STOD03A Datasheet, PDF (1/22 Pages) STMicroelectronics – Dual DC-DC converter for powering AMOLED displays

STOD03A
Dual DC-DC converter for powering AMOLED displays
Datasheet - production data
• Fast discharge outputs of the circuits after
shutdown
• Package DFN12L (3 x 3) 0.6 mm height
Applications
DFN12L (3 x 3 mm)
Features
• Active matrix AMOLED power supply
• Cellular phones
• Camcorders and digital still cameras
• Multimedia players
• Step-up and inverter converters
• Operating input voltage range from 2.3 V to
4.5 V
• Synchronous rectification for both DC-DC
converters
• 200 mA output current
• 4.6 V fixed positive output voltages
• Programmable negative voltage by S_WIRE from
- 2.4 V to - 5.4 V
• Typical efficiency: 85%
• Pulse skipping mode in light load condition
• 1.5 MHz PWM mode control switching
frequency
• Enable pin for shutdown mode
• Low quiescent current: < 1 µA in shutdown
mode
• Soft-start with inrush current protection
• Overtemperature protection
• Temperature range: - 40 °C to 85 °C
• True-shutdown mode
Description
The STOD03A is a dual DC-DC converter for
AMOLED display panels. It integrates a step-up
and an inverting DC-DC converter making it
particularly suitable for battery operated products,
in which the major concern is overall system
efficiency. It works in pulse skipping mode during
low load conditions and PWM-MODE at 1.5 MHz
frequency for medium/high load conditions. The
high frequency allows the value and size of
external components to be reduced. The Enable
pin allows the device to be turned off, therefore
reducing the current consumption to less than
1 µA. The negative output voltage can be
programmed by an MCU through a dedicated pin
which implements single-wire protocol. Soft-start
with controlled inrush current limit and thermal
shutdown are integrated functions of the device.
Table 1. Device summary
Order code
Positive voltage Negative voltage
Package
Packaging
STOD03ATPUR
4.6V
-2.4V to -5.4V
DFN12L (3 x 3mm) 3000 parts per reel
June 2013
This is information on a product in full production.
DocID17785 Rev 3
1/22
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