MAX1748EUE+ by Analog Devices

Triple-Output TFT-LCD DC-DC Converters

Status: Active
Series: MAX1748
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX1748/MAX8726 triple-output DC-DC converters in a low-profile TSSOP package provide the regulated voltages required by active-matrix, thin-film transistor (TFT) liquid-crystal displays (LCDs). One high-power DC-DC converter and two low-power charge pumps convert the +3.3V to +5V input supply voltage into three independent output voltages. The primary 1MHz DC-DC converter generates a boosted output voltage (VMAIN) up to 13V using ultra-small inductors and ceramic capacitors. The low-power BiCMOS control circuitry and the low on-resistance (0.35Ω) of the integrated power MOSFET allows efficiency up to 93%. The dual charge pumps independently regulate one positive output (VPOS) and one negative output (VNEG). These low-power outputs use external diode and capacitor stages (as many stages as required) to regulate output voltages up to +40V and down to -40V. A proprietary regulation algorithm minimizes output ripple, as well as capacitor sizes for both charge pumps. For both the MAX1748 and MAX8726, the supply sequence is VMAIN first, VNEG next, and finally VPOS. The MAX1748 soft-starts each supply as soon as the previous supply finishes. The MAX8726 adds a delay between the startups of VMAIN and VNEG and also between VNEG and VPOS. The MAX1748/MAX8726 are available in the ultra-thin TSSOP package (1.1mm max height).

Where to Buy

Prices starting from US$1.79

Distributor Stock
Logo for Analog Devices
Analog Devices
from US$1.79
27,499
in stock
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Farnell
from US$2.36
0
in stock
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Newark Electronics
-
0
in stock
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Features

Three Integrated DC-DC Converters
1MHz Current-Mode PWM Boost Regulator Up to +13V Main High-Power Output ±1% Accuracy High Efficiency (93%)
Up to +13V Main High-Power Output
±1% Accuracy
High Efficiency (93%)
Dual Charge-Pump Outputs Up to +40V Positive Charge-Pump Output Down to -40V Negative Charge-Pump Output
Up to +40V Positive Charge-Pump Output
Down to -40V Negative Charge-Pump Output
Internal Supply Sequencing
Internal Power MOSFETs
+2.7V to +5.5V Input Supply
0.1µA Shutdown Current
0.6mA Quiescent Current
Internal Soft-Start
Power-Ready Output
Ultra-Small External Components
Thin TSSOP Package (1.1mm max)

Specifications

VIN (V) (min) 2.7
VIN (V) (max) 5.5
# Step-Up Outputs 2
# Inverting Outputs 1
VOUT (V) (min) 2.7
VOUT (V) (max) 13
Package/Pins TSSOP/16
BudgetaryPrice (See Notes) 1.46

Last 6 months Inventory & Pricing History

MAX1748EUE+ Drivers & Interfaces by Analog Devices

DC-DC CONV, TRIPLE, TFT-LCD, TSSOP-16

Semiconductors - ICs
> Drivers & Interfaces
> Display Drivers
Status: Unknown
Series: -
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Driver Case Style TSSOP
No. of Pins 16Pins
Supply Voltage Min 2.7V
Supply Voltage Max 5.5V
Operating Temperature Min -40°C
RoHS Compliant Yes

Last 6 months Inventory & Pricing History

Alternative Descriptions

Triple-Output TFT-LCD DC-DC Co | Analog Devices
Dc-Dc Conv, Triple, Tft-Lcd, Tssop-16 | Newark Electronics

Frequently Asked Questions

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Is the MAX1748EUE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, Farnell and Newark Electronics have stock available or on a lead time for MAX1748EUE+ .

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