NCP1421EVB ON Semiconductor, NCP1421EVB Datasheet - Page 5

• Manufacturer Part Number: NCP1421EVB
• Description: EVAL BOARD FOR NCP1421
• Manufacturer: ON Semiconductor

Specifications of NCP1421EVB

• Design Resources: NCP1421 Demo Board BOM NCP1421EVB Gerber Files NCP1421 Demo Board Schematic
• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 3.3V or 5V
• Current - Output: 600mA
• Voltage - Input: 3V
• Regulator Topology: Boost
• Frequency - Switching: 1.2MHz
• Board Type: Fully Populated
• Utilized Ic / Part: NCP1421
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: NCP1421
• Other names: NCP1421EVBOS

1.220
1.210
1.200
1.190
1.180
1.205
1.200
1.195
1.190
1.185
1.180
1.0
0.9
0.8
0.7
0.6
0.5
Figure 6. L
−40
−40
Figure 4. Reference Voltage vs. Temperature
1
Figure 2. Reference Voltage vs. Output Current
V
L = 10 mH
C
C
C
T
A
OUT
IN
OUT
REF
= 25_C
−20
−20
= 22 mF
= 3.3 V
= 1.0 mF
= 22 mF
X
Switch Max. ON Time vs. Temperature
AMBIENT TEMPERATURE, T
AMBIENT TEMPERATURE, T
OUTPUT CURRENT, I
0
0
10
20
20
TYPICAL OPERATING CHARACTERISTICS
40
40
V
IN
LOAD
= 2.0 V
100
V
C
I
60
60
V
/mA
REF
OUT
REF
A
A
IN
/ C
/ C
= 1.5 V
= 0 mA
V
= 200 nF
= 3.3 V
IN
80
80
= 2.5 V
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NCP1421
1000
100
100
5
1.180
1.220
1.210
1.200
1.190
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.6
1.4
1.1
0.9
0.6
Figure 3. Reference Voltage vs. Voltage at OUT Pin
1.5
−40
0
Figure 5. Switch ON Resistance vs. Temperature
Figure 7. Minimum Startup Battery Voltage vs.
C
I
T
REF
A
REF
V
= 25 C
OUT
−20
2
= 0 mA
OUTPUT LOADING CURRENT, I
= 200 nF
50
= 3.3 V
AMBIENT TEMPERATURE, T
VOLTAGE AT OUT PIN, V
2.5
0
Loading Current
100
20
3
P−FET (M2)
3.5
40
150
N−FET (M1)
OUT
60
4
LOAD
A
/V
/ C
200
T
/mA
A
4.5
80
= 25 C
100
250
5