S-818 SII [Seiko Instruments Inc], S-818 Datasheet
S-818
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S-818 Summary of contents
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... SOT-23-5 (Package drawing code: MP005-A) O 5-pin SOT-89-5 (Package drawing code: UP005-A) The S-818 Series is a positive voltage regulator developed utilizing CMOS technology featured by low dropout voltage, high output voltage accuracy and low current consumption. Built-in low on-resistance transistor provides low dropout voltage and large output current ...
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... LOW DROPOUT CMOS VOLTAGE REGULATOR S-818 Series „ Block Diagram VIN ON/OFF VSS „ Selection Guide 1. Product Name S-818x xxx - T2 Output Voltage 2.0 V ± 2.0% 2.5 V ± 2.0% 2.8 V ± 2.0% 3.0 V ± 2.0% 3.3 V ± 2.0% 3.8 V ± 2.0% 4.0 V ± 2.0% 5.0 V ± 2.0% Note: Contact SII sales division for product with an output voltage other than those specified above or product type B, low active product ...
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... OFF V V OUT SS P 250 (SOT-23-5) D 500 (SOT-89-5) Tope Tstg Seiko Instruments Inc. S-818 Series Table 2 Pin Assignment Symbol Description VIN Voltage input pin VSS GND pin ON/OFF Power off pin Note NC No connection VOUT Voltage output pin Table 3 Pin Assignment ...
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... LOW DROPOUT CMOS VOLTAGE REGULATOR S-818 Series „ Electrical Characteristics S-818AXXAMC/UC, S-818BXXAMC/UC Table 5 Electrical Characteristics Parameter Symbol Output voltage V *1) Output current *2) Dropout voltage *3) Line regulation 1 V Line regulation 2 V Load regulation Output voltage temperature coefficient * Current consumption during operation ...
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... F or more can be used in CL capacitor used to stabilize input. Use a IN capacitor of 0. more. GND : 0. more : more or less : 10 or less Seiko Instruments Inc. S-818 Series A VIN VOUT ON/OFF VSS Set GND IN VIN VOUT ON/OFF A ...
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... IN OUT 6. Temperature coefficient of output voltage [ V The shadowed area in Figure 6 is the range where V temperature coefficient of the output voltage is 100 ppm/ C. Typical Example of the S-818A28A V OUT [V] (E) OUT Figure 6 Temperature coefficient range of output voltage A change of output voltage in temperature [mV/°C] is calculated using the following equation. ...
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... Output transistor The S-818 Series uses a low on-resistance Pch MOS FET as the output transistor. Be sure that V does not exceed V OUT inverse current flowing from V 3 ...
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... S-818 Series „ Selection of Output Capacitor (CL) The S-818 series needs an output capacitor between VOUT pin and VSS pin for phase compensation. A small ceramic electrolytic capacitor more can be used tantalum or an aluminum electrolytic capacitor is used, its capacitance must more and the ESR must be 10 Attention should be paid not to cause an oscillation due to increase of ESR at low temperatures when using an aluminum electrolytic capacitor ...
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... Minimum value of output current in Table 4 “Electrical Characteristics” and Note *5) (page 4); Power dissipation of the package 0.6 0.8 S-818A30A (Ta=25°C) 3.5 Iout=10uA 3.0 2.5 60mA 30mA 2.0 1 Seiko Instruments Inc. S-818 Series 10V 6V 5V 0.2 0.4 0.6 I (A) OUT 100uA 1mA 60mA 30mA ( ...
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... LOW DROPOUT CMOS VOLTAGE REGULATOR S-818 Series (3) MAXIMUM OUTPUT CURRENT vs. INPUT VOLTAGE S-818A20A 0.8 Ta=-40°C 0.6 0.4 0.2 0 (V) IN S-818A50A 0.8 25°C 0.6 Ta=-40°C 0.4 0.2 0 (V) IN (4) DROPOUT VOLTAGE vs. OUTPUT CURRENT S-818A20A 2000 1500 85°C 1000 500 100 150 I (mA S-818A50A 2000 1500 85° ...
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... V =2V /54 0 -50 0 Ta(°C) LOW DROPOUT CMOS VOLTAGE REGULATOR S-818A30A =3V, I =30mA OUT 3.06 3.03 3.00 2.97 2.94 50 100 =6V, I =30mA OUT 50 100 10V,I =30mA /54 50 100 =10uA 80mA /54 50 100 Seiko Instruments Inc. V =4V, I =30mA IN OUT - Ta(°C) S-818 Series 100 11 ...
