MAX16928(2011) Ver la hoja de datos (PDF) - Maxim Integrated

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MAX16928
(Rev.:2011)

Automotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators

Maxim Integrated 

MAX16928

Automotive TFT-LCD Power Supply with Boost

Converter and Gate Voltage Regulators

Layout Considerations

Careful PCB layout is critical in achieving stable and

optimized performance. Follow these guidelines for good

PCB layout:

1) Place decoupling capacitors as close as possible to

the device. Connect the power ground planes and the

analog ground plane together at one point close to the

device.

2) Connect input and output capacitors to the power

ground planes; connect all other capacitors to the

analog ground plane.

3) Keep the high-current paths as short and wide as

possible. Keep the path of switching currents short.

4) Place the feedback resistors as close as possible to

the device. Connect the negative end of the resistive

divider and the compensation network to the analog

ground plane.

5) Route the high-speed switching node LXB and LXP

away from sensitive analog nodes (FB, FBP, FBGH,

FBGL, and REF).

Refer to the MAX16928 Evaluation Kit data sheet for a

recommended PCB layout.

PART

TEMP RANGE

MAX16928AGUP/V+

-40°C to +105°C

MAX16928BGUP/V+

-40°C to +105°C

MAX16928CGUP/V+

-40°C to +105°C

MAX16928DGUP/V+

-40°C to +105°C

/V denotes an automotive qualified part.

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

REGULATOR VREG

(V)

3.3

1.8

3.3

1.8

Ordering Information

BOOST ILIM

(A)

1.5

1.5

0.75

0.75

PIN-PACKAGE

20 TSSOP-EP*

20 TSSOP-EP*

20 TSSOP-EP*

20 TSSOP-EP*

PROCESS: BiCMOS

Chip Information

Package Information

For the latest package outline information and land patterns

(footprints), go to www.maxim-ic.com/packages. Note that a

“+”, “#”, or “-” in the package code indicates RoHS status only.

Package drawings may show a different suffix character, but

the drawing pertains to the package regardless of RoHS status.

PACKAGE

TYPE

20 TSSOP-EP

PACKAGE

CODE

U20ME+1

OUTLINE

NO.

21-0108

LAND

PATTERN NO.

90-0114

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