DALLAS, Dec. 13, 2011 /PRNewswire/ -- Texas Instruments
Incorporated (TI) (NYSE: TXN) today introduced a family of tiny,
single-chip, power management integrated circuits (PMICs) for
powering all the supply rails in solid state drives (SSDs), hybrid
drives and other Flash memory management applications. The new
LM10504, LM10503 and LM10506 PMICs improve reliability and reduce
system cost and development time. Additional features include a
power-saving deep sleep mode, built-in current limit and thermal
protection, and power-down data protection. Watch a lab
demonstration at www.ti.com/lm10504-v.
TI's new PMICs integrate three programmable 2.25-MHz DC/DC
step-down converters with 95-percent peak efficiency that support
core processor, memory and I/O voltages, along with a
general-purpose, 3-V, 250-mA low-dropout (LDO) regulator for host
controller reference. Each PMIC functions cooperatively with a
controller IC to optimize the supply voltage for low power
conditions and features a deep sleep mode option that lowers the
core ASIC voltage and turns off the Flash and input/output rails to
obtain maximum system efficiency. The LM10504 and LM10506 also
include power-down data protection that ensures that the SSD
controller completes the writing operation during unexpected power
failure.
Designed alongside a temperature sensor, such as the TMP121 and
TMP122, or the industry smallest low-power LM74, each PMIC provides
a complete power management solution for SSDs. View the block
diagram at
http://www.ti.com/solution/solid_state_drive_internal_external.
The LM10504 is a flexible PMIC for use in a variety of large and
small, client and consumer SSD form factors including 3.5-inch,
2.5-inch, 1.8-inch, mSATA, Micro SATA, Half-Slim SATA, mini PCIe
and integrated SSD.
The LM10503 is a higher current, 2-A PMIC designed for
power-hungry controllers used in enterprise SSDs. The LM10503
features the National PowerWise® adaptive voltage scaling
technology from TI for reducing the power consumption of SSD
controllers and increasing system power efficiency.
The LM10506 is the smallest PMIC designed for ultra-portable
applications in space-constrained, client and consumer SSDs
including mSATA, Half-Slim SATA, mini PCIe and integrated SSD.
Key features and benefits of the PMICs
- Each PMIC integrates three buck regulators with internal FETs
and an LDO for digital reference.
- The buck regulators are SPI-programmable to supply variable
voltages at up to 95-percent peak efficiency.
- Each PMIC features low-dropout at 3-V, 250 mA for host
controller reference.
- Power-down data protection enhances data integrity to ensure a
highly reliable SSD.
- Deep sleep mode saves power during idle times.
- Customizable start-up sequencing supports various controller IC
requirements.
- Automatic internal soft-start on each supply limits in-rush
current during start-up.
- 2-MHz switching frequency supports a smaller inductor
size.
- High integration and small 2.8-mm2-micro SMD package simplifies
layout and conserves board space.
The new PMICs, together with TI's wide portfolio of discrete
temperature sensing ICs and power management regulators that
include the National SIMPLE SWITCHER® nano modules from TI, now
represent the industry's most comprehensive offering for SSDs.
Availability, packaging and pricing
All three PMICs are available in volume now from TI and its
authorized distributors. The LM10504 and LM10506 PMICs are offered
in a 34-pin micro SMD package measuring 2.8-mm by 2.8-mm with
0.4-mm pitch. The suggested retail price is $1.90 and $1.60
respectively in 1,000-unit quantities. The LM10503 is offered in a
36-pin LLP package measuring 6-mm by 6-mm and is priced at
$3.90.
Find out more about TI's power portfolio:
- Order samples and evaluation modules of the new PMICs:
- www.ti.com/lm10504-pr
- www.ti.com/lm10503-pr
- www.ti.com/lm10506-pr
- Ask questions and share knowledge in the Power forum in the TI
E2E™ Community:
About Texas Instruments
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SOURCE Texas Instruments Incorporated