The NT50198B is a high-performance step-up charge pump and inverter to generate two output voltages; it
includes pumping controllers for positive and negative output voltage. The following content contains the detailed
description and the information of component selection.
The positive charge-pump controller provides a fixed 2x ratio of AVDD and a fixed -1x ratio of AVEE to supply
the TFT. The pumping clock can be generated by internal circuit to reduce the control signal from driver IC. Or the
charge and pump state can be synchronized with LCD display TE signal (PSYNC), it can reduce the interference to
display quality when states change.
The device requires only five small and low-cost ceramic capacitors.
NT50198B is available in TDFN-12 pins package for smart phone LCD panel’s driver IC.
Note:According to the FPC layout experience, the components on the FPC may have chance to fall off when

wind the FPC. So we strongly suggest to add the Stiffener under the FPC backside area of NT50198B.

* Charge pump x2 mode for positive AVDD and -1x mode for negative AVEE .
* 2.5V to 4.8V input supply voltage range
* AVDD output range:5V to 6.0V.
* AVEE output range:-5V to -6.0V.
* Charge pump clock synchronized with PSYNC for benefit of low noise.
* Positive and Negative regulated charge Pump with Diode free.
* External Capacitor 5C only.
* TDFN-12 (1.5mm * 2.4mm * 0.5 mm) package is available.
* Control signals voltage 1.65V to 6.0V.

Shenzhen Ruichengao Technology co.,Ltd is a distributor of various types of electronic components .We specialized in connentor,IC,capacitance,resistance etc.

Our company is committed to supplying components for portable computers,touch screen,mobile phones,audio equipments,car DVD and other household appliances.

To support our customers,we have large stock inventory for the rare parts in Hong Kong and Shenzhen.We also have wide supply chains in Europe,America,Southeast Asia and other markets.So that we are qualified to assist all of our intemational customers with price and delivery quotations.

Our advantage

-We have large stock inventory for the rare parts in Hong Kong and Shenzhen;

- 100% Quality guarantee on all productes

Quality Warranty

1. Quality Assurance for 30-120days

2. New, unused and original goods

Mode Of Payment

1. T/T in advance

2. West Union

3. Escrow

4. Paypal