FB

PGOOD

LM21215A-1

AGND

COMP

PVIN

SW

EN

PGND

AVIN

11-16

3

4

17

19

18

20

8,9,10

5,6,7

SS/

TRK

2

optional

TSSOP-20

EN

GND

VIDA

1

10

SON-10

3 mm x 3 mm

VIDB

VIDC

VIDS

9

8

7

4

VDD

IDAC_OUT

3

2

0 - 59.2 µA

LM10011

SYNC

1

CVDD

3V to 5.5V

VCNTL[3]

VCNTL[2]

VCNTL[1]

VCNTL[0]

TMS320C6670/

TMS320C6678

0.7V to 1.1V

DVDD18

MODE

5

SET

6

LM10011

www.ti.com

SNVS822A – DECEMBER 2012 – REVISED NOVEMBER 2014

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

LM10011 is a precision, digitally programmable device used for controlling the dc-dc converter output voltage.

The LM10011 GUI design tool is available at www.ti.com/product/LM10011 and can be used to program any

voltage regulator output to a desired range and resolution. The GUI enables changing the output voltage of the

on-board POL based on direct user input. It is also able to assist the power designer in selecting the correct

external components needed for any given application.

8.2 Typical Application

In this example, an LM21215A-1 is used as the voltage regulator and the desired range of output voltage

operation is 0.7 V to 1.1 V. The LM10011 can provide control of the output voltage within this range with 6 bits or

mV (26.7 mV in 4-bit mode) at the regulator output. In this calculation, 1% resistor values are used. A schematic

for this example is shown in Figure 12.

Figure 12. 6-Bit Mode Design Example

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