STW4510 datasheet(1/57 Pages) STMICROELECTRONICS

部品番号	STW4510

部品情報	2 step-down DC/DC converters / 5 LDO power management

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メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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Preliminary Data

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to

change without notice.

March 2008

Rev 1

1/57

1

STw4510

2 step-down DC/DC converters / 5 LDO power management

Features

■ 2 Step-down converters

– Vsdc1: 1 to 1.5 V with

. 15 steps at 600 mA (I2C control available)

. Programmable start-up value

(1.2V by default)

– Vsdc2: 1.8 V at 600 mA for general

purpose usage

■ 5 Low-drop output regulators for different uses

– Vdig: 1.0V (100mA), 1.2V, 1.5V (250 mA)

. Can be supplied by Vsdc2 to minimize the

voltage drop

. Programmable start-up value

(1.2V by default)

– Vana1: 1.5, 1.8, 2.5, 2.8 V - 150 mA

– Vana2: 1.8, 2.8, 3.0, 3.3 V - 150 mA

– Vana3: 1.8, 2.8, 3.0, 3.3 V - 150 mA

– Vmmc: 1.8, 2.5, 2.85, 3.0 V - 150mA

■ Miscellaneous

– Vana(i) have programmable start-up output

voltage and ON or OFF (default) status

– 32 kHz input used for state machine

– Processor supply monitoring

– Processor reset control

– Control by serial I2C interface

– Thermal shutdown

Applications

■ Any portable application

– Mobile phones

– Personal digital assistants (PDA)

– Portable media players

Description

STw4510 is a 7-channel integrated power

management device for application powered by

one Li-Ion or Li-Polymer cell. STw4510 embeds 2

highly efficient step-down DC/DC converters and

5 LDO regulators.

It has been designed to typically supply portable

processor and its peripherals. Thanks to the

multiple output voltages, high current capability

and programmable start-up value, it can easily

adapt to various applications.

TFBGA84 6 mm x 6 mm x 1.2 mm 0.5 mm pitch

TFBGA49 4 mm x 4 mm x 1.2 mm 0.5 mm pitch

www.st.com

Obsolete

Product(s)

- Obsolete

Product(s)

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