STOD14 Datasheet, PDF (1/22 Pages) STMicroelectronics – 700 mA dual DC-DC converter for powering AMOLED displays

STOD14
700 mA dual DC-DC converter for powering AMOLED displays
Features
■ Step-down and inverter converters
■ Operating input voltage range from 6 V to 13 V
■ Synchronous rectification for both converters
■ 700 mA output current
■ Fixed positive voltage 4.6 V
■ Programmable negative voltage by S_WIRE from
- 2.4 V to - 6.0 V
■ Typical efficiency 85%
■ PWM mode controller @ 1.6 MHz switching
frequency
■ Enable pin for shutdown mode
■ Low quiescent current in shutdown mode
■ Soft-start with inrush current protection
■ Short-circuit protection on positive output
■ Overtemperature protection
■ Temperature range - 40 °C to 85 °C
■ True shutdown mode
■ Fast output discharge after shutdown
■ Package DFN 4x4 mm 12 leads 0.75 mm
height, 0.5 mm pitch
Applications
■ Digital photo frames
■ Ultra mobile PCs
■ Mobile Internet devices
■ Digital still cameras / camcorders
■ Portable media players / DVD players
Datasheet — production data
DFN12L (4 x 4 mm)
Description
The STOD14 is a dual channel DC-DC converter
driver for medium-sized AMOLED display panels.
It integrates a step-down and an inverting
converter in a compact IC design. The excellent
efficiency makes it particularly suitable for battery
operated products. The high frequency operation
allows the value and size of external components
to be reduced.
The positive output voltage is fixed at 4.6 V with
very high current capability and is generated
using a buck converter. The negative output is
programmable by an external MCU through a
dedicated pin which implements single-wire
protocol, with values from - 2.4 to - 6.0 V.
Soft-start with controlled inrush current limit, load
disconnect and thermal shutdown are integrated
functions of the device.
Table 1. Device summary
Order code
Positive voltage
STOD14PUR
4.6 V
Negative voltage
- 2.4 V to - 6.0 V
Package
DFN12L (4 x 4 mm)
Packaging
3000 parts per reel
August 2012
This is information on a product in full production.
Doc ID 023562 Rev 1
1/22
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