Rainbow Electronics MAX8982X - Manual (Page 16)

Power-Management ICs for
ICERA E400/E450 Platform
MAX8982A/MAX8982X
16
OUT8 (LDO8) ELECTRICAL CHARACTERISTICS
(MAX8982A only, V IN4 = V IN1_ = +5.0V, C IN4 = 1.0FF, C REFBP = 0.1FF, C OUT8 = 1FF, T A = -40NC to +85NC, unless otherwise noted.
Typical values are at T A = +25NC.) (Note 3)
OUT9 (LDO9) ELECTRICAL CHARACTERISTICS
(MAX8982A/MAX8982X: V IN3 = V BUCK2 = 1.8V, C IN3 = 2.2FF, C REFBP = 0.1FF, C OUT9 = 2.2FF, T A = -40NC to +85NC, unless other-
wise noted. Typical values are at T A = +25NC.) (Note 3)
PARAMETER CONDITION MIN TYP MAX UNITS
Input Operating Range Guaranteed by output voltage accuracy 3.0 5.5 V
Overvoltage Lockout
(Shutdown LDO8 Output)
V IN4 rising, V IN1_ = V IN4 5.75 5.93 V
Overvoltage Hysteresis 250 mV
Default Output Voltage I LOAD = 50mA 2.91 3.00 3.09 V
Maximum Output Current 150 mA
Current Limit (Note 4) V OUT8 = 90% of its regulation 165 360 650 mA
Dropout Voltage (Note 4) 100mA, T A = +85NC 150 300 mV
Line Regulation 3.4V P V IN4
P 5.5V, V
OUT8
= 3.1V, I
LOAD
= 100mA 2.2 mV
Load Regulation 50FA < I LOAD < 150mA 25 mV
Power-Supply Rejection
D
V OUT /DV IN
f = 10Hz to 10kHz, I LOAD = 30mA 60 dB
Output Noise Voltage (RMS) 100Hz to 100kHz, I LOAD = 30mA 45 F V RMS
Programmable Output Voltage I LOAD = 50mA
3.00
V
3.10
3.20
3.30
Startup Time from Shutdown
(Note 4)
I LOAD = 150mA 100 F s
Startup Transient Overshoot
(Note 4)
I
LOAD
= 150mA 50 mV
Shutdown Output Impedance
(Active Discharge Resistance)
I 2 C programmable, default off 100 I
PARAMETER CONDITION MIN TYP MAX UNITS
Default Output Voltage ±I LOAD = 10mA, V IN3 = 1.8V 0.873 0.900 0.927 V
Maximum Output Current 50 mA
Current Limit (Note 4) V OUT9 = 90% of its regulation 55 120 220 mA
Load Regulation 50FA < I LOAD < 50mA 25 mV
Power-Supply Rejection
D
V OUT /DV IN
f = 10Hz to 10kHz, I LOAD = 10mA 60 dB
Output Noise Voltage 100Hz to 100kHz, I LOAD = 10mA 45
F
V RMS
Programmable Output Voltage I LOAD = 10mA
0.80
V
0.90
1.00
1.10
1.20
Startup Time from Shutdown
(Note 4)
I LOAD = 50mA 100 F s