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STOD30 датащи(PDF) 1 Page - STMicroelectronics

номер детали STOD30
подробное описание детали  300 mA triple DC-DC converter for powering AMOLED display
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STOD30 датащи(HTML) 1 Page - STMicroelectronics

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For further information contact your local STMicroelectronics sales office.
January 2014
DocID025751 Rev 1
1/8
STOD30
300 mA triple DC-DC converter for powering AMOLED display
Data brief
Features
• Two step-up converters and an inverting
converter
• Operating input voltage range from 2.5 V to
4.5 V
• Synchronous rectification for all DC-DC
converters
• 300 mA output current for step-up and inverting
converters (V
IN
> 2.9 V)
• 60 mA output current for auxiliary step-up
converter
• Step-up converter fixed 4.6 V positive voltage
• Programmable negative voltage by S
WIRE
from
-1.4 V to -5.4 V in 100m V steps
• Greater than 90% efficiency
• Pulse skipping mode at light load condition
• 1.45 MHz PWM mode control switching
frequency
• TDMA noise high immunity
• Auxiliary step-up converter positive voltage
programmable by S
WIRE
from 6.7 V to 7.6 V in
300 mV steps and configurable by external
pull-down resistor
• Enable pin for auxiliary step-up converter
shutdown mode
• Low quiescent current in shutdown mode
• Soft-start with inrush current protection
• Overtemperature protection
• Temperature range -40 °C to 85 °C
• True shutdown mode
• Fast outputs discharge after shutdown
• Short-circuit protection
• Package QFN 3.5x3.5 18 leads, 0.5 mm pitch
Applications
• Active matrix OLED power supply in portable
devices
• Cellular phones, multimedia players,
camcorders and digital cameras
Description
The STOD30 is a triple DC-DC converter for
AMOLED display panel. It integrates 300 mA
step-up and inverting DC-DC converters plus
auxiliary step-up converter. This device is
particularly suitable for battery operated products,
in which the major concern is the overall system
efficiency. It works in pulse skipping mode during
low load condition and PWM mode at 1.45 MHz
frequency for medium/high load conditions. The
high frequency allows the value and size of
external components to be reduced. The enable
and SWIRE pins allow the device to be turned off
so to reduce the current consumption to less than
1
μA. The negative inverter and auxiliary step-up
positive output voltages can be programmed by
an MCU through a dedicated pin which
implements S
WIRE
protocol. Auxiliary step-up
positive output voltage is also configured by an
external pull-down resistor. Soft-start with
controlled inrush current limit, thermal shutdown
and short-circuit protection are integrated
functions of the device.
QFN18 3.5x3.5 mm
Table 1. Device summary
Order code
Package
Packaging
STOD30TPQR
QFN18 3.5x3.5
mm
3000 parts per
reel
www.st.com


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