Pmics with dynamic core for pdas and smart phones, Typical operating characteristics – Rainbow Electronics MAX1587A User Manual
Page 10
MAX1586A/MAX1586B/MAX1587A
High-Efficiency, Low-I
Q
PMICs with
Dynamic Core for PDAs and Smart Phones
10
______________________________________________________________________________________
Typical Operating Characteristics
(Circuit of Figure 5, V
IN
= 3.6V, T
A
= +25°C, unless otherwise noted.)
100
0.1
1
10
100
1000
10,000
90
80
70
60
50
40
REG1 3.3V OUTPUT EFFICIENCY
vs. LOAD CURRENT
MAX1586A/86B/87A toc01
LOAD CURRENT (mA)
EFFICIENCY (%)
V
IN
= 3.6V
V
IN
= 4.0V
V
IN
= 5.0V
100
40
0.1
10
100
1
1000
REG2 2.5V OUTPUT EFFICIENCY
vs. LOAD CURRENT
MAX1586A/86B/87A toc02
LOAD CURRENT (mA)
EFFICIENCY (%)
50
60
70
80
90
V
IN
= 3.6V
V
IN
= 4.0V
V
IN
= 5.0V
100
40
0.1
10
100
1
1000
REG3 1.3V OUTPUT EFFICIENCY
vs. LOAD CURRENT
MAX1586A/86B/87A toc03
LOAD CURRENT (mA)
EFFICIENCY (%)
50
60
70
80
90
V
IN
= 3.6V
V
IN
= 4.0V
V
IN
= 5.0V
100
40
0.1
10
100
1
1000
REG3 1.3V OUTPUT WITH FORCED-PWM
EFFICIENCY vs. LOAD CURRENT
MAX1586A/86B/87A toc04
LOAD CURRENT (mA)
EFFICIENCY (%)
50
60
70
80
90
V
IN
= 3.6V
V
IN
= 5.0V
V
IN
= 4.0V
REG1 SLEEP LDO 3.3V OUTPUT
EFFICIENCY vs. LOAD CURRENT
MAX1586A/86B/87A toc05
LOAD CURRENT (mA)
EFFICIENCY (%)
100
40
50
60
70
80
90
0.1
1
10
V
IN
= 3.6V
V
IN
= 4.0V
V
IN
= 5.0V
REG2 SLEEP LDO 2.5V OUTPUT
EFFICIENCY vs. LOAD CURRENT
MAX1586A/86B/87A toc06
LOAD CURRENT (mA)
EFFICIENCY (%)
90
30
40
50
60
70
80
0.1
1
10
V
IN
= 3.6V
V
IN
= 4.0V
V
IN
= 5.0V
0
20
140
100
180
220
0
2
1
3
4
5
QUIESCENT CURRENT
vs. SUPPLY VOLTAGE
MAX1586A/86B/87A toc07
INPUT VOLTAGE (V)
INPUT CURRENT (
µ
A)
BKBT BIASED AT 3.6V
V1, V2, AND V3 ON
V1 AND V2 ON
V1 ON
V1 AND V2 SLEEP
V1 SLEEP
ALL BUT V7 OFF
200
160
40
60
80
120
0
100
50
200
150
250
300
0
400
200
600
800
1000
1200
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX1586A/86B/87A toc08
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
REG1 3.3V OUTPUT
-100
0
-50
100
50
150
200
0
400
200
600
800
1000
1200
CHANGE IN OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX1586A/86B/87A toc09
LOAD CURRENT (mA)
CHANGE IN OUTPUT VOLTAGE (mV)
V
IN
= 3.6V
REG1 3.3V OUTPUT
REG3 1.3V OUTPUT
REG2 2.5V OUTPUT