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LM10506 Datasheet, PDF (1/35 Pages) Texas Instruments – Triple Buck + LDO Power Management Unit | |||
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LM10506
June 5, 2012
Triple Buck + LDO Power Management Unit
1.0 General Description
The LM10506 is an advanced PMU containing three config-
urable, 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 LM10506 operates cooperatively with ASIC to optimize
the supply voltage for low-power conditions and Power Sav-
ing modes via the SPI interface. It also supports a 100 mA
LDO and a programmable Interrupt Comparator.
2.0 Key Specifications
â Programmable Buck Regulators:
â Buck 1: 1.1V to 3.6V; 1.3A
â Buck 2: 1.1V to 3.6V; 400 mA
â Buck 3: 0.7V to 1.335V; 600 mA
â ±3% feedback voltage accuracy
â Up to 95% efficient buck regulators
â 2MHz switching frequency for smaller inductor size
â 2.8 x 2.8 mm, 0.4 mm pitch, 34-bump micro SMD package
3.0 Features
â Three highly efficient programmable buck regulators
â Integrated FETs with low RDSON
â Bucks operate with their phases shifted to reduce the
input current ripple and capacitor size
â Programmable Output Voltage via the SPI interface
â Overvoltage and Undervoltage Lockout
â Automatic internal soft start with Power-on reset
â Current overload and thermal shutdown protection
â Bypass mode available on Bucks 1 and 2
â PFM mode for low-load, high-efficiency operation
â Low-dropout LDO 3.2V, 100 mA
â SPI-programmable interrupt comparator (2.0V to 4.0V)
â Alternate Buck VOUTS selectable via H/L logic pins
â RESET, STANDBY pins
4.0 Applications
â Solid-State Drives
5.0 Typical Application Diagram
© 2012 Texas Instruments Incorporated 301662 SNVS729B
30166201
www.ti.com
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