STOD13AS 250 mA dual DC-DC converter for powering AMOLED display

The STOD13AS 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, thermal shutdown, and short-circuit protection are integrated functions of the device

技术特性

Step-up and inverter converters
Operating input voltage range from 2.5 V to 4.5 V
Synchronous rectification for both DC-DC converters
Minimum 250 mA output current
4.6 V fixed positive output voltage
Programmable negative voltage by SWIREfrom -2.4 V to -6.4 V at 100 mV steps
Typical efficiency: 85%
Pulse skipping mode in light load condition
1.5 MHz PWM mode control switching frequency
TDMA noise high immunity
Enable pin for 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 discharge outputs of the circuits after shutdown
Short-circuit protection
Package DFN12L (3 x 3 mm) 0.6 mm height

应用领域

Active matrix AMOLED power supply in portable devices
Cellular phones
Camcorders and digital still cameras
Multimedia players

功能框图

STOD13AS 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
STOD13ASTPUR	Active		1000	VFDFPN 12 3x3x0.55	Tape And Reel	-40 °C-85 °C	STOD13ASTPUR

DATASHEET

描述	版本	大小
STOD13AS : DS8859: 250 mA dual DC-DC converter for powering AMOLED displays	1	690KB