MAX1537ETX-T Maxim Integrated, MAX1537ETX-T Datasheet - Page 2
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MAX1537ETX-T
Manufacturer Part Number
MAX1537ETX-T
Description
Current & Power Monitors & Regulators
Manufacturer
Maxim Integrated
Datasheet
1.MAX1537ETX-T.pdf
(38 pages)
ABSOLUTE MAXIMUM RATINGS
IN, SHDN, INA, LDOA to GND ...............................-0.3V to +30V
GND to PGND .......................................................-0.3V to +0.3V
LDO5, LDO3, V
ILIM3, ILIM5, PGDLY to GND...................................-0.3V to +6V
CSL3, CSH3, CSL5, CSH5 to GND ..........................-0.3V to +6V
ON3, ON5, FB3, FB5 to GND ..................................-0.3V to +6V
SKIP, OVP, UVP to GND...........................................-0.3V to +6V
PGOOD, FSEL, ADJA, ONA to GND ........................-0.3V to +6V
REF to GND ................................................-0.3V to (V
DL3, DL5 to PGND..................................-0.3V to (V
BST3, BST5 to PGND .............................................-0.3V to +36V
LX3 to BST3..............................................................-6V to +0.3V
DH3 to LX3 ..............................................-0.3V to (V
High-Efficiency, 5x Output, Main Power-Supply
Controllers for Notebook Computers
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
I
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.
2
LDO5
INPUT SUPPLIES (Note 1)
V
V
V
V
Quiescent Power Consumption
V
MAIN SMPS CONTROLLERS
3.3V Output Voltage in Fixed
Mode
5V Output Voltage in Fixed Mode
Feedback Voltage in Adjustable
Mode
Output-Voltage Adjust Range
FB3, FB5 Dual-Mode Threshold
Feedback Input Leakage Current
DC Load Regulation
IN
IN
IN
IN
CC
_______________________________________________________________________________________
Input Voltage Range
Operating Supply Current
Standby Supply Current
Shutdown Supply Current
Quiescent Supply Current
= I
LDO3
PARAMETER
= I
CC
LDOA
to GND .......................................-0.3V to +6V
IN
= no load, T
= 12V, both SMPS enabled, V
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
SYMBOL
I
I
IN(SHDN)
IN(STBY)
V
V
V
OUT3
OUT5
V
I
P
I
CC
FB_
IN
IN
Q
LDO5
BST3
LDO5 in regulation
IN = LDO5, V
LDO5 switched over to CSL5
V
includes I
V
Both SMPS on, FB3 = FB5 = SKIP = GND,
V
I
Both SMPS on, FB3 = FB5 = GND,
V
V
V
V
duty factor = 20% to 80% (Note 2)
Either SMPS
V
Either SMPS, SKIP = V
I
LDOA
LOAD
IN
IN
CSL3
CSL3
IN
IN
IN
FB3
CC
CC
= 6V to 26V, both SMPS off,
= 6V to 26V, SHDN = GND
= 6V to 26V, SKIP = V
= 6V to 26V, SKIP = V
= 6V to 26V, FB3 or FB5,
+ 0.3V)
+ 0.3V)
+ 0.3V)
= V
= 0, P
= 5V, FSEL = REF, SKIP = GND, V
= 0 to full load
= 3.5V, V
= 3.5V, V
FB5
SHDN
IN
= 1.1V
OUT5
CONDITIONS
+ P
CSL5
CSL5
CSL3
LX5 to BST5..............................................................-6V to +0.3V
DH5 to LX5 ..............................................-0.3V to (V
LDO3, LDO5 Short Circuit to GND .............................Momentary
REF Short Circuit to GND ...........................................Momentary
INA Shunt Current.............................................................+15mA
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
< 4.43V
32-Pin TQFN (derate 21.3mW/°C above +70°C) .......1702mW
36-Pin TQFN (derate 26.3mW/°C above +70°C) .......2105mW
= 5.3V, V
= 5.3V
CC
+ P
,
CC
CC
CSL5
(Note 2)
(Note 2)
INA
+ P
= 15V,
INA
ILIM_
3.280
4.975
0.990
= V
MIN
-0.1
4.5
1.0
0.1
6
A
LDO5
A
= +25°C.)
= +70°C)
, V
1.005
TYP
3.33
5.05
-0.1
100
3.5
1.1
15
INA
5
= 15V, V
3.380
5.125
1.020
MAX
+0.1
170
5.5
4.5
2.1
5.5
0.2
26
35
17
BST5
LDOA
UNITS
+ 0.3V)
mW
= 12V,
mA
µA
µA
µA
µA
%
V
V
V
V
V
V