LM10011 Datasheet, PDF (1/21 Pages) Texas Instruments – 6/4-Bit VID Programmable Current DAC for Point of Load Regulators with Adjustable Start-Up Current

LM10011
www.ti.com
SNVS822 – DECEMBER 2012
6/4-Bit VID Programmable Current DAC for Point of Load Regulators with
Adjustable Start-Up Current
Check for Samples: LM10011
FEATURES
1
• 1.0% Output Current Accuracy (0°C to +100°C)
• 1.25% Output Current Accuracy (–40°C to
+125°C)
• Input Voltage Range: +2.97V to +5.5V
• Pin Selectable VID Format (6/4 bit)
• 16 Selectable Start-Up Currents
• Precision Enable to Support Custom UVLO
• SON-10 3mm x 3mm Footprint, 0.5mm Pitch
• Footprint Compatible with the LM10010
APPLICATIONS
• Broadband, Networking, and Wireless
Communications
• Notebook Power Solutions
• Portable Instruments
• Battery-Powered Equipment
• Powering Digital Loads with a 6-bit or 4-bit, 4
Pin VID Interface
DESCRIPTION
The LM10011 is a precision, digitally programmable
device used to control the output voltage of a DC/DC
converter. The LM10011 outputs a DC current
proportional to a 6-bit or 4-bit input word. By
connecting the IDAC_OUT pin to the feedback node
of a regulator, the regulator output voltage can be
adjusted to a desired range and resolution set by the
user. As the input word counts up, the output voltage
is adjusted higher based on the values of the
feedback resistors in the converter.
The current from the IDAC_OUT pin on start-up is
programmable by an external resistor to cover the
range of 0 to 56.4µA with 4 bits of resolution. The
MODE pin allows programming of the device through
a 4-bit parallel VID interface or through a 6-bit
interface consisting of upper and lower 3-bit VID
codes. The LM10011 is specifically designed to
program a wide variety of Texas Instruments DC/DC
converters for VID (Voltage Identification)
applications.
TYPICAL APPLICATION CIRCUIT
V_IN
2.97V to 5.5V
VIN
SW
DC/DC
FB
GND
V_OUT
R_FB1
R_FB2
R_SET
3
5
MODE
VDD
2
IDAC_OUT
4
LM10011
EN
VIDS
10
9
6
SET
VIDC
8
VIDB
7
VIDA
GND
1
SON-10
3 mm x 3 mm
0 - 59.2 µA
V_CORE
VID
Interface
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated