Datasheet

MAX8662/MAX8663
Power-Management ICs for
Single-Cell, Li+ Battery-Operated Devices
12 ______________________________________________________________________________________
OUT2 REGULATOR LINE-
TRANSIENT RESPONSE
MAX8662/63 toc37
100µs/div
V
OUT1
I
L
V
SYS
V
LX
200mA/div
1V/div
5V/div
20mV/div
I
OUT1
= 10mA
PWM = 0
4V
5V
OUT2 REGULATOR LINE REGULATION
MAX8662/63 toc32
V
SYS
(V)
OUTPUT VOLTAGE (V)
5.14.3 4.73.93.1 3.5
1.304
1.302
1.306
1.308
1.310
1.300
2.7 5.5
R
LOAD
= 130
Ω
OUT2 VOLTAGE vs. TEMPERATURE
MAX8662/63 toc33
AMBIENT TEMPERATURE (
°
C)
OUTPUT VOLTAGE (V)
603510-15
1.3035
1.3040
1.3045
1.3050
1.3030
-40 85
V
BAT
= 4.0V
R
LOAD
= 130
Ω
OUT2 REGULATOR LIGHT-LOAD
SWITCHING WAVEFORMS
MAX8662/63 toc34
10µs/div
V
OUT2
AC-COUPLED
I
L
V
LX
20mV/div
100mA/div
2V/div
V
BAT
= 4.0V
I
OUT2
= 10mA
PWM = 0
OUT2 REGULATOR HEAVY-LOAD
SWITCHING WAVEFORMS
MAX8662/63 toc35
1µs/div
V
OUT2
AC-COUPLED
I
L
V
L
10mV/div
500mA/div
2V/div
V
BAT
= 4.0V
I
OUT2
= 900mA
OUT2 REGULATOR LOAD-
TRANSIENT RESPONSE
MAX8662/63 toc36
40µs/div
I
OUT2
V
OUT2
AC-COUPLED
I
L
V
LX
50mV/div
500mA/div
5V/div
1A/div
V
BAT
= 4.0V
I
OUT2
= 10mA TO 900mA TO 10mA
PWM = 0
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V
DC
= 5V, R
PSET
= 1.5kΩ, R
ISET
= 3kΩ, V
OUT1
= 3.3V, V
OUT2
= 1.3V, SL1 = SL2 = open, V
CEN
= 0V, V
PEN1
=
V
PEN2
= 5V, C
OUT1
= 2 x 10µF, C
OUT2
= 2 x 10µF, C
OUT3
= 0.1µF, C
OUT4
= 4.7µF, C
OUT5
= 1µF, C
OUT6
= 2.2µF, C
OUT7
= 1µF, CT =
0.068µF, C
REF
= C
VL
= 0.1µF, R
THM
= 10kΩ, L1 = 3.3µH, L2 = 4.7µH, L3 = 22µH, V
GND
= V
PG1
= V
PG2
= V
PG3
= 0V, T
A
= +25°C,
unless otherwise noted.)