Absolute maximum ratings, Electrical characteristics – Rainbow Electronics MAX15034 User Manual
Page 2
MAX15034
Configurable, Single-/Dual-Output, Synchronous
Buck Controller for High-Current Applications
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
IN, LX_ to AGND.....................................................-0.3V to +30V
BST_ to AGND........................................................-0.3V to +35V
DH_ to LX_ ....................................-0.3V to (V
BST_
- V
LX_
) + 0.3V
DL_ to PGND ..............................................-0.3V to (V
DD
+ 0.3V)
BST_ to LX_ ..............................................................-0.3V to +6V
V
DD
to PGND............................................................-0.3V to +6V
AGND to PGND .....................................................-0.3V to +0.3V
AVGLIMIT, REG, RT/CLKIN, CSP_,
CSN_ to AGND ......................................................-0.3V to +6V
All Other Pins to AGND ............................-0.3V to (V
REG
+ 0.3V)
REG Continuous Output Current
(limited by power dissipation, no thermal or short-circuit
protection).........................................................................67mA
Continuous Power Dissipation (T
A
= +70°C) (Note 1)
28-Pin TSSOP (derate 14mW/°C above +70°C) ..........1117mW
28-Pin TSSOP-EP (derate 27mW/°C above +70°C)........2162mW
Package Thermal Resistance (
θ
JA
) (Note 1)
MAX15034A ................................................................71.6°C/W
MAX15034B ...................................................................37°C/W
Package Thermal Resistance (
θ
JC
) (Note 1)
MAX15034A ...................................................................13°C/W
MAX15034B .....................................................................2°C/W
Operating Temperature Range .........................-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(V
IN
= V
REG
= V
DD
= V
EN_
= +5V, T
A
= T
J
= T
MIN
to T
MAX
, unless otherwise noted, circuit of Figure 6. Typical values are at T
A
= +25°C.)
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SYSTEM SPECIFICATIONS
5
28
Input Voltage Range
V
IN
IN and REG shorted together for +5V
operation
4.75
5.50
V
Quiescent Supply Current
I
IN
f
OSC
= 500kHz, DH_ or DL_ = open
7
17
mA
STARTUP/INTERNAL REGULATOR OUTPUT (REG)
REG Undervoltage Lockout
UVLO
V
REG
rising
4.0
4.15
4.5
V
Hysteresis
V
HYST
200
mV
REG Output Accuracy
V
IN
= 5.8V to 28V, I
SOURCE
= 0 to 65mA
4.75
5.10
5.30
V
REG Dropout
V
IN
< 5.8V, I
SOURCE
= 60mA
0.5
V
INTERNAL REFERENCE
Internal Reference Voltage
V
EAN_
EAN_ connected to
EAOUT_
(Note 3)
T
A
= -40°C to +125°C
0.605
0.6125
0.620
V
Digital Ramp Period for Soft-Start
1024
Clock
cycles
Soft-Start Voltage Steps
64
Steps
MOSFET DRIVERS
p-Channel Output Driver
Impedance
R
ON_P
1.35
3
Ω
n-Channel Output Driver
Impedance
R
ON_N
0.45
1.35
Ω
Output Driver Source Current
I
DH_
, I
DL_
2.5
A
Output Driver Sink Current
I
DH_
, I
DL_
5
A
Note 1: 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
.