NCP1521UEVB ON Semiconductor, NCP1521UEVB Datasheet - Page 2

• Manufacturer Part Number: NCP1521UEVB
• Description: EVAL BOARD FOR NCP1521U
• Manufacturer: ON Semiconductor

Specifications of NCP1521UEVB

• Design Resources: NCP1521UEVB BOM NCP1521UEVB Schematic NCP1521UEVB Gerber Files
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 0.9 ~ 3.3 V
• Current - Output: 600mA
• Voltage - Input: 3.6V
• Regulator Topology: Buck
• Frequency - Switching: 1.5MHz
• Board Type: Fully Populated
• Utilized Ic / Part: NCP1521
• 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: NCP1521U
• Other names: NCP1521UEVBOS

Vbattery
Enable
4.7 mF
GND
VIN
EN
1
2
3
SHUTDOWN
& THERMAL
CONTROL
100
LOGIC
90
80
70
60
50
0
CONTROL
PWM/PFM
Figure 2. Efficiency vs. Output Current
Figure 3. Simplified Block Diagram
100
REFERENCE
VOLTAGE
Q1
ILIMIT
http://onsemi.com
200
Q2
NCP1521
I
out
2
300
(mA)
400
V
V
T
A
out
in
LX
FB
= 25°C
5
4
= 4.2 V
= 3.3 V
500
2.2 mH
600
10 mF
R1
R2
18 pF