Datasheet MAX8887, MAX8888 (Maxim) - 3
| 制造商 | Maxim |
| 描述 | Low-Dropout, 300mA Linear Regulators in SOT23 |
| 页数 / 页 | 9 / 3 — Low-Dropout, 300mA Linear Regulators in SOT23. MAX8887/MAX8888. … |
| 文件格式/大小 | PDF / 238 Kb |
| 文件语言 | 英语 |
Low-Dropout, 300mA Linear Regulators in SOT23. MAX8887/MAX8888. ELECTRICAL CHARACTERISTICS (continued). PARAMETER. SYMBOL
该数据表的模型线
文件文字版本
Low-Dropout, 300mA Linear Regulators in SOT23 MAX8887/MAX8888 ELECTRICAL CHARACTERISTICS (continued)
(VIN = VOUT + 1V, SHDN = IN, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SHUTDOWN
Shutdown Supply Current SHDN = GND, VIN = 5.5V 0.1 2 µA VIH 2.5V ≤ VIN ≤ 5.5V 1.6 SHDN Input Threshold V VIL 2.5V ≤ VIN ≤ 5.5V 0.6 SHDN Input Bias Current SHDN = IN or GND 10 100 nA OUT Discharge Resistance in SHDN = GND 650 1100 Ω Shutdown
POK (MAX8888 ONLY)
POK Trip Level, Referred to OUT VOUT falling 90 92.5 95 % Set Point (1% typical hysteresis) Operating IN Voltage Range for 1.0 5.5 V Valid POK POK Output Voltage Low VOL ISINK = 1mA 0.1 V POK Output Leakage Current VPOK = 5.5V, SHDN = IN 100 nA
THERMAL PROTECTION
Thermal Shutdown Temperature 170 °C Thermal Shutdown Hysteresis 20 °C
Note 1:
All parts are 100% tested at TA = +25°C. Limits over the operating temperature range are guaranteed by design.
Note 2:
Typical and maximum dropout voltage for different output voltages are shown in the Typical Operating Characteristics curves.
Typical Operating Characteristics
(Typical Operating Circuit, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE ACCURACY OUTPUT VOLTAGE ACCURACY OUTPUT VOLTAGE vs. INPUT VOLTAGE vs. LOAD CURRENT vs. TEMPERATURE
3.5 1.0 0.05 I I OUT = 0 0.8 0.04 OUT = 0 3.0 VIN = VOUT + 500mV IOUT = 300mA 0.03 MAX8887/8 toc01 0.6 MAX8887/8 toc02 MAX8887/8 toc03 2.5 0.4 0.02 0.01 2.0 0.2 0.0 0.0 1.5 -0.2 % DEVIATION -0.01 % DEVIATION (%) OUTPUT VOLTAGE (V) 1.0 -0.4 -0.02 -0.6 -0.03 0.5 -0.8 -0.04 0 -1.0 -0.05 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0 50 100 150 200 250 300 -40 -15 10 35 60 85 INPUT VOLTAGE (V) LOAD CURRENT (mA) TEMPERATURE (°C)
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(VIN = VOUT + 1V, SHDN = IN, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SHUTDOWN
Shutdown Supply Current SHDN = GND, VIN = 5.5V 0.1 2 µA VIH 2.5V ≤ VIN ≤ 5.5V 1.6 SHDN Input Threshold V VIL 2.5V ≤ VIN ≤ 5.5V 0.6 SHDN Input Bias Current SHDN = IN or GND 10 100 nA OUT Discharge Resistance in SHDN = GND 650 1100 Ω Shutdown
POK (MAX8888 ONLY)
POK Trip Level, Referred to OUT VOUT falling 90 92.5 95 % Set Point (1% typical hysteresis) Operating IN Voltage Range for 1.0 5.5 V Valid POK POK Output Voltage Low VOL ISINK = 1mA 0.1 V POK Output Leakage Current VPOK = 5.5V, SHDN = IN 100 nA
THERMAL PROTECTION
Thermal Shutdown Temperature 170 °C Thermal Shutdown Hysteresis 20 °C
Note 1:
All parts are 100% tested at TA = +25°C. Limits over the operating temperature range are guaranteed by design.
Note 2:
Typical and maximum dropout voltage for different output voltages are shown in the Typical Operating Characteristics curves.
Typical Operating Characteristics
(Typical Operating Circuit, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE ACCURACY OUTPUT VOLTAGE ACCURACY OUTPUT VOLTAGE vs. INPUT VOLTAGE vs. LOAD CURRENT vs. TEMPERATURE
3.5 1.0 0.05 I I OUT = 0 0.8 0.04 OUT = 0 3.0 VIN = VOUT + 500mV IOUT = 300mA 0.03 MAX8887/8 toc01 0.6 MAX8887/8 toc02 MAX8887/8 toc03 2.5 0.4 0.02 0.01 2.0 0.2 0.0 0.0 1.5 -0.2 % DEVIATION -0.01 % DEVIATION (%) OUTPUT VOLTAGE (V) 1.0 -0.4 -0.02 -0.6 -0.03 0.5 -0.8 -0.04 0 -1.0 -0.05 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0 50 100 150 200 250 300 -40 -15 10 35 60 85 INPUT VOLTAGE (V) LOAD CURRENT (mA) TEMPERATURE (°C)
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