MAX1747 データシート PDF

部品番号 : MAX1747

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

メーカー : Maxim Integrated

ピン配置図 :

MAX1747 datasheet

部品情報 :

General 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 ceram
ic capacitors.

♦Adjustable Outputs
Up to +5.5V Main High-Power Output
Up to +35V Positive Charge-Pump Output
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)

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