NCP1521AMUTBG ONSEMI [ON Semiconductor], NCP1521AMUTBG Datasheet - Page 2
NCP1521AMUTBG
Manufacturer Part Number
NCP1521AMUTBG
Description
1.5 MHz, 600 mA, High−Efficiency, Low Quiescent Current, Adjustable Output Voltage Step−Down Converter
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
1.NCP1521AMUTBG.pdf
(17 pages)
- Current page: 2 of 17
- Download datasheet (157Kb)
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 3. Efficiency vs. Output Current
Figure 4. 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
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