MAX1747 Datasheet – charge-pump DC-DC converter

Part Number : MAX1747

Function : Triple Charge-Pump TFT LCD DC-DC Converter

Package : 20-Pin TSSOP Type

Manufacturers : Maxim Integrated

Pinouts :

MAX1747 datasheet

Description :

The MAX1747 triple charge-pump DC-DC converter provides the regulated voltages required by active matrix thin-film transistor (TFT) liquid-crystal displays (LCDs) in a low-profile TSSOP package. One high power and two low-power charge pumps convert the +2.7V to +4.5V input supply voltage into three indepen dent output voltages.

The primary high-power charge pump generates an output voltage (VOUT) between 4.5V and 5.5V that is regulated within ±1%. The low-power BiCMOS control circuitry and the low on-resistance (RON) power MOSFETs maximize efficiency. The adjustable switching frequency (200kHz to 2MHz) provides fast transient response and allows the use of small low-profile ceramic capacitors.

Features

♦Adjustable Outputs
(1) Up to +5.5V Main High-Power Output
(2) Up to +35V Positive Charge-Pump Output
(3) Down to -35V Negative Charge-Pump Output
♦200kHz to 2MHz Adjustable Switching Frequency
♦+2.7V to +4.5V Input Supply
♦Internal Power MOSFETs
♦0.1µA Shutdown Current
♦Internal Soft-Start
♦Power-Ready Output
♦Internal Supply Sequencing
♦Fast Transient Response
♦Ultra-Thin Solution (No Inductors)
♦Thin TSSOP Package (1.1mm max)

Other data sheets within the file : MAX1747EUP, MAX1747EUP+

MAX1747 Datasheet PDF Download

MAX1747 pdf