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NJU7631 Arkusz danych(PDF) 4 Page - New Japan Radio

Numer części NJU7631
Szczegółowy opis  Step-Down Switching Regulator IC with Power Saving PWM/PFM control
PDF  9 Pages
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Producent  NJRC [New Japan Radio]
Strona internetowa  http://www.jrc.co.jp/eng/index.html
Logo NJRC - New Japan Radio

NJU7631 Arkusz danych(HTML) 4 Page - New Japan Radio

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NJU7631
- 4 -
Ver.2012-08-03
■ ELECTRICAL CHARACTERISTICS
(V+=3.3V, RT=47kΩ, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
Error Amplifier Block
Reference Voltage
VB
-1.0%
1.00
+1.0%
V
Input Bias Current
IB
-0.1
–
0.1
µA
Open Loop Gain
AV
–
80
–
dB
Gain Bandwidth Product
GB
–
1
–
MHz
IOM+_1
VFB=1V, VIN-=0.9V
25
55
95
mA
Output Source Current
IOM+_2
VFB=1V, VIN-=0.9V, V
+=2.2V
4
9
16
mA
Output Sink Current
IOM-
VFB=1V, VIN-=1.1V
0.10
0.16
0.22
mA
PWM Comparate Block
VT_25
Duty= PFMDUTY
0.29
0.35
0.41
V
Input Threshold Voltage
VT_50
Duty=50%
0.44
0.5
0.56
V
MAXDUTY_1 VFB=0.9V
100
–
–
%
Maximum Duty Cycle
MAXDUTY_2 VFB=0.9V, RDTC=47kΩ
40
50
60
%
PWM/PFM Change Duty Cycle
PFMDUTY
17
25
33
%
Output Block
Output High Level
ON Resistance
ROH
IO=-20mA
–
10
20
Ω
Output Low Level
ON Resistance
ROL
IO=+20mA
–
5
10
Ω
General Characteristics
Quiescent Current
IDD
RL=Non Load
–
800
1200
µA



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