STOD1812 Power supply for PMOLED display panel

STOD1812 is a step-up converter designed to power passive matrix OLED (PMOLED) displays, providing the pre-charge and biasing voltage of the column matrix driver. STOD1812 uses a pulsed frequency modulation (PFM) control mode technique. The high switching frequency makes it possible to reduce the value and size of the external components. This device is particularly suitable for battery-operated applications, where overall system efficiency is the major concern.

Synchronous rectification has been integrated in the device in order to eliminate the external Schottky diode. An internal compensation net is also integrated, enabling the STOD1812 to provide excellent load transient performance in addition to good load regulation.

The output voltage is set using two external resistors. Over-temperature protection and undervoltage lockout (UVLO) functions are integrated in the device. An additional switch implements a true load disconnection feature which stops the currrent flowing from the input when the device is in shutdown mode. The EN pin turns off the device, reducing the quiescent current to 0.1 μA.

技术特性

Synchronous step-up converter
Input voltage range from 2.5 V to 5.5 V
Maximum output current 120 mA
Efficiency: 75 % at IO = 10 mA - 30 mA; 85 % at IO = 30 mA - 120 mA
Switching at 1.2 MHz in typical application conditions
Enable pin for shutdown mode
True load disconnect
Soft-start to limit inrush current
UVLO protection
Adjustable output voltage up to 20 V
Low quiescent current: < 1 μA in shutdown mode
Over-temperature protection
Package: DFN10L 3x3 mm, 0.8 mm
Operating junction temperature range: -40 °C to 125 °C

功能框图

STOD1812 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
STOD1812PUR	Active		1000	VDFPN 10 3x3x1.0	Tape And Reel	-40 °C to 125 °C	STOD1812PUR

DATASHEET

描述	版本	大小
STOD1812 : Power supply for PMOLED display panel	1	1281KB