 English |
|
|
|
|
|
|
|
| MAX1515 Datasheet, PDF (2/24 Pages) Maxim Integrated Products – Low-Voltage, Internal Switch, Step-Down/DDR Regulator | |||
| |||
| ◁ |
Low-Voltage, Internal Switch,
Step-Down/DDR Regulator
ABSOLUTE MAXIMUM RATINGS
VCC, VDD, LX, SHDN to GND ...................................-0.3V to +4V
MODE, IC to GND ....................................................-0.3V to +4V
COMP, FB, REF, REFIN, REFOUT, PGOOD
to GND.........................................................-0.3V to (VCC + 0.3V)
FBSEL0, FBSEL1, TOFF, SKIP, SS to GND....-0.3V to (VCC + 0.3V)
VDD to VCC ...........................................................-0.3V to + 0.3V
IN to VDD ....................................................-0.3V to (VDD + 0.3V)
PGND to GND ...................................................... -0.3V to +0.3V
LX to BST................................................................. -4V to +0.3V
BST to GND .......................................................... -0.3V to +8.0V
LX Current (Note 1).............................................................±4.7A
REF Short Circuit to GND ...........................................Continuous
REFOUT Short Circuit to GND....................................Continuous
Continuous Power Dissipation (TA = +70°C)
24-Pin Thin QFN (derate 20.8mW/°C above +70°C;
part mounted on 1in2 of 1oz copper)........................1667mW
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
Note 1: LX has clamp diodes to PGND and IN. If continuous current is applied through these diodes, thermal limits must be observed.
Stresses beyond those listed under âAbsolute Maximum Ratingsâ 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
(Circuit of Figure 1, VIN = +3.3V, VCC = VDD = SHDN = MODE = +3.3V, VREFIN = VREF, SKIP = GND, TA = 0°C to +85°C, unless oth-
erwise noted. Typical values are at TA = +25°C.)
PARAMETER
PWM CONTROLLER
Input Voltage Range
Output Adjust Range
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
VIN
VCC, VDD
VOUT ⤠VIN
VFB -
VREFIN
VIN = +3.3V, ILOAD = 0,
MODE = VCC
1.3
3.6
V
3.0
3.6
0.5
2.7
V
TA = +25°C
-3
to +85°C
TA = 0°C to
-4
+85°C
0
+3
mV
0
+4
TA = +25°C
FBSEL0 = VCC, to +85°C
2.463
2.5
2.537
FBSEL1 = VCC,
REFIN = REF
TA = 0°C to
+85°C
2.450
2.5
2.550
Feedback Voltage Accuracy
TA = +25°C
FBSEL0 = VCC, to +85°C
1.782
1.800
1.827
FBSEL1 = GND,
VIN = +3.3V, REFIN = REF
TA = 0°C to
+85°C
1.773
1.800
1.836
VFB
ILOAD = 0,
V
MODE = low FBSEL0=GND
TA = +25°C
to +85°C
1.477
1.500
1.523
FBSEL1=VCC
REFIN=REF
TA = 0°C to 1.470 1.500 1.530
+85°C
FBSEL0=GND
FBSEL1=GND
REFIN=0.5V
TA = +25°C
to +85°C
TA = 0°C to
+85°C
0.492
0.490
0.500
0.500
0.508
0.510
Feedback Load-Regulation Error
VIN = +1.3V to +3.6V, ILOAD = 0 to 3A,
SKIP = VCC
0.1
%
2 _______________________________________________________________________________________
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese