LM3000_14 datasheet(3/41 Pages) TI1

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DAP (should be tied to SGND on

board)

ILIM2

HG2

VCB2

SGND

CLKOUT

EA2_GND

FB2

COMP2

ILIM1

HG1

VCB1

VDD

EA1_GND

FB1

COMP1

PGOOD1

LM3000

LLP-32

5x5x0.8mm body size

0.5mm pitch

LM3000

www.ti.com

SNVS612A – JULY 2009 – REVISED JULY 2009

Connection Diagram

Figure 1. Top View

32-Lead LLP

Pin Functions

Pin Descriptions

Pin #

Name

Description

VSW2

Switch node sense for channel 2.

PGND2

Power ground for channel 2 low-side drivers.*

LG2

Channel 2 low-side gate drive for external MOSFET.

VIN

Chip supply voltage, input to the VDD and VDR regulators. (3.3V to 18.5V)

VDR

Supply for low-side gate drivers.

LG1

Channel 1 low-side gate drive for external MOSFET.

PGND1

Power ground for channel 1 low-side drivers.*

VSW1

Switch node sense for channel 1.

ILIM1

Current limit setting input for channel 1.

HG1

Channel 1 high-side gate drive for external MOSFET.

VCB1

Boost voltage for channel 1 high-side driver.

VDD

Supply for control circuitry.

EA1_GND

Error amplifier ground sense for channel 1.*

FB1

Error amplifier input for channel 1.

COMP1

Error amplifier output for channel 1.

PGOOD1

Power good signal for channel 1 under-voltage and over-voltage.

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