MAX1902EAI+ Maxim Integrated Products, MAX1902EAI+ Datasheet - Page 2

• Manufacturer Part Number: MAX1902EAI+
• Description: IC CNTRLR PWR SPLY LN 28-SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1902EAI+

• Applications: Controller, Notebook Computers
• Voltage - Input: 4.2 ~ 30 V
• Number Of Outputs: 4
• Voltage - Output: 2.5 ~ 5 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Output Voltage: 3.3 V or 5 V or 2.5 V to 5.5 V
• Output Current: 5 A
• Input Voltage: 4.2 V to 30 V
• Supply Current: 5 uA
• Switching Frequency: 500 KHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +36V
PGND to GND.....................................................................±0.3V
V
BST3, BST5 to GND ..............................................-0.3V to +36V
CSH3, CSH5 to GND................................................-0.3V to +6V
FB3 to GND ..............................................-0.3V to (CSL3 + 0.3V)
FB5 to GND ...............................................-0.3V to (CSL5 +0.3V)
LX3 to BST3..............................................................-6V to +0.3V
LX5 to BST5..............................................................-6V to +0.3V
REF, SYNC, SEQ, STEER, SKIP,
V
RUN/ON3, SHDN to GND.............................-0.3V to (V+ + 0.3V)
12OUT to GND ..........................................-0.3V to (V
DL3, DL5 to PGND........................................-0.3V to (V
500kHz Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
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 = V
values are at T
2
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
L
DD
to GND ................................................................-0.3V to +6V
TIME/ON5, SECFB, RESET to GND ........-0.3V to (V
_______________________________________________________________________________________
to GND. ...........................................................-0.3V to +20V
A
PARAMETER
= +25°C.)
L
, V
L
load = 0, REF load = 0, SKIP = 0, T
V+ = 4.2V to 30V, CSH3 - CSL3 = 0,
CSL3 tied to FB3
V+ = 4.2V to 30V, 0 < CSH3 - CSL3
< 80mV, FB3 = 0
V+ = 4.2V to 30V, CSH5 - CSL5 = 0,
CSL5 tied to FB5
V+ = 5.3V to 30V, 0 < CSH5 - CSL5
< 80mV, FB5 = 0
Either SMPS
Dual-mode comparator
Either SMPS, 0 < CSH_ - CSL_ < 80mV
Either SMPS, 5.2V < V+ < 30V
CSH3 - CSL3 or CSH5 - CSL5
SKIP = V
SKIP = 0, not tested
From enable to 95% full current limit with
respect to f
SYNC = V
SYNC = 0
DD
L
L
+ 0.3V)
+ 0.3V)
+ 0.3V)
L
L
or V
OSC
DD
CONDITIONS
(Note 1)
< 13V or SECFB < 2.44V
DH3 to LX3 ..............................................-0.3V to (BST3 + 0.3V)
DH5 to LX5 ..............................................-0.3V to (BST5 + 0.3V)
V
12OUT Short to GND..................................................Continuous
REF Current...........................................................+5mA to -1mA
V
12OUT Current . .............................................................+200mA
V
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range ............................-65°C to +160°C
Lead Temperature (soldering, 10s) ................................+300°C
L
L
DD
, REF Short to GND ................................................Momentary
Current.........................................................................+50mA
28-Pin SSOP (derate 9.52mW/°C above +70°C) ......762mW
32-Pin Thin QFN (derate 21.3mW/°C above +70°C) ..1702mW
Shunt Current. ...........................................................+15mA
A
= 0°C to +85°C, unless otherwise noted. Typical
MIN
2.42
3.20
2.42
4.85
REF
450
283
4.2
0.5
-50
80
10
A
= +70°C)
TYP
3.39
5.13
0.03
-100
100
512
500
333
2.5
2.5
25
-2
MAX
30.0
2.58
3.47
2.58
5.25
-150
120
550
383
5.5
1.1
40
UNITS
%/V
clks
kHz
mV
mV
%
V
V
V
V
V
V
V