LM10502

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SNVS884B – AUGUST 2012 – REVISED MAY 2013

LM10502 Dual Buck + LDO Power Management Unit

Check for Samples: LM10502

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FEATURES

DESCRIPTION

The LM10502 are advanced PMUs each containing

2

•

Two Highly Efficient Programmable Buck

two configurable, high-efficiency buck regulators for

Regulators

supplying variable voltages. The device is ideal for

–

Integrated FETs with Low RDSON

supporting ASIC and SOC designs for Solid-State

–

Bucks Operate with Their Phases Shifted to

and Flash drives.

Reduce the Input Current Ripple and

The

LM10502

operate

cooperatively

with

the

Capacitor Size

application ASIC to optimize the supply voltage for

–

Programmable Output Voltage via the SPI

low-power conditions and Power Saving modes via

interface

the SPI interface. It also supports a 250 mA LDO and

a programmable Interrupt Comparator to monitor VIN.

–

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

•

Low-Dropout LDO 3.0V, 250 mA

•

SPI-Programmable Interrupt Comparator (2.0V

to 4.0V) to Monitor VIN

APPLICATIONS

•

Solid-State Drives

KEY SPECIFICATIONS

•

LM10502 - Programmable Buck Regulators:

–

Buck 1: 1.1V to 3.6V; 1A

–

Buck 2: 0.7V to 1.335V; 1A

•

±3% Feedback Voltage Accuracy

•

Up to 95% Efficient Buck Regulators

•

2MHz Switching Frequency for Smaller

Inductor Size

•

2.5 x 2.5 mm, 0.5 mm Pitch DSBGA Package

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2

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PRODUCTION DATA information is current as of publication date.

Copyright © 2012–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.