MAX17528GTJ+ Maxim Integrated Products, MAX17528GTJ+ Datasheet - Page 20

• Manufacturer Part Number: MAX17528GTJ+
• Description: IC PWM CTRLR STP-DWN 32TQFN-EP
• Manufacturer: Maxim Integrated Products
• Series: Quick-PWM™r

Specifications of MAX17528GTJ+

• Applications: Controller, Intel IMVP-6.5™ GMCH
• Voltage - Input: 4.5 ~ 5.5 V
• Number Of Outputs: 1
• Voltage - Output: 0.01 ~ 1.5 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 2. GMCH (Render Core) Application Circuit
1-Phase Quick-PWM
Intel IMVP-6.5/GMCH Controllers
20
VSSGFX_SENSE
______________________________________________________________________________________
VALLEY CURRENT LIMIT SET BY TIME TO ILIM
SLEW RATE SET BY TIME BIAS CURRENT
dV/dt = 12.5mV/µs x 71.5kΩ/(R2 + R3)
IMON
ON OFF
3.3V
GFX
V
CC
V
LIMIT
0.022µF
AGND
= 0.2V x R2/(R2 + R3)
(VRON)
C8
R
VRHOT
10kΩ
64.9kΩ
VID INPUTS
R3
7.87kΩ
R
THRM
6.2kΩ
B = 4700
R3
R
7.68kΩ
100kΩ
PWRGD
NTC2
10kΩ
6.65kΩ
R4
AGND
R2
27
14
15
16
17
18
19
20
30
29
10
12
28
11
8
1
6
7
SHDN
SLOW
SKIP
PGDIN
D0
D1
D2
D3
D4
D5
D6
ILIM
TIME
PWRGD
CLKEN
THRM
IMON
VRHOT
MAX17528
EP
AGND
GND
GNDS
PGND
CSN
GND
TON
CSP
CCV
V
V
BST
R
DH
DL
LX
FB
CC
DD
0Ω
GND
31
23
24
26
25
22
21
32
13
5
4
3
2
9
R
AGND
FB
AGND
PWR
LOAD-LINE ADJUSTMENT:
0.1µF
= R
R
AGND
C
100pF
0Ω
C
BST
BST
CCV
C1
1.0µF
DROOP
C
OPEN
10.0kΩ
200kΩ
CSP
R
N
10Ω
R
1%
TON
/(R
AGND
R1
LO
AGND
FB
PWR
SENSE
C
OPEN
CSN
x 600µs)
N
HI
SWITCHING FREQUENCY (f
t
1.0µF
SW
D1
C2
1000pF
1000pF
= 16.3pF x (R
REMOTE-SENSE FILTERS
C10
DCR THERMAL COMPENSATION
PWR
C9
PWR
AGND
AGND
R10
1.50kΩ
1.50kΩ
C
0.22µF
C
R11
SENSE
5V BIAS
IN
INPUT
1.55mΩ
0.42µH
TON
L1
+ 6.5kΩ)
10Ω
10Ω
R13
R14
B = 4500
4.02kΩ
NTC1
10kΩ
R12
SW
= 1/t
REQUIRED WHEN CPU
CATCH RESISTORS
SW
NOT POPULATED
):
PWR
R15
10Ω
R16
10Ω
PWR
C
OUT
REMOTE-SENSE
INPUTS
VSSGFX_SENSE
VCCGFX_SENSE
7V TO 24V
OUTPUT
INPUT
GFX