Mu lt i-Ou t p u t , Lo w -No is e P o w e r-S u p p ly
Co n t ro lle rs fo r No t e b o o k Co m p u t e rs
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,
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
SECFB, RESET to GND ............................................-0.3V to +6V
MAX163_CAI.......................................................0°C to +70°C
MAX163_EAI....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
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 + 0.3V)
Continuous Power Dissipation (T = +70°C)
DD
A
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)
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.
0–MAX1635
ELECTRICAL CHARACTERISTICS
(V+ = 15V, both PWMs on, SYNC = VL, VL load = 0mA, REF load = 0mA, SKIP = 0V, T = T
to T , unless otherwise noted.
MAX
A
MIN
Typical values are at T = +25°C.)
A
PARAMETER
MAIN SMPS CONTROLLERS
Input Voltage Range
CONDITIONS
MIN
TYP
MAX
UNITS
4.2
30.0
2.58
V
V
3V Output Voltage in
Adjustable Mode
V+ = 4.2V to 30V, CSH3–CSL3 = 0V,
CSL3 tied to FB3
2.42
2.5
3.39
2.5
V+ = 4.2V to 30V, 0mV < CSH3–CSL3 < 80mV,
FB3 = 0V
3V Output Voltage in Fixed Mode
3.20
2.42
4.85
3.47
2.58
5.25
V
V
V
5V Output Voltage in
Adjustable Mode
V+ = 4.2V to 30V, CSH5–CSL5 = 0V,
CSL5 tied to FB5
V+ = 5.2V to 30V, 0mV < CSH–CSL5 < 80mV,
FB5 = 0V
5V Output Voltage in Fixed Mode
5.13
Output Voltage Adjust Range
Adjustable-Mode Threshold Voltage
Load Regulation
Either SMPS
REF
0.5
5.5
1.1
V
V
Dual Mode comparator
Either SMPS, 0V < CSH_–CSL_ < 80mV
Either SMPS, 5.2V < V+ < 30V
CSH3–CSL3 or CSH5–CSL5
-2
%
Line Regulation
0.03
100
-100
%/V
80
-50
10
120
-150
40
Current-Limit Threshold
Idle Mode Threshold
Soft-Start Ramp Time
mV
mV
clks
SKIP = VL or V < 13V or SECFB < 2.44V
DD
25
SKIP = 0V, not tested
From enable to 95% full current limit with respect to
512
f
(Note 1)
OSC
SYNC = VL
270
170
97
300
200
98
330
230
Oscillator Frequency
Maximum Duty Factor
kHz
%
SYNC = 0V
SYNC = VL
SYNC = 0V (Note 2)
98
99
2
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
