STOD1412 datasheet(1/21 Pages) STMICROELECTRONICS

부품명	STOD1412

상세설명	Step-up and inverting DC-DC converter

PDF	21 Pages

Scroll/Zoom	100%

제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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1 / 21 page

August 2007

Rev. 1

1/21

21

STOD1412

Step-up and inverting DC-DC converter

Features

■ 2.7 V to 5.5 V input voltage range

■ 120 mA max output current for each converter

■ Output voltages:

– Step-up from 4.3 V to 6.0 V

– Inverting from -8.0 V to -2.0 V

■ Synchronous rectification for both DC-DC

converters

■ Efficiency:

– 80% IO = 10 mA - 30 mA

– 85% IO = 30 mA - 120 mA

■ 1.3 MHz PWM mode control

■ Shutdown mode with Enable pin

■ Inrush current protection

■ Adjustable output voltages

■ True shutdown mode

■ Less than 1 µA current consumption in

shutdown mode

■ Over-temperature protection

■ Package: 16 pin - QFN 3X3

■ Temperature range: -40°C to 85°C

Applications

■ Active matrix organic LED power supplies

■ Mobile phones

■ PDAs

■ Camcorders

■ Digital still cameras

Description

The STOD1412 is a dual DC-DC converter

capable of providing a positive and negative

voltage from a positive input voltage ranging from

2.7 V to 5.5 V. It integrates two complete power

stages, one step-up and one inverting, each of

which need just one inductor, and input and

output capacitor.

The STOD1412 works in PWM mode, switching at

a 1.3 MHz frequency, thus reducing the size and

values of external components. An Enable pin

makes it possible to turn off the device to reduce

the quiescent current to less than 1 µA. The

output voltages can be set easily by using two

external resistors for each converter.

The device integrates a “soft start” with controlled

inrush current limit, thermal shutdown and short

circuit protection.

High efficiency and low quiescent current,

combined with the small number and tiny size of

external components, make the STOD1412

suitable for battery-operated systems, particularly

for powering Active Matrix OLED display panels.

QFN16L (3mm x 3mm)

Table 1.

Device summary

Order code

Package

Packaging

STOD1412PUR

QFN16L (3x3 mm)

4500 parts per reel

www.st.com

유사한 부품 번호 - STOD1412

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STMicroelectronics	STOD14	699Kb / 22P	700 mA dual DC-DC converter for powering AMOLED displays 16-Aug-2012
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