MAS9164(2002) Ver la hoja de datos (PDF) - Micro Analog Systems Oy
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MAS9164 Datasheet PDF : 10 Pages
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DA9164.004
12 April, 2002
DETAILED DESCRIPTION
TA = +27°C, VIN = VOUT(NOM) + 1 V, IOUT = 1 mA, CIN = 1.0 µF, CL = 1.0 µF, VCTRL = 2 V, unless otherwise specified.
MAS9164 typical start-up, Vin = 2.8 V, CL = 1uF
2
5
1.8
1.6
4
1.4
1.2
3
VOUT
1
CTRL
0.8
2
0.6
0.4
1
0.2
0
0
0
500
1000
1500
2000
2500
Time (us)
Figure 2. Typical start-up.
MAS9164 ground pin current vs. load current and
temperature, Vin = 2.8 V
70
60
50
40
T=25C
T=-40C
30
T=85C
20
10
0
0
5
10
15
20
25
30
35
40
45
50
Load current (mA)
Figure 5. Ground pin current vs. load current and temperature.
MAS9164 load transient, Iout = 1..50 mA (10 us change
time), Vin = 2.8 V, CL = 1 uF
1.91
250
1.86
200
1.81
150
Vout
Iout
1.76
100
1.71
50
1.66
0
0
200
400
600
800
1000
1200
1400
1600
Time (us)
Figure 3. Load transient response.
MAS9164 typical output voltage vs. load current and
temperature, Vin = 2.8 V
1.802
1.8
1.798
1.796
T=25C
1.794
T=-40C
T=85C
1.792
1.79
1.788
1.786
0
5
10
15
20
25
30
35
40
45
50
Load current (mA)
Figure 4. Output voltage vs. load current and temperature.
MAS9164 output voltage vs. load current and temperature
(operation of the current limiter), Vin = 2.8 V
2
1.8
1.6
1.4
1.2
T=25C
1
T=-40
T=85C
0.8
0.6
0.4
0.2
0
0
20
40
60
80
100
120
140
Load current (mA)
Figure 6. Output voltage vs. load current (the operation of the
current limiter).
MAS9164 typical PSRR, Vin = 2.8 V, CL = 1 uF
70
60
50
40
PSRR(Iout = 6.5 mA)
PSRR (Iout = 50 mA)
30
20
10
0
0.1
1
10
100
1000
Frequency (kHz)
Figure 7. PSRR vs. frequency. IOUT = 6.5 mA & 50 mA.
5 (10)
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