ncp1400a ON Semiconductor, ncp1400a Datasheet
ncp1400a
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ncp1400a Summary of contents
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... Additionally, a chip enable feature is provided to power down the converter for extended battery life. The NCP1400A device series are available in the Thin SOT23−5 package with seven standard regulated output voltages. Additional voltages that range from 1 4 100 mV steps can be manufactured ...
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... NCP1400ASN27T1G 2.7 V NCP1400ASN30T1 3.0 V NCP1400ASN30T1G 3.0 V NCP1400ASN33T1 3.3 V NCP1400ASN33T1G 3.3 V NCP1400ASN38T1 3.8 V NCP1400ASN38T1G 3.8 V NCP1400ASN45T1 4.5 V NCP1400ASN45T1G 4.5 V NCP1400ASN50T1 5.0 V NCP1400ASN50T1G 5.0 V NOTE: The ordering information lists seven standard output voltage device options. Additional devices with output voltage ranging from 1 5 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. ...
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... Voltage Limit ( 0.96, V OUT CE SET Off−State Leakage Current ( means setting of output voltage. SET 6. CE pin is integrated with an internal 150 nA pullup current source. NCP1400A Symbol (For all values T = 25°C, unless otherwise noted.) A Symbol f OSC Df x 0.96) D MAX V start DV = − ...
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... CE SET Device Suffix: 19T1 22T1 25T1 27T1 30T1 33T1 38T1 45T1 50T1 5. V means setting of output voltage. SET 6. CE pin is integrated with an internal 150 nA pullup current source. NCP1400A = 25°C, unless otherwise noted.) A Symbol V CE(high) V CE(low CE(high CE(low) V OUT DV = − ...
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... Figure 4. NCP1400ASN50T1 Output Voltage vs. Output Current 100 0 1 NCP1400ASN30T1 25° OUTPUT CURRENT (mA) O Figure 6. NCP1400ASN30T1 Efficiency vs. Output Current NCP1400A 3 2.8 NCP1400ASN30T1 2 25°C A 2.4 80 100 0 20 Figure 3. NCP1400ASN30T1 Output Voltage 100 ...
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... T , AMBIENT TEMPERATURE (°C) A Figure 10. NCP1400ASN50T1 Current Consumption vs. Temperature 1.0 0.8 0.6 0.4 NCP1400ASN30T1 0 3 0.96 OUT 0 −50 − AMBIENT TEMPERATURE (°C) A Figure 12. NCP1400ASN30T1 V vs. Temperature NCP1400A 100 NCP1400ASN30T1 3 0.96 OUT Open−loop Test 0 4.5 5.0 5.5 −50 −25 T Figure 9. NCP1400ASN30T1 Current Consumption vs. Temperature 1.0 0.8 0.6 0.4 ...
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... Figure 18. NCP1400ASN30T1 Maximum Duty Cycle vs. Temperature NCP1400A 5.1 5.0 4.9 4.8 NCP1400ASN50T1 100 −50 −25 Figure 15. NCP1400ASN50T1 Output Voltage 300 250 200 150 100 NCP1400ASN50T1 V 50 OUT Open−loop Test 100 −50 −25 Figure 17. NCP1400ASN50T1 Oscillator 100 ...
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... T , AMBIENT TEMPERATURE (°C) A Figure 21. NCP1400ASN50T1 Startup/Hold Voltage vs. Temperature 260 220 180 140 NCP1400ASN50T1 100 75 100 −50 − AMBIENT TEMPERATURE (°C) A Figure 23. NCP1400ASN50T1 LX Pin On−State Current vs. Temperature 5.0 4.0 3.0 2.0 NCP1400ASNXXT1 V = 0 25° 4.5 5.0 5.5 1.5 2.0 2.5 V OUT Figure 25. NCP1400ASNXXT1 LX Switch On−Resistance vs. Output Voltage http://onsemi ...
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... NCP1400ASN30T1 OUT T = 25° OUTPUT CURRENT (mA) O Figure 30. NCP1400ASN30T1 Ripple Voltage vs. Output Current NCP1400A 1.6 1.4 1.2 1.0 0.8 0 5.0 Figure 27. NCP1400ASN30T1 Operation Startup/Hold Voltage vs. Output Current 80.0 NCP1400ASN19T1 OUT 60 25° ...
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... I , 100 mA/div L Figure 33. Operating Waveforms (Heavy Load 1.9 V (AC coupled), 50 mV/div OUT 3 Figure 35. NCP1400ASN19T1 Load Transient Response = 1 3.0 V (AC coupled), 50 mV/div OUT 3 Figure 37. NCP1400ASN30T1 Load Transient Response http://onsemi.com ...
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... 5.0 V (AC coupled), 50 mV/div OUT 3 Figure 38. NCP1400ASN50T1 Load Transient Response OUT VOLTAGE REFERENCE GND 4 PIN FUNCTION DESCRIPTION Pin # Symbol Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á ...
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... V). when the chip is disabled (V CE Soft−Start There is a soft−start circuit in NCP1400A. When power is applied to the device, the soft−start circuit pumps up the output voltage to approximately 1 fixed duty cycle, the level at which the converter can operate normally. What is more, the startup capability with heavy loads is also improved ...
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... External Component Selection Inductor Inductance values between 18 mH and 27 mH are the best suitable values for NCP1400A. In general, smaller inductance values can provide larger peak inductor current and output current capability, and lower conversion efficiency, and vice versa. Select an inductor with smallest possible DCR, usually less than 1 ...
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... Please contact your Figure 42. NCP1400A PWM Step−up DC−DC Converter Evaluation Board Silkscreen Figure 43. NCP1400A PWM Step−up DC−DC Converter Evaluation Board Artwork (Component Side) NCP1400A representative for availability. The evaluation board schematic diagram, the artwork and the silkscreen of the ON ...
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... TP2 V OUT C2 68 mF/10 V TP3 GND Figure 44. NCP1400A Evaluation Board Schematic Diagram NCP1400A Part Number Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Inductor 22 mH/1.11 A CR54−220MC Á Á Á Á Á Á ...
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... D 0.25 0.50 0.0098 0.0197 G 0.85 1.05 0.0335 0.0413 H 0.013 0.100 0.0005 0.0040 J 0.10 0.26 0.0040 0.0102 K 0.20 0.60 0.0079 0.0236 L 1.25 1.55 0.0493 0.0610 2.50 3.00 0.0985 0.1181 mm inches ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative. NCP1400A/D ...