Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
MAX1630–MAX1635
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +36V
PGND to GND.....................................................................±0.3V
VL to GND ................................................................-0.3V to +6V
BST3, BST5 to GND ...............................................-0.3V to +36V
LX3 to BST3..............................................................-6V to +0.3V
LX5 to BST5..............................................................-6V to +0.3V
REF, SYNC, SEQ, STEER,
SKIP,
TIME/ON5,
SECFB,
RESET
to GND ............................................-0.3V to +6V
V
DD
to GND ............................................................-0.3V to +20V
RUN/ON3,
SHDN
to GND.............................-0.3V to (V+ + 0.3V)
12OUT to GND ...........................................-0.3V to (V
DD
+ 0.3V)
DL3, DL5 to PGND........................................-0.3V to (VL + 0.3V)
DH3 to LX3 ...............................................-0.3V to (BST3 + 0.3V)
DH5 to LX5 ...............................................-0.3V to (BST5 + 0.3V)
VL, REF Short to GND ................................................Momentary
12OUT Short to GND..................................................Continuous
REF Current...........................................................+5mA to -1mA
VL Current.........................................................................+50mA
12OUT Current ...............................................................+200mA
V
DD
Shunt Current ............................................................+15mA
Operating Temperature Ranges
MAX163_CAI.......................................................0°C to +70°C
MAX163_EAI ....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Continuous Power Dissipation (T
A
= +70°C)
SSOP (derate 9.52mW/°C above +70°C) ....................762mW
Lead Temperature (soldering, 10sec) .............................+300°C
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.
ELECTRICAL CHARACTERISTICS
(V+ = 15V, both PWMs on, SYNC = VL, VL load = 0mA, REF load = 0mA,
SKIP
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.)
PARAMETER
MAIN SMPS CONTROLLERS
Input Voltage Range
3V Output Voltage in
Adjustable Mode
3V Output Voltage in Fixed Mode
5V Output Voltage in
Adjustable Mode
5V Output Voltage in Fixed Mode
Output Voltage Adjust Range
Adjustable-Mode Threshold Voltage
Load Regulation
Line Regulation
Current-Limit Threshold
Idle Mode Threshold
Soft-Start Ramp Time
Oscillator Frequency
Maximum Duty Factor
V+ = 4.2V to 30V, CSH3–CSL3 = 0V,
CSL3 tied to FB3
V+ = 4.2V to 30V, 0mV < CSH3–CSL3 < 80mV,
FB3 = 0V
V+ = 4.2V to 30V, CSH5–CSL5 = 0V,
CSL5 tied to FB5
V+ = 5.2V to 30V, 0mV < CSH–CSL5 < 80mV,
FB5 = 0V
Either SMPS
Dual Mode comparator
Either SMPS, 0V < CSH_–CSL_ < 80mV
Either SMPS, 5.2V < V+ < 30V
CSH3–CSL3 or CSH5–CSL5
SKIP
= VL or V
DD
< 13V or SECFB < 2.44V
SKIP
= 0V, not tested
From enable to 95% full current limit with respect to
f
OSC
(Note 1)
SYNC = VL
SYNC = 0V
SYNC = VL
SYNC = 0V (Note 2)
270
170
97
98
80
-50
10
4.2
2.42
3.20
2.42
4.85
REF
0.5
-2
0.03
100
-100
25
512
300
200
98
99
330
230
120
-150
40
2.5
3.39
2.5
5.13
30.0
2.58
3.47
2.58
5.25
5.5
1.1
V
V
V
V
V
V
V
%
%/V
mV
mV
clks
kHz
%
CONDITIONS
MIN
TYP
MAX
UNITS
2
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
