NCP1421EVB ON Semiconductor, NCP1421EVB Datasheet - Page 2

• 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

LBI/EN
REF
FB
1
4
2
0.5 V
Enable
Reference
Chip
Voltage
1.20 V
+
−
PFM
+
−
ZLC
CONTROL LOGIC
_ZCUR
_MSON
_CEN
_PFM
_V
REFOK
Figure 1. Detailed Block Diagram
_MAINSWOFD
_MAINSW2ON
−
+
_SYNSW2ON
_SYNSWOFD
_ILIM
20 mV
_TSDON
http://onsemi.com
+
NCP1421
2
−
+
TRUE CUTOFF
CONTROL
GND
V
DD
+
GND
GND
V
DD
R
M1
SENSE
SENSEFETt
GND
M2
M3
V
DD
LBO
BAT
LX
OUT
3
5
7
8
6
GND
V
BAT
V
OUT