Electrical characteristics, Absolute maximum ratings – Rainbow Electronics MAX15058 User Manual
Page 2
High-Efficiency, 3A, Current-Mode
Synchronous, Step-Down Switching Regulator
MAX15058
2 ______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(V
IN
= 5V, T
A
= -40NC to +85NC, unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 3)
ABSOLUTE MAXIMUM RATINGS
Note 1: LX has internal clamp diodes to GND and IN. Applications that forward bias these diodes should not exceed the IC’s pack-
age power dissipation limits.
IN, PGOOD to GND ................................................-0.3V to +6V
LX to GND ..................................................-0.3V to (V
IN
+ 0.3V)
LX to GND .......................................-1V to (V
IN
+ 0.3V) for 50ns
EN, COMP, FB, SS/REFIN, SKIP to GND ...-0.3V to (V
IN
+ 0.3V)
LX Current (Note 1) ................................................... -6A to +6A
Output Short-Circuit Duration ....................................Continuous
Continuous Power Dissipation (T
A
= +70NC)
9-Bump WLP Multilayer Board
(derate 14.1mW/NC above T
A
= +70NC) ....................1127mW
Operating Temperature Range .......................... -40NC to +85NC
Storage Temperature Range ............................ -65NC to +150NC
Soldering Temperature (reflow) ......................................+260NC
WLP
Junction-to-Case Thermal Resistance (B
JC
) ...................26NC/W
Junction-to-Ambient Thermal Resistance (B
JA
) ..............71NC/W
Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to
www.maxim-ic.com/thermal-tutorial
.
PACKAGE THERMAL CHARACTERISTICS (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
IN Voltage Range
V
IN
2.7
5.5
V
IN Shutdown Supply Current
V
EN
= 0V
0.2
2
F
A
IN Supply Current
I
IN
V
EN
= 5V, V
FB
= 0.65V, no switching
1.56
2.3
mA
V
IN
Undervoltage Lockout
Threshold
LX starts switching, V
IN
rising
2.6
2.7
V
V
IN
Undervoltage Lockout
Hysteresis
LX stops switching, V
IN
falling
200
mV
ERROR AMPLIFIER
Transconductance
g
MV
1.5
mS
Voltage Gain
A
VEA
90
dB
FB Set-Point Accuracy
V
FB
Over line, load, and temperature
594
600
606
mV
FB Input Bias Current
I
FB
V
FB
= 0.6V
-500
+500
nA
COMP to Current-Sense
Transconductance
g
MC
18
A/V
COMP Clamp Low
V
FB
= 0.65V, V
SS
= 0.6V
0.94
V
POWER SWITCHES
LX On-Resistance, High-Side
pMOS
30
mI
LX On-Resistance, Low-Side
nMOS
18
mI
High-Side Switch Current-Limit
Threshold
I
HSCL
5
A
Low-Side Switch Sink Current-
Limit Threshold
4
A
Low-Side Switch Source Current-
Limit Threshold
5
A