
M
Wireless and S atellite Handset
Power-Management ICs
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
BATT, IN0, IN1 to GND...........................................-0.3V to +13V
CVH to IN0................................................................-6V to +0.3V
PGND, DGND to GND...........................................-0.3V to +0.3V
ONSTAT to GND.....................................-0.3V to (V
OUT2
+ 0.3V)
LX to PGND.............................................-0.3V to (V
OUT0
+ 0.3V)
OUT1 to GND.............................................-0.3V to (V
IN1
+ 0.3V)
OUT2 to GND.............................................-0.3V to (V
IN2
+ 0.3V)
OUT3 to GND.............................................-0.3V to (V
IN3
+ 0.3V)
OUT5 to GND.............................................-0.3V to (V
IN5
+ 0.3V)
ELECTRICAL CHARACTERISTICS
(V
BATT
= V
IN0
= V
IN1
= +5.5V, GND = PGND = DGND, V
OFF
= V
SYNC
= 2.8V, V
IN2
= V
IN3
= V
IN4
= V
IN5
= +3.8V, V
OUT4
= +5.5V,
T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
SYNC,
RESET
, SCL, SDA, CVL, LBI, LBHYS, OUT0
REF,
LBO
, C+, C-, OUT4, IN2, IN3, IN4, IN5,
ON
,
OFF
to GND ...................................................-0.3V to +6V
Continuous Power Dissipation (T
A
= +70°C)
TQFP (derate 11.1mW/°C above +70°C)......................889mW
Operating Temperature Range. ......................... -40°C to +85°C
J unction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
V
OUT0
= 3.75V (MAX886),
V
OUT0
= 2.027V (MAX888)
MAX888
MAX886
I
OUT0
= 0
2.7V < V
OUT0
< 3.75V
f
OSC
= 375kHz
f
OSC
= 535kHz
f
OSC
= 670kHz
f
OSC
= 925kHz
1μA < I
REF
< 100μA
I
REF
= 0
SYNC = GND
V
BATT
falling
V
BATT
rising
CONDITIONS
% of
V
OUT0
Output Ready Threshold
-7.5
-5
-3
V
1.527
3.027
V
OUT0
Nominal Output Adjustment
Range
2.625
3.750
%
-3
3
Output Accuracy
V
2.7
12
V
IN0
Input Voltage Range
mV
0.2
5
Reference Supply Rejection
DC-DC BUCK REGULATOR 0 (IN0, OUT0)
mV
5
15
Reference Load Regulation
V
1.225
1.275
V
REF
Reference Output Voltage
1.23
1.25
1.27
V
2.7
5.5
V
IN2
, V
IN3
,
V
IN4
, V
IN5
IN2, IN3, IN4, IN5 Operating
Voltage Range
V
2.7
12
V
BATT
, V
IN0
,
V
IN1
BATT, IN0, IN1 Operating Voltage
Range
5
10
15
2
3
4
μA
250
600
I
BATTPFM
Supply Current, PFM Mode
V
V
2.35
2.45
2.55
V
UVLOF
V
UVLOR
2.65
Undervoltage Lockout
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
OFF
= GND
μA
I
STNBY
Supply Current, Shutdown Mode
T
A
= 0°C to +85°C
T
A
= -40°C to +85°C
T
A
= 0°C to +85°C
T
A
= -40°C to +85°C
mA
5.5
12
I
BATTPWM
Supply Current, PWM Mode
REFERENCE