max5090aatet Maxim Integrated Products, Inc., max5090aatet Datasheet - Page 2

• Manufacturer Part Number: max5090aatet
• Description: Max5090, Max5090a, Max5090b, Max5090c 2a, 76v, High-efficiency Maxpower Step-down Dc-dc Converters
• Manufacturer: Maxim Integrated Products, Inc.

ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to PGND, unless otherwise specified.)
V
SGND, PGND.………………………………………-0.3V to +0.3V
LX.................................................................-0.8V to (V
BST ...............................................................-0.3V to (V
BST to LX................................................................-0.3V to +10V
ON/OFF........................................................-0.3V to (V
VD, SYNC ...............................................................-0.3V to +12V
SS…………………………………………………………-0.3 to +4V
FB
2A, 76V, High-Efficiency MAXPower Step-Down
DC-DC Converters
ELECTRICAL CHARACTERISTICS
(V
T
*As per JEDEC 51 Standard Multilayer Board.
Stresses beyond those listed under "Absolute Maximum Ratings" may cause 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 maxi-
mum rating conditions for extended periods may affect device reliability.
2
Input Voltage Range
Undervoltage Lockout
UVLO Hysteresis
Output Voltage
Output Voltage Range
Feedback Voltage
Efficiency
Quiescent Supply Current
(Note 2)
Quiescent Supply Current
(Note 2)
Quiescent Supply Current
(Note 2)
Shutdown Current
SOFT-START
Default Internal Soft-Start
Period
Soft-Start Charge Current
IN
A
IN
MAX5090A/MAX5090B…………….……… ...….-0.3V to +15V
MAX5090C ................1mA (internally clamped to +2V, -0.3V)
, DRAIN .............................................................-0.3V to +80V
= +25°C. See the Typical Operating Circuit.) (Note 1)
_______________________________________________________________________________________
= +12V, V
PARAMETER
ON/OFF
= +12V, V
UVLO
SYMBOL
UVLO
I
V
V
SHDN
V
V
I
OUT
OUT
I
I
I
SS
η
FB
Q
Q
Q
SYNC
IN
HYS
= 0V, I
V
MAX5090A
MAX5090B
MAX5090B
MAX5090C only
MAX5090C, V
MAX5090A
MAX5090B
MAX5090C
MAX5090A
MAX5090B
MAX5090C
MAX5090A
MAX5090B
MAX5090C
MAX5090A
MAX5090B
MAX5090C
V
C
IN
ON/OFF
SS
rising
= 0
OUT
= 0V, V
= 0, T
IN
IN
IN
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
IN
+ 0.3V)
+ 0.3V)
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
+ 10V)
IN
= 6.5V to 76V
A
= 6.5V to 76V, I
= 7.5V to 76V, I
= 7V to 76V, I
= 12V, I
= 12V, I
= 12V, V
= 6.5V to 28V
= 7V to 28V
= 6.5V to 28V
= 6.5V to 40V
= 7V to 40V
= 6.5V to 40V
= 6.5V to 76V
= 7V to 76V
= 6.5V to 76V
= 14V
= T
CONDITIONS
J
= -40°C to +125°C, unless otherwise noted. Typical values are at
OUT
OUT
OUT
V
VD Short-Circuit Duration………….............................Continuous
Continuous Power Dissipation (T
Operating Junction Temperature Range ...........-40°C to +125°C
Storage Temperature Range .........................…-65°C to +150°C
Junction Temperature……...……………………………….+150°C
Lead Temperature (soldering, 10s) .................................+300°C
OUT
= 1A
= 1A
= 5V, I
16-Pin TQFN (derate 33.3mW/°C above +70°C) ........2.667W
OUT
OUT
OUT
Short-Circuit Duration………………………… ...Continuous
= 0 to 1A
OUT
= 0 to 2A
= 0 to 2A
= 1A
1.265
1.191
5.70
3.20
4.85
4.85
MIN
6.5
4.5
A
= +70°C)*
1.228
TYP
6.17
310
310
310
310
310
310
310
310
310
700
0.5
3.3
5.0
5.0
80
88
88
19
10
11.000
1.265
MAX
76.0
6.45
3.39
5.15
5.15
16.0
550
550
550
570
570
570
650
650
650
45
UNITS
µA
µA
µA
µA
µA
µs
%
V
V
V
V
V
V