ncp1400a ON Semiconductor, ncp1400a Datasheet - Page 10

• Manufacturer Part Number: ncp1400a
• Description: 100ma, Fixed Frequency Pwm Step-up Micropower Switching Regulator
• Manufacturer: ON Semiconductor

V
1. V
2. V
3. I
OUT
Figure 32. Operating Waveforms (Medium Load)
L
LX
OUT
, 100 mA/div
= 3.0 V, V
, 2.0 V/div
, 20 mV/div, AC coupled
V
1. V
2. I
IN
V
1. V
2. I
IN
= 1.2 V, L = 22 mH
O
Figure 34. NCP1400ASN19T1
Figure 36. NCP1400ASN30T1
OUT
IN
= 3.0 mA to 30 mA
Load Transient Response
= 1.5 V, L = 22 mH
Load Transient Response
O
OUT
= 3.0 mA to 30 mA
= 1.2 V, I
= 1.9 V (AC coupled), 50 mV/div
= 3.0 V (AC coupled), 50 mV/div
O
2 ms/div
= 10 mA., L = 22 mH, C
OUT
= 68 mF
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NCP1400A
10
V
1. V
2. V
3. I
OUT
L
LX
OUT
, 100 mA/div
Figure 33. Operating Waveforms (Heavy Load)
= 3.0 V, V
, 2.0 V/div
, 20 mV/div, AC coupled
V
1. V
2. I
V
1. V
2. I
IN
IN
IN
Figure 35. NCP1400ASN19T1
Figure 37. NCP1400ASN30T1
= 1.2 V, L = 22 mH
O
OUT
= 1.5 V, L = 22 mH
O
= 1.2 V, I
Load Transient Response
Load Transient Response
= 30 mA to 3.0 mA
OUT
= 30 mA to 3.0 mA
= 1.9 V (AC coupled), 50 mV/div
= 3.0 V (AC coupled), 50 mV/div
O
= 25 mA., L = 22 mH, C
2 ms/div
OUT
= 68 mF