LM10504_15 Datasheet, PDF (1/38 Pages) Texas Instruments – LM10504 Triple Buck + LDO Power Management Unit

LM10504
www.ti.com
SNVS739E – DECEMBER 2011 – REVISED MARCH 2013
LM10504 Triple Buck + LDO Power Management Unit
Check for Samples: LM10504
FEATURES
1
•2 Three Highly Efficient Programmable Buck
Regulators
– Integrated FETs with Low R_DSON
– Bucks Operate with Their Phases Shifted to
Reduce the Input Current Ripple and
Capacitor Size
– Programmable Output Voltage via the SPI
Interface
– Overvoltage and Undervoltage Lockout
– Automatic Internal Soft Start with Power-On
Reset
– Current Overload and Thermal Shutdown
Protection
– PFM Mode for Low-Load, High-Efficiency
Operation
• Power-Down Data Protection Enhances Data
Integrity
– Bypass Mode Available on Bucks 1 and 2
• Deep Sleep Mode to Save Power During Idle
Times
– DEVSLP Function
• Programmable Low-Dropout LDO 1.2V to 3.1V,
up to 250 mA
• SPI-Programmable Interrupt Comparator (2.0V
to 4.0V)
• Alternate Buck V_OUTS Selectable via V_SELECT
Logic Pins
• Customizable Startup Sequencing for Varied
Controllers
• RESET Pin
DESCRIPTION
The LM10504 is an advanced PMU containing three
configurable, high-efficiency buck regulators for
supplying variable voltages. The device is ideal for
supporting ASIC and SOC designs for Solid-State
and Flash drives.
The LM10504 operates cooperatively with ASIC to
optimize the supply voltage for low-power conditions
and Power Saving modes via the SPI interface. It
also supports a 250 mA LDO and a programmable
Interrupt Comparator.
KEY SPECIFICATIONS
• Programmable Buck Regulators:
– Buck 1: 1.1V to 3.6V; 1.6A
– Buck 2: 1.1V to 3.6V; 1A
– Buck 3: 0.7V to 1.335V; 1A
• ±3% feedback voltage accuracy
• Up to 95% efficient buck regulators
• 2MHz switching frequency for smaller inductor
size
• 2.8 x 2.8 mm, 0.4 mm pitch 34-bump DSBGA
package
APPLICATIONS
• Solid-State Drives
1
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2
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.
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