IC PWR SUPPLY DDR 28-TQFN

MAX8632ETI+T

Manufacturer Part NumberMAX8632ETI+T
DescriptionIC PWR SUPPLY DDR 28-TQFN
ManufacturerMaxim Integrated Products
MAX8632ETI+T datasheet
 


Specifications of MAX8632ETI+T

ApplicationsController, DDRVoltage - Input2 ~ 28 V
Number Of Outputs1Voltage - Output1.8V, 2.5V, 0.7 ~ 5.5 V
Operating Temperature-40°C ~ 85°CMounting TypeSurface Mount
Package / Case28-TQFN Exposed PadOutput Voltage1.8 V, 2.5 V, 0.7 V to 5.5 V
Output Current15 AInput Voltage2 V to 28 V
Mounting StyleSMD/SMTMaximum Operating Temperature+ 85 C
Minimum Operating Temperature- 40 CLead Free Status / RoHS StatusLead free / RoHS Compliant
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Integrated DDR Power-Supply Solution for
Desktops, Notebooks, and Graphic Cards
ELECTRICAL CHARACTERISTICS (continued)
= STBY = V
(V
= +15V, V
= AV
= V
SHDN
IN
DD
DD
= GND, PGND1 = PGND2 = LX = GND, TON = OPEN, V
are at T
= +25°C.) (Note 1)
A
PARAMETER
SYMBOL
LINEAR REGULATORS (VTTR AND VTT)
VTTI Input Voltage Range
VTTI Supply Current
VTTI Shutdown Current
REFIN Input Impedance
REFIN Range
VTT, VTTR UVLO Threshold
(Measured at OUT)
Soft-Start Charge Current
VTT Internal MOSFET High-Side
On-Resistance
VTT Internal MOSFET Low-Side
On-Resistance
VTT Output Accuracy
(Referred to V
/ 2)
REFIN
VTT Load Regulation
VTT Current Limit
VTTS Input Current
VTTR Output Error
(Referred to V
/ 2)
REFIN
VTTR Current Limit
VTTR Bias Current
Note 1: Specifications to -40°C are guaranteed by design, not production tested.
Note 2: When the inductor is in continuous conduction, the output voltage has a DC regulation level higher than the error-compara-
tor threshold by 50% of the ripple. In discontinuous conduction, the output voltage has a DC regulation level higher than the
trip level by approximately 1.5% due to slope compensation.
Note 3: On-time and off-time specifications are measured from 50% point to 50% point at the DH pin with LX = GND, V
and a 250pF capacitor connected from DH to LX. Actual in-circuit times may differ due to MOSFET switching speeds.
_______________________________________________________________________________________
= V
= 5V, V
= V
BST
ILIM
OUT
= V
, T
= -40°C to +85°C, unless otherwise noted. Typical values
VTTS
VTT
A
CONDITIONS
V
VTTI
I
I
= I
= 0
VTTI
VTT
VTTR
SHDN = GND
V
= 2.5V
REFIN
V
REFIN
I
V
= 0
SS
SS
I
= -100mA, V
= 1.5V,
VTT
VTTI
AV
= 4.5V
DD
I
= 100mA, AV
= 4.5V
VTT
DD
V
= 1.5V or 2.5V, I
= 1mA
REFIN
VTT
= 0 to ±1.5A
V
= 2.5V, I
REFIN
VTT
= 0 to ±1A
V
= 1.5V, I
REFIN
VTT
VTT = 0 or VTTI
I
V
= 1.5V, VTT open
VTTS
VTTS
V
= 1.5V or 2.5V, I
REFIN
VTTR
V
= 0 or V
VTTR
VTTI
V
= V
= 0
REFIN
VTTI
= 2.5V, UVP/OVP = TP0 = FB = SKIP
= V
REFIN
VTTI
MIN
TYP
MAX
1
<0.1
12
20
1
0.01
0.1
0.20
4
-1
1.3
1.3
±3
±5
±6.5
0.1
= 0
-1
±18
±32
±50
0.6
UNITS
2.8
V
1
mA
10
µA
30
kΩ
2.8
V
V
µA
0.3
0.3
+1
%
%
A
1
µA
+1
%
mA
4
µA
= 5V,
BST
5