Typical operating characteristics (continued) – Rainbow Electronics MAX8982X User Manual
Page 24
Power-Management ICs for
ICERA E400/E450 Platform
MAX8982A/MAX8982X
24
Typical Operating Characteristics (continued)
(MAX8982A: V
IN1A
= V
IN1B
= 5V, MAX8982X: V
IN1A
= V
IN1B
= V
DDA
= V
DDB
= V
IN4
= 3.3V, C
REFBP
= 0.1µF, T
A
= -40°C to +85°C,
Circuits of Figures 2 and 3, unless otherwise noted. Typical values are at T
A
= +25°C.
Limits are 100% production tested at T
A
= +25NC,
unless otherwise noted. Limits over the temperature range are guaranteed by design.)
LDO7 LOAD REGULATION
MAX8982A toc29
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
80
60
20
40
2.990
2.995
3.000
3.005
3.015
3.010
3.020
3.025
2.985
0
100
LDO8 LOAD REGULATION
(MAX8982A ONLY)
MAX8982A toc30
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
80
60
40
20
2.990
2.995
3.000
3.005
3.010
3.015
3.020
2.985
0
100
LDO9 LOAD REGULATION
MAX8982A toc31
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
80
60
40
20
0.902
0.900
0
100
LED CURRENT ACCURACY
vs. LED CURRENT SETTING
MAX8982A toc32
LED CURRENT (mA)
LED CURRENT ACCURACY (%)
20
15
10
5
-2
0
2
4
6
8
10
-4
0
25
LED3
LED2
LUMEX SML-LX2832SISUGSBC
LED FLASH WAVEFORMS
MAX8982A toc33
24mA
24mA
0A
0A
I
LED2
I
LED3
1s/div
OVERVOLTAGE PROTECTION
MAX8982A toc34
5V/div
1V/div
1V/div
2V/div
0V
0V
0V
0V
V
IN_
V
BUCK1
V
BUCK2
V
LDO1
400µs/div