Datasheet MAX1818 (Maxim) - 2
| 制造商 | Maxim |
| 描述 | 500mA, Low-Dropout Linear Regulator in SOT23 |
| 页数 / 页 | 9 / 2 — Absolute Maximum Ratings. Note 1:. Note 2:. Electrical Characteristics. … |
| 文件格式/大小 | PDF / 1.5 Mb |
| 文件语言 | 英语 |
Absolute Maximum Ratings. Note 1:. Note 2:. Electrical Characteristics. PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. UNITS
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文件文字版本
MAX1818 500mA Low-Dropout Linear Regulator in SOT23
Absolute Maximum Ratings
IN, SHDN, POK, SET to GND ...-0.3V to +6V Operating Temperature Range ... -40°C to +85°C OUT to GND ...-0.3V to (VIN + 0.3V) Junction Temperature ..+150°C Output Short-Circuit Duration .. 1min Storage Temperature Range .. -65°C to +150°C Continuous Power Dissipation (TA = +70°C) (Note 1) Lead Temperature (soldering, 10s) (Note 2) ...+300°C 6-Pin SOT23 (derate 10mW/°C above +70°C) ...800mW
Note 1:
Thermal properties are specified with product mounted on PC board with one square-inch of copper area and still air. With minimal copper, the SOT23 package dissipates 712mW at +70°C. With a quarter square inch of copper, it will dissipate 790mW at +70°C. Copper should be equally shared between the IN, OUT, and GND pins.
Note 2:
This device is constructed using a unique set of packaging techniques that imposes a limit on the thermal profile to which the device can be exposed during board-level solder attach and rework. The limit permits only the use of the solder profiles recom- mended in the industry standard specification, IPC JEDEC-J-STD-020A, paragraph 7.6, Table 3 for the IR/VPR and convection reflow. Preheating is required. Hand or wave soldering is not allowed. 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
(VIN = VOUT + 500mV or VIN = +2.5V, whichever is greater; SHDN = IN, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage VIN 2.5 5.5 V Input Undervoltage Lock-Out VUVLO Rising, 75mV hysteresis 2.0 2.15 2.3 V IOUT = 100mA, TA = +25°C, VOUT ≥ 2.0V -1 +1 I Output Voltage Accuracy OUT = 100mA, VOUT < 2.0V -1.5 +1.5 (Preset Mode) VOUT IOUT = 100mA, TA = -40°C to +85°C -2.5 +2.5 % IOUT = 1mA to 500mA, VIN > VOUT + 0.5V, TA = -40°C to +85°C -3 +3 Adjustable Output Voltage Range 1.25 5 V SET Voltage Threshold VIN = 2.7V, TA = 0°C to +85°C 1.225 1.250 1.275 (Adjustable Mode) VSET IOUT = 100mA, V VOUT set to 2.0V TA = -40°C to +85°C 1.213 1.288 Guaranteed Output Current (RMS) IOUT VIN ≥ 2.7V 500 mA Short-Circuit Current Limit ILIM VOUT = 0, VIN ≥ 2.7V 0.55 0.8 1.8 A In-Regulation Current Limit VOUT > 96% of nominal value, VIN ≥ 2.7V 1.6 A SET Dual Mode™ Threshold 50 100 150 mV SET Input Bias Current ISET VSET = 1.25V -100 +100 nA I Ground-Pin Current I OUT = 100µA 125 250 Q µA IOUT = 500mA 140 VOUT = 5V 100 220 Dropout Voltage (Note 4) VIN - VOUT IOUT = 500mA VOUT = 3.3V 120 215 mV VOUT = 2.5V 210 360 Line Regulation ∆V V LNR IN from (VOUT + 100mV) to 5.5V, ILOAD = 5mA -0.15 0 +0.15 %/V Dual Mode is a trademark of Maxim Integrated Products www.maximintegrated.com Maxim Integrated │
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Absolute Maximum Ratings
IN, SHDN, POK, SET to GND ...-0.3V to +6V Operating Temperature Range ... -40°C to +85°C OUT to GND ...-0.3V to (VIN + 0.3V) Junction Temperature ..+150°C Output Short-Circuit Duration .. 1min Storage Temperature Range .. -65°C to +150°C Continuous Power Dissipation (TA = +70°C) (Note 1) Lead Temperature (soldering, 10s) (Note 2) ...+300°C 6-Pin SOT23 (derate 10mW/°C above +70°C) ...800mW
Note 1:
Thermal properties are specified with product mounted on PC board with one square-inch of copper area and still air. With minimal copper, the SOT23 package dissipates 712mW at +70°C. With a quarter square inch of copper, it will dissipate 790mW at +70°C. Copper should be equally shared between the IN, OUT, and GND pins.
Note 2:
This device is constructed using a unique set of packaging techniques that imposes a limit on the thermal profile to which the device can be exposed during board-level solder attach and rework. The limit permits only the use of the solder profiles recom- mended in the industry standard specification, IPC JEDEC-J-STD-020A, paragraph 7.6, Table 3 for the IR/VPR and convection reflow. Preheating is required. Hand or wave soldering is not allowed. 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
(VIN = VOUT + 500mV or VIN = +2.5V, whichever is greater; SHDN = IN, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage VIN 2.5 5.5 V Input Undervoltage Lock-Out VUVLO Rising, 75mV hysteresis 2.0 2.15 2.3 V IOUT = 100mA, TA = +25°C, VOUT ≥ 2.0V -1 +1 I Output Voltage Accuracy OUT = 100mA, VOUT < 2.0V -1.5 +1.5 (Preset Mode) VOUT IOUT = 100mA, TA = -40°C to +85°C -2.5 +2.5 % IOUT = 1mA to 500mA, VIN > VOUT + 0.5V, TA = -40°C to +85°C -3 +3 Adjustable Output Voltage Range 1.25 5 V SET Voltage Threshold VIN = 2.7V, TA = 0°C to +85°C 1.225 1.250 1.275 (Adjustable Mode) VSET IOUT = 100mA, V VOUT set to 2.0V TA = -40°C to +85°C 1.213 1.288 Guaranteed Output Current (RMS) IOUT VIN ≥ 2.7V 500 mA Short-Circuit Current Limit ILIM VOUT = 0, VIN ≥ 2.7V 0.55 0.8 1.8 A In-Regulation Current Limit VOUT > 96% of nominal value, VIN ≥ 2.7V 1.6 A SET Dual Mode™ Threshold 50 100 150 mV SET Input Bias Current ISET VSET = 1.25V -100 +100 nA I Ground-Pin Current I OUT = 100µA 125 250 Q µA IOUT = 500mA 140 VOUT = 5V 100 220 Dropout Voltage (Note 4) VIN - VOUT IOUT = 500mA VOUT = 3.3V 120 215 mV VOUT = 2.5V 210 360 Line Regulation ∆V V LNR IN from (VOUT + 100mV) to 5.5V, ILOAD = 5mA -0.15 0 +0.15 %/V Dual Mode is a trademark of Maxim Integrated Products www.maximintegrated.com Maxim Integrated │
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