MB3776A Datasheet, PDF (8/16 Pages) Fujitsu Component Limited. – Switching Regulator Controller

MB3776A
s TYPICAL CHARACTERISTIC
Output bias current vs. Output source current
-50
VCC = 2 V
Ta = +25˚C
-40
-30
-20
-10
0
0 -100 -200 -300 -400 -500 -600 -700
Output bias current IB (mA)
"L" Level output
200
VCC = 2 V
RB = 820 Ω
Ta = +25˚C
100
Output bias current vs. Output bias voltage
1.0
VCC = 2 V
Ta = +25˚C
0.8
0.6
0.4
0.2
0
0 -100 -200 -300 -400 -500 -600 -700
Output bias current IB (mA)
"H" Level output
2.0
VCC = 2 V
RB = 820 Ω
Ta = +25˚C
1.0
0
0 2 4 6 8 10 12 14 16 18 20
"L" Level output current IO (mA)
Ambient temp. vs. Oscillator frequency
210
200
VCC = 2 V
190
RB = 820 Ω
CT = 1000 pF
RT = 3 kΩ
180
170
160
150
-30 -20 0 20 40 60 75
Ambient temp. Ta (˚C)
8
0.0
0
-6 -12 -18 -24 -30
"H" Level output current IO (mA)
Timing resistor vs. Oscillator frequency
2M
1M
500 k
VCC = 3 V
RB = 820 Ω
Ta = +25˚C
100 k
50 k
10 k
5k
CT =
1000 pF
CT =
10000 pF
CT = 100 pF
1k
1k
5 k 10 k 50 k 100 k 500 k
Timing resistor RT (Ω)
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