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... LOW DROPOUT CMOS VOLTAGE REGULATOR S-818 Series (8) CURRENTCONSUMPTION vs. INPUT VOLTAGE S-818A20A Ta=-40° ( S-818A50A 40 30 85°C 20 25°C 10 Ta=-40° ( (9) THRESHOLD VOLTAGE OF POWER OFF PIN vs. INPUT VOLTAGE S-818A20A 2.5 2 1.5 1.0 0.5 0 (V) IN S-818A50A 2.5 2 1.5 1.0 0 ...
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... I =30mA C = None C IN OUT IN OUT 1 f (kHz) V =4V I =30mA C = None C IN OUT IN OUT 1 f (kHz) = None C V =6V I =30mA C OUT IN OUT (kHz) Seiko Instruments Inc. S-818 Series =2 F 0.5Vp-p Ta=25°C 10 100 =2 F 0.5Vp-p Ta=25°C 10 100 =2 F 0.5Vp-p Ta=25°C 10 100 13 ...
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... LOW DROPOUT CMOS VOLTAGE REGULATOR S-818 Series „ TRANSIENT RESPONSE CHARACTERISTICS (S-818A30A, Typical data: Ta=25 C) INPUT VOLTAGE or LOAD CURRENT OUTPUT VOLTAGE (1) Power 10V CL OUT 0V TIME(50usec/div) Load dependence of overshoot (S)+1V, CL OUT 1.0 0.8 0.6 3V 0.4 V =2V 0.2 OUT 0.0 1.E-05 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00 I (A) OUT VDD dependence of overshoot V =0 VDD, I ...
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... OUT CL=4.7 F Output capacitor (CL) dependence of overshoot V =V (S)+1V IN OUT 1.0 5V 0.8 0.6 0.4 0.2 0.0 1 Temperature dependence of overshoot V =V (S)+ OUT 1.0 0.8 5V 0.6 0.4 0.2 0 -50 Seiko Instruments Inc. S-818 Series (S)+1V I =30mA, ON/OFF=0 V OUT OUT OUT V =2V OUT CL(uF) =30mA, CL=2 F, ON/OFF=0 V OUT =2V OUT Ta °C (S)+1V 100 (S)+1V OUT 100 15 ...
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... LOW DROPOUT CMOS VOLTAGE REGULATOR S-818 Series (3) Power fluctuation V =4 10V I IN 10V CL OUT 3V TIME(50usec/div) Load dependence of overshoot V =V (S)+1V V (S)+2V,CL OUT OUT 0.6 0.4 V =2V OUT 0.2 0 1.E-05 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00 I (A) OUT VDD dependence of overshoot VDD ( OUT 0.6 0.4 V =2V OUT 0 VDD(V) ...
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... Output capacitor (CL) dependence of undershoot 0.05 5V 0.04 0.03 =2V 0.02 0.01 0 1.E-01 1.E+00 1 Temperature dependence of undershoot V =V =30mA,CL OUT 0.06 5V 0.05 3V 0.04 0.03 0.02 0. -50 Seiko Instruments Inc. S-818 Series (S)+2V V (S)+1V ,I =30mA OUT OUT OUT 3V V =2V OUT 5V 10 CL(uF) ,CL=2 (S)+2V V (S)+1V, I =30mA OUT OUT 3V V =2V OUT Ta(°C) 100 F 100 17 ...
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... LOW DROPOUT CMOS VOLTAGE REGULATOR S-818 Series (4) Load fluctuation I =10 A 30mA V OUT 30mA CL=2 F OUT V OUT 3V CL=4.7 F TIME(50 sec/div) Load current dependence of load fluctuation overshoot I shows larger load current at load current OUT fluctuation while smaller current is fixed to 10 µA. For example I =1 ...
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... Output capacitor (CL) dependence of undershoot V 0.4 0.3 5V 0.2 0.1 V =2V OUT 0 1.E-01 1.E+00 1 Temperature dependence of undershoot 0.5 0.4 0.3 0 -50 Seiko Instruments Inc. S-818 Series =V (S)+1V ,I =10 A 30mA IN OUT OUT =2V OUT 10 CL(uF) (S)+1V ,I =10 A 30mA OUT OUT V =2V 3V OUT Ta(°C) 100 100 19 ...
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... When the products described herein include Strategic Products (or Service) subject to regulations, they should not be exported without authorization from the appropriate governmental authorities. The products described herein cannot be used as part of any device or equipment which influences the human body, such as physical exercise equipment, medical equipment, security system, gas ...