MAX17003ETJ+ Maxim Integrated Products, MAX17003ETJ+ Datasheet - Page 35

• Manufacturer Part Number: MAX17003ETJ+
• Description: IC PS CTRLR FOR NOTEBOOKS 32TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX17003ETJ+

• Applications: Controller, Notebook Computers
• Voltage - Input: 6 ~ 26 V
• Number Of Outputs: 4
• Voltage - Output: 3.3V, 5V, 2 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TRANSISTOR COUNT: 6897
PROCESS: BiCMOS
T T a a b b l l e e 6 6 . . F F u u n n c c t t i i o o n n a a l l D D i i f f f f e e r r e e n n c c e e s s B B e e t t w w e e e e n n M M A A X X 8 8 7 7 4 4 4 4 / / M M A A X X 8 8 7 7 4 4 5 5 a a n n d d M M A A X X 1 1 7 7 0 0 0 0 3 3 / / M M A A X X 1 1 7 7 0 0 0 0 4 4
Figure 9. PCB Layout
DL3 and DL5
Power-Good
FEATURE
Shutdown
Startup
States
n-CHANNEL
MOSFETS
SINGLE
Supply Controllers for Notebook Computers
High-Efficiency, Quad-Output, Main Power-
S tar tup op er ati ng m od e d ep end s on the SKIP setti ng .
( e.g ., SKIP i s l ow , then star tup occur s i n ski p m od e) .
Actively discharges the output down to zero.
DL3 and DL5 are high in shutdown.
DL3 and DL5 are latched high during an OV fault of
the respective output (MAX8744 only).
PGOOD3: Power-good indicator for SMPS3.
PGOOD5: Power-good indicator for SMPS5.
P GO OD A: P ow er - g ood i nd i cator for the auxi l i ar y LD O.
INPUT
______________________________________________________________________________________
C
HIGH-POWER LAYOUT
IN
GROUND
Chip Information
MAX8744/MAX8745
INDUCTOR
C
C
EXPOSED PAD TO
OUT
OUT
CONNECT THE
ANALOG GND
OUTPUT
REF BYPASS
CAPACITOR
(REFER TO THE EVALUATION KIT)
MAX17003/MAX17004
KELVIN SENSE VIAS
UNDER THE SENSE
RESISTOR
Startup is always in low-noise pulse-skipping mode (i.e.,
same as SKIP = REF setting). This allows for startup into
prebiased outputs.
The SKIP setting takes effect once the SMPS is in regulation.
Soft discharge of the output using the DSCHG3 and
DSCHG5 pins.
DL3 and DL5 are low in shutdown.
DL3 and DL5 are latched high during an OV fault of the
respective output (MAX17003 only).
PGDALL: Power-good indicator for SMPS3 and SMPS5.
Auxiliary LDO does not have power-good indicator.
INPUT
CONNECT GND AND PGND TO THE
CONTROLLER AT ONE POINT
ONLY AS SHOWN
OUTPUT
VIA TO POWER
GROUND
LOW-POWER LAYOUT
MAX17003/MAX17004
C
OUT
INDUCTOR
C
IN
GROUND
n-CHANNEL
MOSFET
DUAL
DH
LX
DL
35