MAX15041 Maxim Integrated Products, MAX15041 Datasheet - Page 2

• Manufacturer Part Number: MAX15041
• Description: Step-Down DC-DC Regulator
• Manufacturer: Maxim Integrated Products

Low-Cost, 3A, 4.5V to 28V Input, 350kHz, PWM
Step-Down DC-DC Regulator with Internal Switches
ABSOLUTE MAXIMUM RATINGS
IN to SGND.............................................................-0.3V to +30V
EN to SGND .................................................-0.3V to (V
LX to PGND ................................-0.3V to min (+30V, V
LX to PGND .....................-1V to min (+30V, V
PGOOD to SGND .....................................................-0.3V to +6V
V
COMP, FB, SS to SGND..............-0.3V to min (+6V, V
BST to LX .................................................................-0.3V to +6V
BST to SGND .........................................................-0.3V to +36V
SGND to PGND ....................................................-0.3V to +0.3V
LX Current (Note 1) ....................................................-5A to +8A
ELECTRICAL CHARACTERISTICS
(V
Note 1: LX has internal clamp diodes to PGND and IN. Applications that forward bias these diodes should take care not to exceed
Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
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
STEP-DOWN CONVERTER
Input-Voltage Range
Input Supply Current
Shutdown Input Supply Current
ENABLE INPUT
EN Shutdown Threshold Voltage
EN Shutdown Voltage Hysteresis
EN Lockout Threshold Voltage
EN Input Current
POWER-GOOD OUTPUT
PGOOD Threshold
PGOOD Threshold Hysteresis
PGOOD Output Low Voltage
PGOOD Leakage Current
ERROR AMPLIFIER
Error Amplifier
Transconductance
Error Amplifier Voltage Gain
FB Set-Point Accuracy
FB Input Bias Current
DD
IN
_______________________________________________________________________________________
= 12V, C
to SGND............................................................-0.3V to +6V
the IC’s package power dissipation.
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
PARAMETER
VDD
= 1µF, C
IN
= 22µF, T
V
V
EN_LOCK_HYST
V
V
PGOOD_HYST
A
V
V
SYMBOL
V
PGOOD_OL
PGOOD_TH
I
EN_SHDN
EN_LOCK
= T
EN_HYST
PGOOD
A
g
V
V
I
I
I
VEA
EN
FB
IN
MV
FB
J
IN
IN
= -40°C to +85°C, typical values are at T
+ 0.3V) for 50ns
DD
IN
IN
Switching
V
V
V
V
V
V
V
I
V
V
V
PGOOD
EN
EN
EN
EN
EN
EN
FB
PGOOD
FB
FB
+ 0.3V)
+ 0.3V)
+ 0.3V)
rising
= 0.5V
= 0.7V
= 0V, V
= 0V, V
rising
rising
falling
= 2.9V
= 5mA, V
= 5V, V
DD
IN
CONDITIONS
= V
regulated by internal
Converter Output Short-Circuit Duration ...................Continuous
Continuous Power Dissipation (T
Package Thermal Resistance (Note 2)
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
FB
16-Pin TQFN-EP (derate 14.7mW/°C above +70°C)
Multilayer Board .........................................................1666mW
θ
θ
FB
DD
JA
JC
= 0.7V
= 0.5V
= 5V
................................................................................48°C/W
..................................................................................7°C/W
A
= +25°C, unless otherwise noted.) (Note 3)
-100
-100
MIN
540
600
4.5
1.7
2
A
= +70°C)
TYP
1.95
100
100
560
606
2.1
1.4
5.3
1.6
18
15
35
10
90
2
www.DataSheet4U.com
+100
+100
MAX
2.15
584
100
612
28
12
28
4
9
UNITS
mA
mV
mV
mV
mV
mV
mS
mV
µA
µA
nA
dB
nA
V
V
V