MAX8632ETI+ Maxim Integrated Products, MAX8632ETI+ Datasheet - Page 11
![IC PWR SUPPLY DDR 28-TQFN](/photos/6/61/66150/28-tqfn_21-0139h_sml.jpg)
MAX8632ETI+
Manufacturer Part Number
MAX8632ETI+
Description
IC PWR SUPPLY DDR 28-TQFN
Manufacturer
Maxim Integrated Products
Specifications of MAX8632ETI+
Applications
Controller, DDR
Voltage - Input
2 ~ 28 V
Number Of Outputs
1
Voltage - Output
1.8V, 2.5V, 0.7 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-TQFN Exposed Pad
Output Voltage
1.8 V or 2.5 V or 0.7 V to 5.5 V
Output Current
15 A
Input Voltage
2 V to 28 V
Supply Current
25 uA
Switching Frequency
600 KHz
Mounting Style
SMD/SMT
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Figure 1. Functional Diagram
Integrated DDR Power-Supply Solution for
OVP/UVP
SHDN
STBY
POK1
POK2
Desktops, Notebooks, and Graphic Cards
TON
TP0
FB
______________________________________________________________________________________
VTT ON/OFF
BUCK ON/OFF
SHUTDOWN
N
DECODER
N
VTTR ON/OFF
REFIN / 2 - 10%
REFIN / 2 - 10%
BIAS ON/OFF
INTREF + 10%
QUAD LEVEL
DECODE
0.7 x INTREF
TRIG
ONE-SHOT
COMPUTE
ON-TIME
REFIN / 2 + 10%
REFIN / 2 + 10%
IN
1.16 x INTREF
t
ON
INTREF - 10%
OVP/UVP
LATCH
Q
TIMER
20ms
OUT
INTREF
POWER-DOWN
CURRENT
LIMITS
SS
0.1V
V
VTT ILIM
OUT
OUT
= 2.5V
S
R
V
OUT
DECODE
Q
FB
= 1.8V
LX
S
R
ONE-SHOT
Q
t
1.0V
OFF
Q
ZERO CROSSING
INTREF
TRIG
PGND2
VTTI
DISCHARGE
LOGIC
10kΩ
V
V
DD
REFERENCE
DD
REFIN / 2
MAX8632
2V
10kΩ
N
N
LX
V
DD
N
- 1V
BST
DH
LX
V
DL
PGND
ILIM
SKIP
OUT
AV
GND
REF
VTTS
REFIN
VTTI
VTT
PGND2
VTTR
DD
DD
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