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NJW4131R-B Datasheet(PDF) 6 Page - New Japan Radio

Part # NJW4131R-B
Description  Switching Regulator IC for Boost Converter
Download  20 Pages
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Manufacturer  NJRC [New Japan Radio]
Direct Link  http://www.jrc.co.jp/eng/index.html
Logo NJRC - New Japan Radio

NJW4131R-B Datasheet(HTML) 6 Page - New Japan Radio

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NJW4131
- 6 -
Ver.2012-08-03
CHARACTERISTICS
100
1000
10
100
Timing Resistor vs.Oscillation Frequency
(V+=12V, Ta=25oC)
Timing Resistor R
T
(k
Ω)
80
85
90
95
100
100
1000
Maximum Duty Cycle vs. Oscillator Frequency
(V+=12V, V
IN-
=0.9V, Ta=25oC)
Oscillator Frequency f
OSC
(kHz)
690
695
700
705
710
0
10
203040
Supply Voltage V
+ (V)
Oscillation Frequency vs. Supply Voltage
(R
T
=27k
Ω, Ta=25oC)
0.99
0.995
1
1.005
1.01
0
1020
3040
Supply Voltage V
+ (V)
Reference Voltage vs. Supply Voltage
(Ta=25oC)
0
1
2
3
4
010
20
30
40
Supply Voltage V
+ (V)
Quiescent Current vs. Supply Voltage
(R
T
=27k
Ω, R
L
=no load, V
IN-
=0.9V, V
FB
=0.65V, Ta=25
oC)
0
15
30
45
60
0
45
90
135
180
0.1
1
10
100
1000 10000
Error Amplifier Block
Voltage Gain, Phase vs. Frequency
(V
+=12V, Gain=40dB, Ta=25 oC)
Frequency f (kHz)
Phase
Gain


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