23
1.22
1.25
0.8
1.25
1.27
2.0
1.28
V
%
V
LBI Input Hysteresis
25
mV
LBO Output Voltage Low
LBO Output Leakage Current
SHDN, 3/5 Input Voltage Low
SHDN, 3/5 Input Voltage High
SHDN, 3/5, FB, LBI Input Current
I SINK = 2mA
LBO = 5V
LBI = 1.25V, FB = 1.25V, SHDN = 0V or 3V,
3/5 = 0V or 3V
1.6
0.4
1
0.4
±100
V
μA
V
V
nA
FB Voltage
Output Voltage Range
MAX757
MAX757, I LOAD = 0mA (Note 2)
1.22
2.7
1.25
1.28
5.5
V
V
Note 1: Supply current from the 3.3V output is measured with an ammeter between the 3.3V output and OUT pin. This current
correlates directly with actual battery supply current, but is reduced in value according to the step-up ratio and efficiency.
Note 2: Minimum value is production tested. Maximum value is guaranteed by design and is not production tested.
2
Maxim Integrated
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