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NCP1400A

100 mA, Fixed Frequency PWM Step−Up Micropower Switching Regulator

ON Semiconductor 

NCP1400A

2 ms/div

VOUT = 3.0 V, VIN = 1.2 V, IO = 10 mA., L = 22 mH, COUT = 68 mF

1. VLX, 2.0 V/div

2. VOUT, 20 mV/div, AC coupled

3. IL, 100 mA/div

Figure 32. Operating Waveforms (Medium Load)

2 ms/div

VOUT = 3.0 V, VIN = 1.2 V, IO = 25 mA., L = 22 mH, COUT = 68 mF

1. VLX, 2.0 V/div

2. VOUT, 20 mV/div, AC coupled

3. IL, 100 mA/div

Figure 33. Operating Waveforms (Heavy Load)

VIN = 1.2 V, L = 22 mH

1. VOUT = 1.9 V (AC coupled), 50 mV/div

2. IO = 3.0 mA to 30 mA

Figure 34. NCP1400ASN19T1

Load Transient Response

VIN = 1.2 V, L = 22 mH

1. VOUT = 1.9 V (AC coupled), 50 mV/div

2. IO = 30 mA to 3.0 mA

Figure 35. NCP1400ASN19T1

Load Transient Response

VIN = 1.5 V, L = 22 mH

1. VOUT = 3.0 V (AC coupled), 50 mV/div

2. IO = 3.0 mA to 30 mA

Figure 36. NCP1400ASN30T1

Load Transient Response

VIN = 1.5 V, L = 22 mH

1. VOUT = 3.0 V (AC coupled), 50 mV/div

2. IO = 30 mA to 3.0 mA

Figure 37. NCP1400ASN30T1

Load Transient Response

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