MAX1964 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX1964 Datasheet PDF : 30 Pages
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Tracking/Sequencing Triple/Quintuple
Power-Supply Controllers
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = 12V, VOUT = 3.3V, TA = +25°C, unless otherwise noted.)
POSITIVE LINEAR REGUALTOR
OUTPUT VOLTAGE vs. LOAD CURRENT
(QLDO = TIP30)
2.50
2.48
VSUP(POS) = 5.0V
2.46
VSUP(POS) = 3.3V
2.44
2.42
0.01
0.1
1
10 100 1000
LOAD CURRENT (mA)
POSITIVE LINEAR REGULATOR
OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
(QLDO = TIP30)
2.50
2.48
IOUT2 = 1mA
2.46
IOUT2 = 100mA
2.44
2.42
2
4
6
8
10
12
SUPPLY VOLTAGE (V)
POSITIVE LINEAR REGULATOR
POWER-SUPPLY REJECTION RATIO
(QLDO = TIP30)
80
70
60
50
40
30
20
10 IOUT2 = 150mA
0
0.1
1
10
100
1000
FREQUENCY (kHz)
250mA
0
POSITIVE LINEAR REGULATOR
LOAD TRANSIENT
(QLDO = TIP30)
MAX1964/65 toc19
A
2.473V
B
2.453V
10µs
A. IOUT2 = 10mA TO 250mA, 200mA/div
B. VOUT2 = 2.5V, 10mV/div
CLDO(POS) = 10µF CERAMIC, VSUP(POS) = 3.3V
CIRCUIT OF FIGURE 1
NEGATIVE LINEAR REGULATOR BASE-
DRIVE CURRENT vs. BASE-DRIVE VOLTAGE
45
VFB5 = 250mV
40
35
30
VFB5 = 50mV
25
20
15
10
5
0
0
VOUT = 5.0V
VOUT = 3.3V
B5 (MAX1965) ONLY
2
4
6
8
10
VOUT - VB5 (V)
-12.00
-12.06
NEGATIVE LINEAR REGULATOR
OUTPUT VOLTAGE vs. LOAD CURRENT
(QLDO = TIP29)
VSUP(NEG) = -15V
VOUT3 = 5V
-12.12
-12.18
-12.24
0.01
0.1
1
10
100 1000
LOAD CURRENT (mA)
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