MAX888ECJ Maxim, MAX888ECJ Datasheet - Page 6

• Manufacturer Part Number: MAX888ECJ
• Description: Wireless and Satellite Handset Power-Management ICs
• Manufacturer: Maxim

Wireless and Satellite Handset
Power-Management ICs
(Circuit of Figure 2, REG0 to REG5 outputs at POR states, V
T
6
A
= +25°C, unless otherwise noted.)
100
100
_______________________________________________________________________________________
90
80
70
60
140
50
90
80
70
60
50
120
100
80
60
40
20
0
1
1
0
REG0 EFFICIENCY vs. LOAD CURRENT
REG3
REG0 EFFICIENCY vs. LOAD CURRENT
V
V
PFM, 375kHz
PFM, 925kHz
IN1
IN3
20 40 60 80 100 120 140 160 180 200
= V
= 2.85V
IN2
REG5
PFM, 375kHz
DROPOUT VOLTAGE
vs. LOAD CURRENT
= V
LOAD CURRENT (mA)
PFM, 925kHz
LOAD CURRENT (mA)
LOAD CURRENT (mA)
10
10
(V
IN5
(V
BATT
BATT
MAX886
= 3.3V
MAX888
PWM, 375kHz
= 8.4V)
= 4.2V)
PWM, 925kHz
REG2
PWM, 925kHz
REG1
100
100
PWM, 375kHz
1,000
1,000
100
100
5.28
5.26
5.24
5.22
5.20
5.18
5.16
5.14
5.12
90
80
70
60
50
90
80
70
60
50
1
1
0
REG0 EFFICIENCY vs. LOAD CURRENT
PFM, 925kHz
PFM, 375kHz
REG0 EFFICIENCY vs. LOAD CURRENT
PFM, 925kHz
20
OUT0
REG4 OUTPUT VOLTAGE
PFM, 375kHz
vs. LOAD CURRENT
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
10
(V
10
(V
= 3.75V, V
BATT
MAX886
40
PWM, 925kHz
BATT
MAX888
PWM, 375kHz
PWM, 375kHz
= 5.4V)
= 2.7V)
Typical Operating Characteristics
60
PWM, 925kHz
100
100
OUT4
V
IN4
80
= 3.75V
= 5.25V, V
1,000
1,000
100
OUT1
10
10
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
= V
2
2
2
R1, R2, R3 NOT CONNECTED
OUT2
3
3
NO-LOAD BATTERY CURRENT
NO LOAD BATTERY CURRENT
4
4
vs. BATTERY VOLTAGE
vs. BATTERY VOLTAGE
vs. BATTERY VOLTAGE
SHUTDOWN CURRENT
3
= V
PWM, 925kHz
BATTERY VOLTAGE (V)
BATTERY VOLTAGE (V)
BATTERY VOLTAGE (V)
5
5
OUT3
6
6
MAX888
MAX886
PWM, 375kHz
4
7
7
PFM MODE
= V
PWM, 375kHz
PFM MODE
8
8
PWM, 925kHz
OUT5
9
9
5
10
10
= 3.3V,
11
11
12
12
6