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| MAX1589A Datasheet, PDF (4/12 Pages) Maxim Integrated Products – Low-Input-Voltage, 500mA LDO Regulator with RESET in SOT and TDFN | |||
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Low-Input-Voltage, 500mA LDO Regulator
with RESET in SOT and TDFN
Typical Operating Characteristics (continued)
(VIN = (VOUT + 0.5V) or 1.8V, whichever is greater; SHDN = IN, CIN = 1µF, COUT = 4.7µF, TA = +25°C, unless otherwise noted.)
DROPOUT VOLTAGE
vs. LOAD CURRENT
200
160
120
VOUT = +1.8V
80
VOUT = +3.0V
40
0
0
100 200 300 400 500
LOAD CURRENT (mA)
LINE-TRANSIENT RESPONSE
MAX1589A toc09
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
80
VOUT = +1.5V
70
VOUT = +0.75V
60
VOUT = +3.0V
50
40
30
20
10
IOUT = 10mA
0
0.1
1
10
100
1000
FREQUENCY (kHz)
LINE-TRANSIENT RESPONSE
NEAR DROPOUT
MAX1589A toc10
4V
VIN
3.5V
500mV/div
2.5V
VIN
1.8V
500mV/div
VOUT
ILOAD = 100mA
VOUT = 1.5V
40µs/div
1.5V
10mV/div
AC-COUPLED
LOAD-TRANSIENT RESPONSE
MAX1589A toc11
VOUT
ILOAD = 100mA
VOUT = 1.5V
40µs/div
1.5V
10mV/div
AC-COUPLED
LOAD-TRANSIENT RESPONSE
MAX1589A toc12
200mA
IOUT
20mA
200mA/div
500mA
IOUT
100mA
500mA/div
VOUT 0
20mV/div
AC-COUPLED
VOUT
50mV/div
AC-COUPLED
VIN = 1.8V
VOUT = 1.5V
20µs/div
VIN = 3.6V
VOUT = 1.5V
20µs/div
4 _______________________________________________________________________________________
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