MAX8902B Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX8902B Datasheet PDF : 9 Pages
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MAX8902A/MAX8902B
Low-Noise 500mA LDO Regulators
in a 2mm x 2mm TDFN Package
Typical Operating Characteristics
(MAX8902A, VIN = 3.6V, VOUT = 2.5V, TA = +25°C, unless otherwise noted.)
140
120
100
80
60
40
20
0
0
QUIESCENT CURRENT
EN = HIGH, NO LOAD
1
2
3
4
5
INPUT VOLTAGE (V)
2.506
2.505
2.504
2.503
2.502
2.501
2.500
0
LOAD REGULATION
3.6V INPUT
100 200 300 400 500
LOAD CURRENT (mA)
2.510
2.508
2.506
2.504
2.502
2.500
2.498
2.496
2.494
2.492
2.490
1.5
LINE REGULATION
200mA LOAD
2.5
3.5
4.5
5.5
INPUT VOLTAGE (V)
LOAD TRANSIENT RESPONSE
50mA TO 500mA TO 50mA
MAX8902A/02B toc04
LINE TRANSIENT RESPONSE
MAX8902A/02B toc05
5V
5V
VEN
VOUT
100mV/div VIN
2V/div
4V
STARTUP WAVEFORM
MAX8902A/02B toc06
2V/div
500mV/div
VOUT
IOUT
tRISE = tFALL = 1μs
40ms/div
200mA/div
DROPOUT VOLTAGE vs. LOAD CURRENT
80
3.6V INPUT, 4.6V OUTPUT PRESET
70 THE SLOPE OF THE LINE INDICATES
A 129mΩ ON-RESISTANCE IN
60 DROPOUT
50
40
30
20
10
0
0
100 200 300 400 500
LOAD CURRENT (mA)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
10
2.5V OUTPUT
5Ω LOAD
10μs/div
PSRR vs. FREQUENCY
2mV/div
VOUT
IIN
200mA/div
5Ω LOAD
CBYP = 0.01μF
100μs/div
MAX8902A LDO OUTPUT-NOISE SPECTRAL
DENSITY vs. FREQUENCY
10E+3
1E+3
100E+0
100
1k
10k
FREQUENCY (Hz)
10E+0
100k
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
4
Maxim Integrated
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